X-Git-Url: https://git.whamcloud.com/?a=blobdiff_plain;f=lustre%2Ftests%2Ftest-framework.sh;h=0d09af4fd87c1c3dcedad33065b63001a75aea77;hb=1cecd6cc21fc408f6cbefd82569967cceb3c40fb;hp=8e64931d7091b8c1de39407bdd500cf135479246;hpb=a7fb215903f6fc9ea93e85b89d1ef9abcff0cdb7;p=fs%2Flustre-release.git

diff --git a/lustre/tests/test-framework.sh b/lustre/tests/test-framework.sh
index 8e64931..0d09af4 100644
--- a/lustre/tests/test-framework.sh
+++ b/lustre/tests/test-framework.sh
@@ -7,6 +7,7 @@ set -e
 
 
 export REFORMAT=${REFORMAT:-""}
+export WRITECONF=${WRITECONF:-""}
 export VERBOSE=false
 export GMNALNID=${GMNALNID:-/usr/sbin/gmlndnid}
 export CATASTROPHE=${CATASTROPHE:-/proc/sys/lnet/catastrophe}
@@ -14,28 +15,21 @@ export GSS=false
 export GSS_KRB5=false
 export GSS_PIPEFS=false
 export IDENTITY_UPCALL=default
+
 #export PDSH="pdsh -S -Rssh -w"
 
-# eg, assert_env LUSTRE MDSNODES OSTNODES CLIENTS
-assert_env() {
-    local failed=""
-    for name in $@; do
-        if [ -z "${!name}" ]; then
-            echo "$0: $name must be set"
-            failed=1
-        fi
-    done
-    [ $failed ] && exit 1 || true
-}
+# function used by scripts run on remote nodes
+LUSTRE=${LUSTRE:-$(cd $(dirname $0)/..; echo $PWD)}
+. $LUSTRE/tests/functions.sh
 
 assert_DIR () {
     local failed=""
-    [ -z "`echo :$DIR: | grep :$MOUNT:`" ] && \
-        failed=1 && echo "DIR not in $MOUNT. Aborting."
-    [ -z "`echo :$DIR1: | grep :$MOUNT1:`" ] && \
-        failed=1 && echo "DIR1 not in $MOUNT1. Aborting."
-    [ -z "`echo :$DIR2: | grep :$MOUNT2:`" ] && \
-        failed=1 && echo "DIR2 not in $MOUNT2. Aborting"
+    [[ $DIR/ = $MOUNT/* ]] || \
+        { failed=1 && echo "DIR=$DIR not in $MOUNT. Aborting."; }
+    [[ $DIR1/ = $MOUNT1/* ]] || \
+        { failed=1 && echo "DIR1=$DIR1 not in $MOUNT1. Aborting."; }
+    [[ $DIR2/ = $MOUNT2/* ]] || \
+        { failed=1 && echo "DIR2=$DIR2 not in $MOUNT2. Aborting"; }
 
     [ -n "$failed" ] && exit 99 || true
 }
@@ -82,6 +76,14 @@ print_summary () {
 init_test_env() {
     export LUSTRE=`absolute_path $LUSTRE`
     export TESTSUITE=`basename $0 .sh`
+    export TEST_FAILED=false
+
+    export MKE2FS=${MKE2FS:-mke2fs}
+    export DEBUGFS=${DEBUGFS:-debugfs}
+    export TUNE2FS=${TUNE2FS:-tune2fs}
+    export E2LABEL=${E2LABEL:-e2label}
+    export DUMPE2FS=${DUMPE2FS:-dumpe2fs}
+    export E2FSCK=${E2FSCK:-e2fsck}
 
     #[ -d /r ] && export ROOT=${ROOT:-/r}
     export TMP=${TMP:-$ROOT/tmp}
@@ -96,8 +98,14 @@ init_test_env() {
     if ! echo $PATH | grep -q $LUSTRE/tests; then
 	export PATH=$PATH:$LUSTRE/tests
     fi
-    export MDSRATE=${MDSRATE:-"$LUSTRE/tests/mdsrate"}
-    [ ! -f "$MDSRATE" ] && export MDSRATE=$(which mdsrate)
+    export MDSRATE=${MDSRATE:-"$LUSTRE/tests/mpi/mdsrate"}
+    [ ! -f "$MDSRATE" ] && export MDSRATE=$(which mdsrate 2> /dev/null)
+    if ! echo $PATH | grep -q $LUSTRE/tests/racer; then
+        export PATH=$PATH:$LUSTRE/tests/racer
+    fi
+    if ! echo $PATH | grep -q $LUSTRE/tests/mpi; then
+        export PATH=$PATH:$LUSTRE/tests/mpi
+    fi
     export LCTL=${LCTL:-"$LUSTRE/utils/lctl"}
     [ ! -f "$LCTL" ] && export LCTL=$(which lctl)
     export LFS=${LFS:-"$LUSTRE/utils/lfs"}
@@ -115,13 +123,13 @@ init_test_env() {
     export TUNEFS=${TUNEFS:-"$LUSTRE/utils/tunefs.lustre"}
     [ ! -f "$TUNEFS" ] && export TUNEFS=$(which tunefs.lustre)
     export CHECKSTAT="${CHECKSTAT:-"checkstat -v"} "
-    export FSYTPE=${FSTYPE:-"ldiskfs"}
+    export FSTYPE=${FSTYPE:-"ldiskfs"}
     export NAME=${NAME:-local}
     export LGSSD=${LGSSD:-"$LUSTRE/utils/gss/lgssd"}
     [ "$GSS_PIPEFS" = "true" ] && [ ! -f "$LGSSD" ] && \
         export LGSSD=$(which lgssd)
     export LSVCGSSD=${LSVCGSSD:-"$LUSTRE/utils/gss/lsvcgssd"}
-    [ ! -f "$LSVCGSSD" ] && export LSVCGSSD=$(which lsvcgssd)
+    [ ! -f "$LSVCGSSD" ] && export LSVCGSSD=$(which lsvcgssd 2> /dev/null)
     export KRB5DIR=${KRB5DIR:-"/usr/kerberos"}
     export DIR2
     export SAVE_PWD=${SAVE_PWD:-$LUSTRE/tests}
@@ -157,11 +165,12 @@ init_test_env() {
 
     # command line
 
-    while getopts "rvf:" opt $*; do
+    while getopts "rvwf:" opt $*; do
         case $opt in
             f) CONFIG=$OPTARG;;
             r) REFORMAT=--reformat;;
             v) VERBOSE=true;;
+            w) WRITECONF=writeconf;;
             \?) usage;;
         esac
     done
@@ -171,9 +180,13 @@ init_test_env() {
 
     [ "$TESTSUITELOG" ] && rm -f $TESTSUITELOG || true
     rm -f $TMP/*active
-
 }
 
+case `uname -r` in
+2.4.*) EXT=".o"; USE_QUOTA=no; [ ! "$CLIENTONLY" ] && FSTYPE=ext3;;
+    *) EXT=".ko"; USE_QUOTA=yes;;
+esac
+
 load_module() {
     EXT=".ko"
     module=$1
@@ -206,11 +219,12 @@ load_modules() {
 
     echo Loading modules from $LUSTRE
     load_module ../libcfs/libcfs/libcfs
-    [ "$PTLDEBUG" ] && lctl set_param debug=$PTLDEBUG
-    [ "$SUBSYSTEM" ] && lctl set_param subsystem_debug=${SUBSYSTEM# }
+    [ "$PTLDEBUG" ] && lctl set_param debug="$PTLDEBUG"
+    [ "$SUBSYSTEM" ] && lctl set_param subsystem_debug="${SUBSYSTEM# }"
+    local MODPROBECONF=
     [ -f /etc/modprobe.conf ] && MODPROBECONF=/etc/modprobe.conf
-    [ -f /etc/modprobe.d/Lustre ] && MODPROBECONF=/etc/modprobe.d/Lustre
-    [ -z "$LNETOPTS" -a -n "$MODPROBECONF" ] && \
+    [ ! "$MODPROBECONF" -a -d /etc/modprobe.d ] && MODPROBECONF=/etc/modprobe.d/Lustre
+    [ -z "$LNETOPTS" -a "$MODPROBECONF" ] && \
         LNETOPTS=$(awk '/^options lnet/ { print $0}' $MODPROBECONF | sed 's/^options lnet //g')
     echo $LNETOPTS | grep -q "accept=all"  || LNETOPTS="$LNETOPTS accept=all";
     echo "lnet options: '$LNETOPTS'"
@@ -222,12 +236,9 @@ load_modules() {
     load_module obdclass/obdclass
     load_module ptlrpc/ptlrpc
     load_module ptlrpc/gss/ptlrpc_gss
-    # Now, some modules depend on lquota without USE_QUOTA check,
-    # will fix later. Disable check "$USE_QUOTA" = "yes" temporary.
-    #[ "$USE_QUOTA" = "yes" ] && load_module quota/lquota
-    load_module quota/lquota
-    load_module fid/fid
+    [ "$USE_QUOTA" = "yes" -a "$LQUOTA" != "no" ] && load_module quota/lquota
     load_module fld/fld
+    load_module fid/fid
     load_module lmv/lmv
     load_module mdc/mdc
     load_module osc/osc
@@ -235,6 +246,7 @@ load_modules() {
     load_module mgc/mgc
     if [ -z "$CLIENTONLY" ] && [ -z "$CLIENTMODSONLY" ]; then
         grep -q crc16 /proc/kallsyms || { modprobe crc16 2>/dev/null || true; }
+        grep -q jbd /proc/kallsyms || { modprobe jbd 2>/dev/null || true; }
         [ "$FSTYPE" = "ldiskfs" ] && load_module ../ldiskfs/ldiskfs/ldiskfs
         load_module mgs/mgs
         load_module mds/mds
@@ -249,9 +261,9 @@ load_modules() {
 
     load_module llite/lustre
     load_module llite/llite_lloop
-    rm -f $TMP/ogdb-$HOSTNAME
-    OGDB=$TMP
-    [ -d /r ] && OGDB="/r/tmp"
+    [ -d /r ] && OGDB=${OGDB:-"/r/tmp"}
+    OGDB=${OGDB:-$TMP}
+    rm -f $OGDB/ogdb-$HOSTNAME
     $LCTL modules > $OGDB/ogdb-$HOSTNAME
 
     # 'mount' doesn't look in $PATH, just sbin
@@ -305,7 +317,7 @@ check_mem_leak () {
         echo "$LEAK_LUSTRE" 1>&2
         echo "$LEAK_PORTALS" 1>&2
         mv $TMP/debug $TMP/debug-leak.`date +%s` || true
-        log "Memory leaks detected"
+        echo "Memory leaks detected"
         [ -n "$IGNORE_LEAK" ] && { echo "ignoring leaks" && return 0; } || true
         return 1
     fi
@@ -321,7 +333,7 @@ unload_modules() {
     local MODULES=$($LCTL modules | awk '{ print $2 }')
     if [ -n "$MODULES" ]; then
         echo "Modules still loaded: "
-        echo $MODULES 
+        echo $MODULES
         if [ "$(lctl dl)" ]; then
             echo "Lustre still loaded"
             lctl dl || true
@@ -410,6 +422,10 @@ stop_gss_daemons() {
 init_gss() {
     if $GSS; then
         start_gss_daemons
+
+        if [ -n "$LGSS_KEYRING_DEBUG" ]; then
+            echo $LGSS_KEYRING_DEBUG > /proc/fs/lustre/sptlrpc/gss/lgss_keyring/debug_level
+        fi
     fi
 }
 
@@ -438,21 +454,21 @@ ostdevlabel() {
 mount_facet() {
     local facet=$1
     shift
-    local dev=${facet}_dev
+    local dev=$(facet_active $facet)_dev
     local opt=${facet}_opt
     echo "Starting ${facet}: ${!opt} $@ ${!dev} ${MOUNT%/*}/${facet}"
-    do_facet ${facet} mount -t lustre ${!opt} $@ ${!dev} ${MOUNT%/*}/${facet}     
+    do_facet ${facet} mount -t lustre ${!opt} $@ ${!dev} ${MOUNT%/*}/${facet}
     RC=${PIPESTATUS[0]}
     if [ $RC -ne 0 ]; then
         echo "mount -t lustre $@ ${!dev} ${MOUNT%/*}/${facet}"
         echo "Start of ${!dev} on ${facet} failed ${RC}"
     else
-        do_facet ${facet} "lctl set_param debug=$PTLDEBUG; \
-            lctl set_param subsystem_debug=${SUBSYSTEM# }; \
+        do_facet ${facet} "lctl set_param debug=\\\"$PTLDEBUG\\\"; \
+            lctl set_param subsystem_debug=\\\"${SUBSYSTEM# }\\\"; \
             lctl set_param debug_mb=${DEBUG_SIZE}; \
             sync"
- 
-        label=$(do_facet ${facet} "e2label ${!dev}")
+
+        label=$(do_facet ${facet} "$E2LABEL ${!dev}")
         [ -z "$label" ] && echo no label for ${!dev} && exit 1
         eval export ${facet}_svc=${label}
         echo Started ${label}
@@ -468,6 +484,14 @@ start() {
     shift
     eval export ${facet}_dev=${device}
     eval export ${facet}_opt=\"$@\"
+
+    local varname=${facet}failover_dev
+    if [ -n "${!varname}" ] ; then
+        eval export ${facet}failover_dev=${!varname}
+    else
+        eval export ${facet}failover_dev=$device
+    fi
+
     do_facet ${facet} mkdir -p ${MOUNT%/*}/${facet}
     mount_facet ${facet}
     RC=$?
@@ -492,6 +516,90 @@ stop() {
     wait_exit_ST ${facet}
 }
 
+# save quota version (both administrative and operational quotas)
+# add an additional parameter if mountpoint is ever different from $MOUNT
+quota_save_version() {
+    local fsname=${2:-$FSNAME}
+    local spec=$1
+    local ver=$(tr -c -d "123" <<< $spec)
+    local type=$(tr -c -d "ug" <<< $spec)
+
+    [ -n "$ver" -a "$ver" != "3" ] && error "wrong quota version specifier"
+
+    [ -n "$type" ] && { $LFS quotacheck -$type $MOUNT || error "quotacheck has failed"; }
+
+    do_facet mgs "lctl conf_param ${fsname}-MDT*.mdd.quota_type=$spec"
+    local varsvc
+    local osts=$(get_facets OST)
+    for ost in ${osts//,/ }; do
+        varsvc=${ost}_svc
+        do_facet mgs "lctl conf_param ${!varsvc}.ost.quota_type=$spec"
+    done
+}
+
+# client could mount several lustre 
+quota_type () {
+    local fsname=${1:-$FSNAME}
+    local rc=0
+    do_facet mgs lctl get_param mdd.${fsname}-MDT*.quota_type || rc=$?
+    do_nodes $(comma_list $(osts_nodes)) \
+        lctl get_param obdfilter.${fsname}-OST*.quota_type || rc=$?
+    return $rc 
+}
+
+restore_quota_type () {
+   local mntpt=${1:-$MOUNT}
+   local quota_type=$(quota_type $FSNAME | grep MDT | cut -d "=" -f2)
+   if [ ! "$old_QUOTA_TYPE" ] || [ "$quota_type" = "$old_QUOTA_TYPE" ]; then
+        return
+   fi
+   quota_save_version $old_QUOTA_TYPE
+}
+
+setup_quota(){
+    local mntpt=$1
+
+    # We need:
+    # 1. run quotacheck only if quota is off
+    # 2. save the original quota_type params, restore them after testing
+
+    # Suppose that quota type the same on mds and ost
+    local quota_type=$(quota_type | grep MDT | cut -d "=" -f2)
+    [ ${PIPESTATUS[0]} -eq 0 ] || error "quota_type failed!"
+    echo "[HOST:$HOSTNAME] [old_quota_type:$quota_type] [new_quota_type:$QUOTA_TYPE]"
+    if [ "$quota_type" != "$QUOTA_TYPE" ]; then
+        export old_QUOTA_TYPE=$quota_type
+        quota_save_version $QUOTA_TYPE
+    fi
+
+    local quota_usrs=$QUOTA_USERS
+
+    # get_filesystem_size
+    local disksz=$(lfs df $mntpt | grep "filesystem summary:"  | awk '{print $3}')
+    local blk_soft=$((disksz + 1024))
+    local blk_hard=$((blk_soft + blk_soft / 20)) # Go 5% over
+
+    local Inodes=$(lfs df -i $mntpt | grep "filesystem summary:"  | awk '{print $3}')
+    local i_soft=$Inodes
+    local i_hard=$((i_soft + i_soft / 20))
+
+    echo "Total disk size: $disksz  block-softlimit: $blk_soft block-hardlimit:
+        $blk_hard inode-softlimit: $i_soft inode-hardlimit: $i_hard"
+
+    local cmd
+    for usr in $quota_usrs; do
+        echo "Setting up quota on $HOSTNAME:$mntpt for $usr..."
+        for type in u g; do
+            cmd="$LFS setquota -$type $usr -b $blk_soft -B $blk_hard -i $i_soft -I $i_hard $mntpt"
+            echo "+ $cmd"
+            eval $cmd || error "$cmd FAILED!"
+        done
+        # display the quota status
+        echo "Quota settings for $usr : "
+        $LFS quota -v -u $usr $mntpt || true
+    done
+}
+
 zconf_mount() {
     local OPTIONS
     local client=$1
@@ -510,25 +618,98 @@ zconf_mount() {
     do_node $client mkdir -p $mnt
     do_node $client mount -t lustre $OPTIONS $device $mnt || return 1
 
-    do_node $client "lctl set_param debug=$PTLDEBUG;
-        lctl set_param subsystem_debug=${SUBSYSTEM# };
+    do_node $client "lctl set_param debug=\\\"$PTLDEBUG\\\";
+        lctl set_param subsystem_debug=\\\"${SUBSYSTEM# }\\\";
         lctl set_param debug_mb=${DEBUG_SIZE}"
-    
+
     return 0
 }
 
 zconf_umount() {
     local client=$1
     local mnt=$2
+    local force
+    local busy 
+    local need_kill
+
     [ "$3" ] && force=-f
     local running=$(do_node $client "grep -c $mnt' ' /proc/mounts") || true
     if [ $running -ne 0 ]; then
         echo "Stopping client $client $mnt (opts:$force)"
-        lsof | grep "$mnt" || true
-        do_node $client umount $force $mnt
+        do_node $client lsof -t $mnt || need_kill=no
+        if [ "x$force" != "x" -a "x$need_kill" != "xno" ]; then
+            pids=$(do_node $client lsof -t $mnt | sort -u);
+            if [ -n $pids ]; then
+                do_node $client kill -9 $pids || true
+            fi
+        fi
+
+        busy=$(do_node $client "umount $force $mnt 2>&1" | grep -c "busy") || true
+        if [ $busy -ne 0 ] ; then
+            echo "$mnt is still busy, wait one second" && sleep 1
+            do_node $client umount $force $mnt
+        fi
     fi
 }
 
+# nodes is comma list
+sanity_mount_check_nodes () {
+    local nodes=$1
+    shift
+    local mnts="$@"
+    local mnt
+
+    # FIXME: assume that all cluster nodes run the same os
+    [ "$(uname)" = Linux ] || return 0
+
+    local rc=0
+    for mnt in $mnts ; do
+        do_nodes $nodes "running=\\\$(grep -c $mnt' ' /proc/mounts);
+mpts=\\\$(mount | grep -w -c $mnt);
+if [ \\\$running -ne \\\$mpts ]; then
+    echo \\\$(hostname) env are INSANE!;
+    exit 1;
+fi"
+    [ $? -eq 0 ] || rc=1 
+    done
+    return $rc
+}
+
+sanity_mount_check_servers () {
+    [ "$CLIENTONLY" ] && 
+        { echo "CLIENTONLY mode, skip mount_check_servers"; return 0; } || true
+    echo Checking servers environments
+
+    # FIXME: modify get_facets to display all facets wo params
+    local facets="$(get_facets OST),$(get_facets MDS),mgs"
+    local node
+    local mnt
+    local facet
+    for facet in ${facets//,/ }; do
+        node=$(facet_host ${facet})
+        mnt=${MOUNT%/*}/${facet}
+        sanity_mount_check_nodes $node $mnt ||
+            { error "server $node environments are insane!"; return 1; }
+    done
+}
+
+sanity_mount_check_clients () {
+    local clients=${1:-$CLIENTS}
+    local mntpt=${2:-$MOUNT}
+    local mntpt2=${3:-$MOUNT2}
+
+    [ -z $clients ] && clients=$(hostname)
+    echo Checking clients $clients environments
+
+    sanity_mount_check_nodes $clients $mntpt $mntpt2 ||
+       error "clients environments are insane!"
+}
+
+sanity_mount_check () {
+    sanity_mount_check_servers || return 1
+    sanity_mount_check_clients || return 2
+}
+
 # mount clients if not mouted
 zconf_mount_clients() {
     local OPTIONS
@@ -547,13 +728,22 @@ zconf_mount_clients() {
     fi
 
     echo "Starting client $clients: $OPTIONS $device $mnt"
-    do_nodes $clients "mount | grep $mnt || { mkdir -p $mnt && mount -t lustre $OPTIONS $device $mnt || false; }"
+
+    do_nodes $clients "
+running=\\\$(mount | grep -c $mnt' ');
+rc=0;
+if [ \\\$running -eq 0 ] ; then
+    mkdir -p $mnt;
+    mount -t lustre $OPTIONS $device $mnt;
+    rc=\\\$?;
+fi;
+exit \\\$rc" || return ${PIPESTATUS[0]}
 
     echo "Started clients $clients: "
-    do_nodes $clients "mount | grep $mnt"
+    do_nodes $clients "mount | grep -w $mnt"
 
-    do_nodes $clients "lctl set_param debug=$PTLDEBUG;
-        lctl set_param subsystem_debug=${SUBSYSTEM# };
+    do_nodes $clients "lctl set_param debug=\\\"$PTLDEBUG\\\";
+        lctl set_param subsystem_debug=\\\"${SUBSYSTEM# }\\\";
         lctl set_param debug_mb=${DEBUG_SIZE};"
 
     return 0
@@ -562,18 +752,59 @@ zconf_mount_clients() {
 zconf_umount_clients() {
     local clients=$1
     local mnt=$2
+    local force
+
     [ "$3" ] && force=-f
 
-    echo "Umounting clients: $clients"
     echo "Stopping clients: $clients $mnt (opts:$force)"
-    do_nodes $clients umount $force $mnt
+    do_nodes $clients "running=\\\$(grep -c $mnt' ' /proc/mounts);
+if [ \\\$running -ne 0 ] ; then
+echo Stopping client \\\$(hostname) client $mnt opts:$force;
+lsof -t $mnt || need_kill=no;
+if [ "x$force" != "x" -a "x\\\$need_kill" != "xno" ]; then
+    pids=\\\$(lsof -t $mnt | sort -u);
+    if [ -n \\\"\\\$pids\\\" ]; then
+             kill -9 \\\$pids;
+    fi
+fi;
+busy=\\\$(umount $force $mnt 2>&1 | grep -c "busy");
+if [ \\\$busy -ne 0 ] ; then
+    echo "$mnt is still busy, wait one second" && sleep 1;
+    umount $force $mnt;
+fi
+fi"
+}
+
+shudown_node_hard () {
+    local host=$1
+    local attempts=3
+
+    for i in $(seq $attempts) ; do
+        $POWER_DOWN $host
+        sleep 1
+        ping -w 3 -c 1 $host > /dev/null 2>&1 || return 0
+        echo "waiting for $host to fail attempts=$attempts"
+        [ $i -lt $attempts ] || \
+            { echo "$host still pingable after power down! attempts=$attempts" && return 1; } 
+    done
+}
+
+shutdown_client() {
+    local client=$1
+    local mnt=${2:-$MOUNT}
+    local attempts=3
+
+    if [ "$FAILURE_MODE" = HARD ]; then
+        shudown_node_hard $client 
+    else
+       zconf_umount_clients $client $mnt -f
+    fi
 }
 
 shutdown_facet() {
-    facet=$1
+    local facet=$1
     if [ "$FAILURE_MODE" = HARD ]; then
-        $POWER_DOWN `facet_active_host $facet`
-        sleep 2
+        shudown_node_hard $(facet_active_host $facet)
     elif [ "$FAILURE_MODE" = SOFT ]; then
         stop $facet
     fi
@@ -588,6 +819,158 @@ reboot_facet() {
     fi
 }
 
+boot_node() {
+    local node=$1
+    if [ "$FAILURE_MODE" = HARD ]; then
+       $POWER_UP $node
+       wait_for_host $node
+    fi
+}
+
+# recovery-scale functions
+check_progs_installed () {
+    local clients=$1
+    shift
+    local progs=$@
+
+    do_nodes $clients "PATH=:$PATH; status=true;
+for prog in $progs; do
+    if ! [ \\\"\\\$(which \\\$prog)\\\"  -o  \\\"\\\${!prog}\\\" ]; then
+       echo \\\$prog missing on \\\$(hostname);
+       status=false;
+    fi
+done;
+eval \\\$status"
+}
+
+client_var_name() {
+    echo __$(echo $1 | tr '-' 'X')
+}
+
+start_client_load() {
+    local client=$1
+    local load=$2
+    local var=$(client_var_name $client)_load
+    eval export ${var}=$load
+
+    do_node $client "PATH=$PATH MOUNT=$MOUNT ERRORS_OK=$ERRORS_OK \
+                              BREAK_ON_ERROR=$BREAK_ON_ERROR \
+                              END_RUN_FILE=$END_RUN_FILE \
+                              LOAD_PID_FILE=$LOAD_PID_FILE \
+                              TESTSUITELOG=$TESTSUITELOG \
+                              run_${load}.sh" &
+    CLIENT_LOAD_PIDS="$CLIENT_LOAD_PIDS $!"
+    log "Started client load: ${load} on $client"
+
+    return 0
+}
+
+start_client_loads () {
+    local -a clients=(${1//,/ })
+    local numloads=${#CLIENT_LOADS[@]}
+    local testnum
+
+    for ((nodenum=0; nodenum < ${#clients[@]}; nodenum++ )); do
+        testnum=$((nodenum % numloads))
+        start_client_load ${clients[nodenum]} ${CLIENT_LOADS[testnum]}
+    done
+}
+
+# only for remote client 
+check_client_load () {
+    local client=$1
+    local var=$(client_var_name $client)_load
+    local TESTLOAD=run_${!var}.sh
+
+    ps auxww | grep -v grep | grep $client | grep -q "$TESTLOAD" || return 1
+    
+    # bug 18914: try to connect several times not only when
+    # check ps, but  while check_catastrophe also
+    local tries=3
+    local RC=254
+    while [ $RC = 254 -a $tries -gt 0 ]; do
+        let tries=$tries-1
+        # assume success
+        RC=0
+        if ! check_catastrophe $client; then
+            RC=${PIPESTATUS[0]}
+            if [ $RC -eq 254 ]; then
+                # FIXME: not sure how long we shuold sleep here
+                sleep 10
+                continue
+            fi
+            echo "check catastrophe failed: RC=$RC "
+            return $RC
+        fi
+    done
+    # We can continue try to connect if RC=254
+    # Just print the warning about this
+    if [ $RC = 254 ]; then
+        echo "got a return status of $RC from do_node while checking catastrophe on $client"
+    fi
+
+    # see if the load is still on the client
+    tries=3
+    RC=254
+    while [ $RC = 254 -a $tries -gt 0 ]; do
+        let tries=$tries-1
+        # assume success
+        RC=0
+        if ! do_node $client "ps auxwww | grep -v grep | grep -q $TESTLOAD"; then
+            RC=${PIPESTATUS[0]}
+            sleep 30
+        fi
+    done
+    if [ $RC = 254 ]; then
+        echo "got a return status of $RC from do_node while checking (catastrophe and 'ps') the client load on $client"
+        # see if we can diagnose a bit why this is
+    fi
+
+    return $RC
+}
+check_client_loads () {
+   local clients=${1//,/ }
+   local client=
+   local rc=0
+
+   for client in $clients; do
+      check_client_load $client
+      rc=${PIPESTATUS[0]}
+      if [ "$rc" != 0 ]; then
+        log "Client load failed on node $client, rc=$rc"
+        return $rc
+      fi
+   done
+}
+
+restart_client_loads () {
+    local clients=${1//,/ }
+    local expectedfail=${2:-""}
+    local client=
+    local rc=0
+
+    for client in $clients; do
+        check_client_load $client
+        rc=${PIPESTATUS[0]}
+        if [ "$rc" != 0 -a "$expectedfail" ]; then
+            local var=$(client_var_name $client)_load
+            start_client_load $client ${!var}
+            echo "Restarted client load ${!var}: on $client. Checking ..."
+            check_client_load $client
+            rc=${PIPESTATUS[0]}
+            if [ "$rc" != 0 ]; then
+                log "Client load failed to restart on node $client, rc=$rc"
+                # failure one client load means test fail
+                # we do not need to check other 
+                return $rc
+            fi
+        else
+            return $rc
+        fi
+    done
+}
+# End recovery-scale functions
+
 # verify that lustre actually cleaned up properly
 cleanup_check() {
     [ -f $CATASTROPHE ] && [ `cat $CATASTROPHE` -ne 0 ] && \
@@ -612,6 +995,35 @@ cleanup_check() {
     return 0
 }
 
+wait_update () {
+    local node=$1
+    local TEST=$2
+    local FINAL=$3
+    local MAX=${4:-90}
+
+        local RESULT
+        local WAIT=0
+        local sleep=5
+        while [ true ]; do
+            RESULT=$(do_node $node "$TEST")
+            if [ "$RESULT" == "$FINAL" ]; then
+                echo "Updated after $WAIT sec: wanted '$FINAL' got '$RESULT'"
+                return 0
+            fi
+            [ $WAIT -ge $MAX ] && break
+            echo "Waiting $((MAX - WAIT)) secs for update"
+            WAIT=$((WAIT + sleep))
+            sleep $sleep
+        done
+        echo "Update not seen after $MAX sec: wanted '$FINAL' got '$RESULT'"
+        return 3
+}
+
+wait_update_facet () {
+    local facet=$1
+    wait_update  $(facet_active_host $facet) "$@"
+}
+
 wait_delete_completed () {
     local TOTALPREV=`lctl get_param -n osc.*.kbytesavail | \
                      awk 'BEGIN{total=0}; {total+=$1}; END{print total}'`
@@ -631,32 +1043,39 @@ wait_delete_completed () {
 }
 
 wait_for_host() {
-    HOST=$1
-    check_network "$HOST" 900
-    while ! do_node $HOST "ls -d $LUSTRE " > /dev/null; do sleep 5; done
+    local host=$1
+    check_network "$host" 900
+    while ! do_node $host hostname  > /dev/null; do sleep 5; done
 }
 
 wait_for() {
-    facet=$1
-    HOST=`facet_active_host $facet`
-    wait_for_host $HOST
+    local facet=$1
+    local host=`facet_active_host $facet`
+    wait_for_host $host
 }
 
-wait_mds_recovery_done () {
-    local timeout=`do_facet $SINGLEMDS lctl get_param  -n timeout`
-#define OBD_RECOVERY_TIMEOUT (obd_timeout * 5 / 2)
-# as we are in process of changing obd_timeout in different ways
-# let's set MAX longer than that
-    MAX=$(( timeout * 4 ))
-    WAIT=0
+wait_recovery_complete () {
+    local facet=$1
+
+    # Use default policy if $2 is not passed by caller. 
+    #define OBD_RECOVERY_TIMEOUT (obd_timeout * 5 / 2)
+    # as we are in process of changing obd_timeout in different ways
+    # let's set MAX longer than that
+    local MAX=${2:-$(( TIMEOUT * 4 ))}
+ 
+    local var_svc=${facet}_svc
+    local procfile="*.${!var_svc}.recovery_status"
+    local WAIT=0
+    local STATUS=
+
     while [ $WAIT -lt $MAX ]; do
-        STATUS=`do_facet $SINGLEMDS "lctl get_param -n mdt.*-MDT0000.recovery_status | grep status"`
-        echo $STATUS | grep COMPLETE && return 0
+        STATUS=$(do_facet $facet lctl get_param -n $procfile | grep status)
+        [[ $STATUS = "status: COMPLETE" ]] && return 0
         sleep 5
         WAIT=$((WAIT + 5))
-        echo "Waiting $(($MAX - $WAIT)) secs for MDS recovery done"
+        echo "Waiting $((MAX - WAIT)) secs for $facet recovery done. $STATUS"
     done
-    echo "MDS recovery not done in $MAX sec"
+    echo "$facet recovery not done in $MAX sec. $STATUS"
     return 1
 }
 
@@ -665,6 +1084,7 @@ wait_exit_ST () {
 
     local WAIT=0
     local INTERVAL=1
+    local running
     # conf-sanity 31 takes a long time cleanup
     while [ $WAIT -lt 300 ]; do
         running=$(do_facet ${facet} "lsmod | grep lnet > /dev/null && lctl dl | grep ' ST '") || true
@@ -686,10 +1106,10 @@ wait_remote_prog () {
    local rc=0
 
    [ "$PDSH" = "no_dsh" ] && return 0
-   
+
    while [ $WAIT -lt $2 ]; do
-        running=$(ps uax | grep "$PDSH.*$prog.*$MOUNT" | grep -v grep)
-        [ -z "${running}" ] && return 0
+        running=$(ps uax | grep "$PDSH.*$prog.*$MOUNT" | grep -v grep) || true
+        [ -z "${running}" ] && return 0 || true
         echo "waited $WAIT for: "
         echo "$running"
         [ $INTERVAL -lt 60 ] && INTERVAL=$((INTERVAL + INTERVAL))
@@ -699,13 +1119,14 @@ wait_remote_prog () {
     local pids=$(ps  uax | grep "$PDSH.*$prog.*$MOUNT" | grep -v grep | awk '{print $2}')
     [ -z "$pids" ] && return 0
     echo "$PDSH processes still exists after $WAIT seconds.  Still running: $pids"
+    # FIXME: not portable
     for pid in $pids; do
         cat /proc/${pid}/status || true
         cat /proc/${pid}/wchan || true
         echo "Killing $pid"
         kill -9 $pid || true
         sleep 1
-        ps -P $pid && rc=1 
+        ps -P $pid && rc=1
     done
 
     return $rc
@@ -734,15 +1155,14 @@ client_reconnect() {
 }
 
 facet_failover() {
-    facet=$1
+    local facet=$1
+    local sleep_time=$2
     echo "Failing $facet on node `facet_active_host $facet`"
     shutdown_facet $facet
+    [ -n "$sleep_time" ] && sleep $sleep_time
     reboot_facet $facet
-    client_df &
-    DFPID=$!
-    echo "df pid is $DFPID"
     change_active $facet
-    TO=`facet_active_host $facet`
+    local TO=`facet_active_host $facet`
     echo "Failover $facet to $TO"
     wait_for $facet
     mount_facet $facet || error "Restart of $facet failed"
@@ -757,8 +1177,8 @@ replay_barrier() {
     do_facet $facet sync
     df $MOUNT
     local svc=${facet}_svc
-    do_facet $facet $LCTL --device %${!svc} readonly
     do_facet $facet $LCTL --device %${!svc} notransno
+    do_facet $facet $LCTL --device %${!svc} readonly
     do_facet $facet $LCTL mark "$facet REPLAY BARRIER on ${!svc}"
     $LCTL mark "local REPLAY BARRIER on ${!svc}"
 }
@@ -768,8 +1188,18 @@ replay_barrier_nodf() {
     do_facet $facet sync
     local svc=${facet}_svc
     echo Replay barrier on ${!svc}
+    do_facet $facet $LCTL --device %${!svc} notransno
     do_facet $facet $LCTL --device %${!svc} readonly
+    do_facet $facet $LCTL mark "$facet REPLAY BARRIER on ${!svc}"
+    $LCTL mark "local REPLAY BARRIER on ${!svc}"
+}
+
+replay_barrier_nosync() {
+    local facet=$1    echo running=${running}
+    local svc=${facet}_svc
+    echo Replay barrier on ${!svc}
     do_facet $facet $LCTL --device %${!svc} notransno
+    do_facet $facet $LCTL --device %${!svc} readonly
     do_facet $facet $LCTL mark "$facet REPLAY BARRIER on ${!svc}"
     $LCTL mark "local REPLAY BARRIER on ${!svc}"
 }
@@ -786,7 +1216,7 @@ ost_evict_client() {
 
 fail() {
     facet_failover $* || error "failover: $?"
-    df $MOUNT || error "post-failover df: $?"
+    client_df || error "post-failover df: $?"
 }
 
 fail_nodf() {
@@ -799,9 +1229,9 @@ fail_abort() {
     stop $facet
     change_active $facet
     mount_facet $facet -o abort_recovery
-    df $MOUNT || echo "first df failed: $?"
+    client_df || echo "first df failed: $?"
     sleep 1
-    df $MOUNT || error "post-failover df: $?"
+    client_df || error "post-failover df: $?"
 }
 
 do_lmc() {
@@ -863,6 +1293,8 @@ declare -fx h2o2ib
 
 facet_host() {
     local facet=$1
+
+    [ "$facet" == client ] && echo -n $HOSTNAME && return
     varname=${facet}_HOST
     if [ -z "${!varname}" ]; then
         if [ "${facet:0:3}" == "ost" ]; then
@@ -900,22 +1332,29 @@ facet_active_host() {
 
 change_active() {
     local facet=$1
-    failover=${facet}failover
+    local failover=${facet}failover
     host=`facet_host $failover`
     [ -z "$host" ] && return
-    curactive=`facet_active $facet`
+    local curactive=`facet_active $facet`
     if [ -z "${curactive}" -o "$curactive" == "$failover" ] ; then
         eval export ${facet}active=$facet
     else
         eval export ${facet}active=$failover
     fi
     # save the active host for this facet
-    activevar=${facet}active
+    local activevar=${facet}active
     echo "$activevar=${!activevar}" > $TMP/$activevar
 }
 
 do_node() {
-    HOST=$1
+    local verbose=false
+    # do not stripe off hostname if verbose, bug 19215
+    if [ x$1 = x--verbose ]; then
+        shift
+        verbose=true
+    fi
+
+    local HOST=$1
     shift
     local myPDSH=$PDSH
     if [ "$HOST" = "$HOSTNAME" ]; then
@@ -934,12 +1373,22 @@ do_node() {
 	local command_status="$TMP/cs"
 	rsh $HOST ":> $command_status"
 	rsh $HOST "(PATH=\$PATH:$RLUSTRE/utils:$RLUSTRE/tests:/sbin:/usr/sbin;
-		    cd $RPWD; sh -c \"$@\") || 
+		    cd $RPWD; sh -c \"$@\") ||
 		    echo command failed >$command_status"
 	[ -n "$($myPDSH $HOST cat $command_status)" ] && return 1 || true
         return 0
     fi
-    $myPDSH $HOST "(PATH=\$PATH:$RLUSTRE/utils:$RLUSTRE/tests:/sbin:/usr/sbin; cd $RPWD; sh -c \"$@\")" | sed "s/^${HOST}: //"
+
+    if $verbose ; then
+        # print HOSTNAME for myPDSH="no_dsh"
+        if [[ $myPDSH = no_dsh ]]; then
+            $myPDSH $HOST "(PATH=\$PATH:$RLUSTRE/utils:$RLUSTRE/tests:/sbin:/usr/sbin; cd $RPWD; sh -c \"$@\")" | sed -e "s/^/${HOSTNAME}: /"
+        else
+            $myPDSH $HOST "(PATH=\$PATH:$RLUSTRE/utils:$RLUSTRE/tests:/sbin:/usr/sbin; cd $RPWD; sh -c \"$@\")"
+        fi
+    else
+        $myPDSH $HOST "(PATH=\$PATH:$RLUSTRE/utils:$RLUSTRE/tests:/sbin:/usr/sbin; cd $RPWD; sh -c \"$@\")" | sed "s/^${HOST}: //"
+    fi
     return ${PIPESTATUS[0]}
 }
 
@@ -948,11 +1397,22 @@ single_local_node () {
 }
 
 do_nodes() {
+    local verbose=false
+    # do not stripe off hostname if verbose, bug 19215
+    if [ x$1 = x--verbose ]; then
+        shift
+        verbose=true
+    fi
+
     local rnodes=$1
     shift
 
-    if $(single_local_node $rnodes); then 
-        do_node $rnodes $@
+    if $(single_local_node $rnodes); then
+        if $verbose; then
+           do_node --verbose $rnodes $@
+        else
+           do_node $rnodes $@
+        fi
         return $?
     fi
 
@@ -967,14 +1427,18 @@ do_nodes() {
         $myPDSH $rnodes $LCTL mark "$@" > /dev/null 2>&1 || :
     fi
 
-    $myPDSH $rnodes "(PATH=\$PATH:$RLUSTRE/utils:$RLUSTRE/tests:/sbin:/usr/sbin; cd $RPWD; sh -c \"$@\")" | sed -re "s/\w+:\s//g"
+    if $verbose ; then
+        $myPDSH $rnodes "(PATH=\$PATH:$RLUSTRE/utils:$RLUSTRE/tests:/sbin:/usr/sbin; cd $RPWD; sh -c \"$@\")"
+    else
+        $myPDSH $rnodes "(PATH=\$PATH:$RLUSTRE/utils:$RLUSTRE/tests:/sbin:/usr/sbin; cd $RPWD; sh -c \"$@\")" | sed -re "s/\w+:\s//g"
+    fi
     return ${PIPESTATUS[0]}
 }
 
 do_facet() {
-    facet=$1
+    local facet=$1
     shift
-    HOST=`facet_active_host $facet`
+    local HOST=`facet_active_host $facet`
     [ -z $HOST ] && echo No host defined for facet ${facet} && exit 1
     do_node $HOST "$@"
 }
@@ -1015,14 +1479,11 @@ stopall() {
         fail mds1
     fi
 
-    # assume client mount is local
-    grep " $MOUNT " /proc/mounts && zconf_umount $HOSTNAME $MOUNT $*
-    grep " $MOUNT2 " /proc/mounts && zconf_umount $HOSTNAME $MOUNT2 $*
+    local clients=$CLIENTS
+    [ -z $clients ] && clients=$(hostname)
 
-    if [ -n "$CLIENTS" ]; then
-            zconf_umount_clients $CLIENTS $MOUNT "$*" || true
-            [ -n "$MOUNT2" ] && zconf_umount_clients $CLIENTS $MOUNT2 "$*" || true
-    fi
+    zconf_umount_clients $clients $MOUNT "$*" || true
+    [ -n "$MOUNT2" ] && zconf_umount_clients $clients $MOUNT2 "$*" || true
 
     [ "$CLIENTONLY" ] && return
     # The add fn does rm ${facet}active file, this would be enough
@@ -1042,6 +1503,8 @@ stopall() {
 }
 
 cleanupall() {
+    nfs_client_mode && return
+
     stopall $*
     unload_modules
     cleanup_gss
@@ -1054,6 +1517,11 @@ mdsmkfsopts()
 }
 
 formatall() {
+    if [ "$IAMDIR" == "yes" ]; then
+        MDS_MKFS_OPTS="$MDS_MKFS_OPTS --iam-dir"
+        MDSn_MKFS_OPTS="$MDSn_MKFS_OPTS --iam-dir"
+    fi
+
     [ "$FSTYPE" ] && FSTYPE_OPT="--backfstype $FSTYPE"
 
     if [ ! -z $SEC ]; then
@@ -1066,7 +1534,11 @@ formatall() {
     # We need ldiskfs here, may as well load them all
     load_modules
     [ "$CLIENTONLY" ] && return
-    echo "Formatting mdts, osts"
+    echo Formatting mgs, mds, osts
+    if [[ $MDSDEV1 != $MGSDEV ]] || [[ $mds1_HOST != $mgs_HOST ]]; then
+        add mgs $mgs_MKFS_OPTS $FSTYPE_OPT --reformat $MGSDEV || exit 10
+    fi
+
     for num in `seq $MDSCOUNT`; do
         echo "Format mds$num: $(mdsdevname $num)"
         if $VERBOSE; then
@@ -1102,7 +1574,7 @@ switch_identity() {
     local num=$1
     local switch=$2
     local j=`expr $num - 1`
-    local MDT="`do_facet mds$num lctl get_param -N mdt.*MDT*$j | cut -d"." -f2 2>/dev/null || true`"
+    local MDT="`(do_facet mds$num lctl get_param -N mdt.*MDT*$j 2>/dev/null | cut -d"." -f2 2>/dev/null) || true`"
 
     if [ -z "$MDT" ]; then
         return 2
@@ -1131,26 +1603,43 @@ remount_client()
 	zconf_mount `hostname` $1 || error "mount failed"
 }
 
-set_obd_timeout() {
+writeconf_facet () {
     local facet=$1
-    local timeout=$2
+    local dev=$2
+
+    do_facet $facet "$TUNEFS --writeconf $dev"
+}
 
-    do_facet $facet lsmod | grep -q obdclass || \
-        do_facet $facet "modprobe obdclass"
+writeconf_all () {
+    for num in `seq $MDSCOUNT`; do
+        DEVNAME=$(mdsdevname $num)
+        writeconf_facet mds$num $DEVNAME
+    done
 
-    do_facet $facet "lctl set_param timeout=$timeout"
+    for num in `seq $OSTCOUNT`; do
+        DEVNAME=$(ostdevname $num)
+        writeconf_facet ost$num $DEVNAME
+    done
 }
 
 setupall() {
+    nfs_client_mode && return
+
+    sanity_mount_check ||
+        error "environments are insane!"
+
     load_modules
     init_gss
     if [ -z "$CLIENTONLY" ]; then
-        echo "Setup mdts, osts"
+        echo Setup mgs, mdt, osts
+        echo $WRITECONF | grep -q "writeconf" && \
+            writeconf_all
+        if [[ $mds1_HOST != $mgs_HOST ]] || [[ $MDSDEV1 != $MGSDEV ]]; then
+            start mgs $MGSDEV $mgs_MOUNT_OPTS
+        fi
+
         for num in `seq $MDSCOUNT`; do
             DEVNAME=$(mdsdevname $num)
-            echo $REFORMAT | grep -q "reformat" \
-            || do_facet mds$num "$TUNEFS --writeconf $DEVNAME"
-            set_obd_timeout mds$num $TIMEOUT
             start mds$num $DEVNAME $MDS_MOUNT_OPTS
 
             # We started mds, now we should set failover variables properly.
@@ -1166,7 +1655,6 @@ setupall() {
         done
         for num in `seq $OSTCOUNT`; do
             DEVNAME=$(ostdevname $num)
-            set_obd_timeout ost$num $TIMEOUT
             start ost$num $DEVNAME $OST_MOUNT_OPTS
 
             # We started ost$num, now we should set ost${num}failover variable properly.
@@ -1178,6 +1666,10 @@ setupall() {
 
         done
     fi
+    # wait a while to allow sptlrpc configuration be propogated to targets,
+    # only needed when mounting new target devices.
+    $GSS && sleep 10
+
     [ "$DAEMONFILE" ] && $LCTL debug_daemon start $DAEMONFILE $DAEMONSIZE
     mount_client $MOUNT
     [ -n "$CLIENTS" ] && zconf_mount_clients $CLIENTS $MOUNT
@@ -1187,6 +1679,8 @@ setupall() {
         [ -n "$CLIENTS" ] && zconf_mount_clients $CLIENTS $MOUNT2
     fi
 
+    init_param_vars
+
     # by remounting mdt before ost, initial connect from mdt to ost might
     # timeout because ost is not ready yet. wait some time to its fully
     # recovery. initial obd_connect timeout is 5s; in GSS case it's preceeded
@@ -1203,14 +1697,192 @@ mounted_lustre_filesystems() {
 	awk '($3 ~ "lustre" && $1 ~ ":") { print $2 }' /proc/mounts
 }
 
+init_facet_vars () {
+    [ "$CLIENTONLY" ] && return 0
+    local facet=$1
+    shift
+    local device=$1
+
+    shift
+
+    eval export ${facet}_dev=${device}
+    eval export ${facet}_opt=\"$@\"
+
+    local dev=${facet}_dev
+    local label=$(do_facet ${facet} "$E2LABEL ${!dev}")
+    [ -z "$label" ] && echo no label for ${!dev} && exit 1
+
+    eval export ${facet}_svc=${label}
+
+    local varname=${facet}failover_HOST
+    if [ -z "${!varname}" ]; then
+       eval $varname=$(facet_host $facet) 
+    fi
+
+    # ${facet}failover_dev is set in cfg file
+    varname=${facet}failover_dev
+    if [ -n "${!varname}" ] ; then
+        eval export ${facet}failover_dev=${!varname}
+    else
+        eval export ${facet}failover_dev=$device
+    fi
+}
+
+init_facets_vars () {
+    local DEVNAME
+
+    if ! remote_mds_nodsh; then 
+        for num in `seq $MDSCOUNT`; do
+            DEVNAME=`mdsdevname $num`
+            init_facet_vars mds$num $DEVNAME $MDS_MOUNT_OPTS
+        done
+    fi
+
+    remote_ost_nodsh && return
+
+    for num in `seq $OSTCOUNT`; do
+        DEVNAME=`ostdevname $num`
+        init_facet_vars ost$num $DEVNAME $OST_MOUNT_OPTS
+    done
+}
+
+osc_ensure_active () {
+    local facet=$1
+    local type=$2
+    local timeout=$3
+    local period=0
+
+    while [ $period -lt $timeout ]; do
+        count=$(do_facet $facet "lctl dl | grep '${FSNAME}-OST.*-osc-${type}' | grep ' IN ' 2>/dev/null | wc -l")
+        if [ $count -eq 0 ]; then
+            break
+        fi
+
+        echo "There are $count OST are inactive, wait $period seconds, and try again"
+        sleep 3
+        period=$((period+3))
+    done
+
+    [ $period -lt $timeout ] || log "$count OST are inactive after $timeout seconds, give up"
+}
+
+som_check() {
+    SOM_ENABLED=$(do_facet $SINGLEMDS "$LCTL get_param mdt.*.som" | awk -F= ' {print $2}' | head -n 1)
+    echo $SOM_ENABLED
+}
+
+init_param_vars () {
+    if ! remote_ost_nodsh && ! remote_mds_nodsh; then
+        export MDSVER=$(do_facet $SINGLEMDS "lctl get_param version" | cut -d. -f1,2)
+        export OSTVER=$(do_facet ost1 "lctl get_param version" | cut -d. -f1,2)
+        export CLIVER=$(lctl get_param version | cut -d. -f 1,2)
+    fi
+
+    remote_mds_nodsh ||
+        TIMEOUT=$(do_facet $SINGLEMDS "lctl get_param -n timeout")
+
+    log "Using TIMEOUT=$TIMEOUT"
+
+    osc_ensure_active $SINGLEMDS M $TIMEOUT
+    osc_ensure_active client c $TIMEOUT
+
+    if [ x"$(som_check)" = x"enabled" ]; then
+        ENABLE_QUOTA=""
+    fi
+    if [ "$ENABLE_QUOTA" ]; then
+        setup_quota $MOUNT  || return 2
+    fi
+}
+
+nfs_client_mode () {
+    if [ "$NFSCLIENT" ]; then
+        echo "NFSCLIENT mode: setup, cleanup, check config skipped"
+        local clients=$CLIENTS
+        [ -z $clients ] && clients=$(hostname)
+
+        # FIXME: remove hostname when 19215 fixed
+        do_nodes $clients "echo \\\$(hostname); grep ' '$MOUNT' ' /proc/mounts"
+        declare -a nfsexport=(`grep ' '$MOUNT' ' /proc/mounts | awk '{print $1}' | awk -F: '{print $1 " "  $2}'`)
+        do_nodes ${nfsexport[0]} "echo \\\$(hostname); df -T  ${nfsexport[1]}"
+        return
+    fi
+    return 1
+}
+
+check_config () {
+    nfs_client_mode && return
+
+    local mntpt=$1
+
+    local mounted=$(mount | grep " $mntpt ")
+    if [ "$CLIENTONLY" ]; then
+        # bug 18021
+        # CLIENTONLY should not depend on *_HOST settings
+        local mgc=$($LCTL device_list | awk '/MGC/ {print $4}')
+        # in theory someone could create a new,
+        # client-only config file that assumed lustre was already
+        # configured and didn't set the MGSNID. If MGSNID is not set,
+        # then we should use the mgs nid currently being used 
+        # as the default value. bug 18021
+        [[ x$MGSNID = x ]] &&
+            MGSNID=${mgc//MGC/}
+
+        if [[ x$mgc != xMGC$MGSNID ]]; then
+            if [ "$mgs_HOST" ]; then
+                local mgc_ip=$(ping -q -c1 -w1 $mgs_HOST | grep PING | awk '{print $3}' | sed -e "s/(//g" -e "s/)//g")
+                [[ x$mgc = xMGC$mgc_ip@$NETTYPE ]] ||
+                    error_exit "MGSNID=$MGSNID, mounted: $mounted, MGC : $mgc"
+            fi
+        fi
+        return 0
+    fi
+
+    local myMGS_host=$mgs_HOST   
+    if [ "$NETTYPE" = "ptl" ]; then
+        myMGS_host=$(h2ptl $mgs_HOST | sed -e s/@ptl//) 
+    fi
+
+    echo Checking config lustre mounted on $mntpt
+    local mgshost=$(mount | grep " $mntpt " | awk -F@ '{print $1}')
+    mgshost=$(echo $mgshost | awk -F: '{print $1}')
+
+#    if [ "$mgshost" != "$myMGS_host" ]; then
+#            error_exit "Bad config file: lustre is mounted with mgs $mgshost, but mgs_HOST=$mgs_HOST, NETTYPE=$NETTYPE
+#                   Please use correct config or set mds_HOST correctly!"
+#    fi
+
+    sanity_mount_check ||
+        error "environments are insane!"
+}
+
+check_timeout () {
+    local mdstimeout=$(do_facet $SINGLEMDS "lctl get_param -n timeout")
+    local cltimeout=$(lctl get_param -n timeout)
+    if [ $mdstimeout -ne $TIMEOUT ] || [ $mdstimeout -ne $cltimeout ]; then
+        error "timeouts are wrong! mds: $mdstimeout, client: $cltimeout, TIMEOUT=$TIMEOUT"
+        return 1
+    fi
+}
+
 check_and_setup_lustre() {
-    MOUNTED="`mounted_lustre_filesystems`"
-    if [ -z "$MOUNTED" ]; then
+    nfs_client_mode && return
+
+    local MOUNTED=$(mounted_lustre_filesystems)
+    if [ -z "$MOUNTED" ] || ! $(echo $MOUNTED | grep -w -q $MOUNT); then
         [ "$REFORMAT" ] && formatall
         setupall
-        MOUNTED="`mounted_lustre_filesystems`"
+        MOUNTED=$(mounted_lustre_filesystems | head -1)
         [ -z "$MOUNTED" ] && error "NAME=$NAME not mounted"
         export I_MOUNTED=yes
+    else
+        check_config $MOUNT
+        init_facets_vars
+        init_param_vars
+
+        do_nodes $(comma_list $(nodes_list)) "lctl set_param debug=\\\"$PTLDEBUG\\\";
+            lctl set_param subsystem_debug=\\\"${SUBSYSTEM# }\\\";
+            lctl set_param debug_mb=${DEBUG_SIZE};
+            sync"
     fi
     if [ "$ONLY" == "setup" ]; then
         exit 0
@@ -1231,6 +1903,7 @@ cleanup_and_setup_lustre() {
 check_and_cleanup_lustre() {
     if [ "`mount | grep $MOUNT`" ]; then
         [ -n "$DIR" ] && rm -rf $DIR/[Rdfs][0-9]*
+        [ "$ENABLE_QUOTA" ] && restore_quota_type || true
     fi
     if [ "$I_MOUNTED" = "yes" ]; then
         cleanupall -f || error "cleanup failed"
@@ -1246,8 +1919,7 @@ check_network() {
     local WAIT=0
     local MAX=$2
     while [ $NETWORK -eq 0 ]; do
-        ping -c 1 -w 3 $1 > /dev/null
-        if [ $? -eq 0 ]; then
+        if ping -c 1 -w 3 $1 > /dev/null; then
             NETWORK=1
         else
             WAIT=$((WAIT + 5))
@@ -1277,26 +1949,51 @@ comma_list() {
     echo "$*" | tr -s " " "\n" | sort -b -u | tr "\n" " " | sed 's/ \([^$]\)/,\1/g'
 }
 
+# list, excluded are the comma separated lists
+exclude_items_from_list () {
+    local list=$1
+    local excluded=$2
+    local item
+
+    list=${list//,/ }
+    for item in ${excluded//,/ }; do
+        list=$(echo " $list " | sed -re "s/\s+$item\s+/ /g")
+    done
+    echo $(comma_list $list) 
+}
+
+# list, expand  are the comma separated lists
+expand_list () {
+    local list=${1//,/ }
+    local expand=${2//,/ }
+    local expanded=
+
+    expanded=$(for i in $list $expand; do echo $i; done | sort -u)
+    echo $(comma_list $expanded)
+}
+
 absolute_path() {
     (cd `dirname $1`; echo $PWD/`basename $1`)
 }
 
-##################################
-# Adaptive Timeouts funcs
+get_facets () {
+    local name=$(echo $1 | tr "[:upper:]" "[:lower:]")
+    local type=$(echo $1 | tr "[:lower:]" "[:upper:]")
 
-at_is_valid() {
-    if [ -z "$AT_MAX_PATH" ]; then
-        AT_MAX_PATH=$(do_facet $SINGLEMDS "find /sys/ -name at_max")
-        [ -z "$AT_MAX_PATH" ] && echo "missing /sys/.../at_max " && return 1
-    fi
-    return 0
+    local list=""
+    local count=${type}COUNT
+    for ((i=1; i<=${!count}; i++)) do
+        list="$list ${name}$i"
+    done
+    echo $(comma_list $list)
 }
 
-at_is_enabled() {
-    at_is_valid || error "invalid call"
+##################################
+# Adaptive Timeouts funcs
 
+at_is_enabled() {
     # only check mds, we assume at_max is the same on all nodes
-    local at_max=$(do_facet $SINGLEMDS "cat $AT_MAX_PATH")
+    local at_max=$(do_facet $SINGLEMDS "lctl get_param -n at_max")
     if [ $at_max -eq 0 ]; then
         return 1
     else
@@ -1307,13 +2004,11 @@ at_is_enabled() {
 at_max_get() {
     local facet=$1
 
-    at_is_valid || error "invalid call"
-
     # suppose that all ost-s has the same at_max set
     if [ $facet == "ost" ]; then
-        do_facet ost1 "cat $AT_MAX_PATH"
+	do_facet ost1 "lctl get_param -n at_max"
     else
-        do_facet $facet "cat $AT_MAX_PATH"
+	do_facet $facet "lctl get_param -n at_max"
     fi
 }
 
@@ -1321,20 +2016,19 @@ at_max_set() {
     local at_max=$1
     shift
 
-    at_is_valid || error "invalid call"
-
     local facet
     for facet in $@; do
         if [ $facet == "ost" ]; then
             for i in `seq $OSTCOUNT`; do
-                do_facet ost$i "echo $at_max > $AT_MAX_PATH"
+		do_facet ost$i "lctl set_param at_max=$at_max"
+
             done
         elif [ $facet == "mds" ]; then
             for i in `seq $MDSCOUNT`; do
-                do_facet mds$i "echo $at_max > $AT_MAX_PATH"
+		do_facet mds$i "lctl set_param at_max=$at_max"
             done
         else
-            do_facet $facet "echo $at_max > $AT_MAX_PATH"
+	    do_facet $facet "lctl set_param at_max=$at_max"
         fi
     done
 }
@@ -1415,12 +2109,7 @@ clear_failloc() {
 }
 
 set_nodes_failloc () {
-    local nodes=$1
-    local node
-
-    for node in $nodes ; do
-        do_node $node lctl set_param fail_loc=$2
-    done
+    do_nodes $(comma_list $1)  lctl set_param fail_loc=$2
 }
 
 cancel_lru_locks() {
@@ -1458,6 +2147,10 @@ pgcache_empty() {
             return 1
         fi
     done
+    if [[ $MDSDEV1 != $MGSDEV ]]; then
+        stop mgs 
+    fi
+
     return 0
 }
 
@@ -1482,12 +2175,10 @@ error_noexit() {
     ERRLOG=$TMP/lustre_${TESTSUITE}_${TESTNAME}.$(date +%s)
     echo "Dumping lctl log to $ERRLOG"
     # We need to dump the logs on all nodes
-    local NODES=$(nodes_list)
-    for NODE in $NODES; do
-        do_node $NODE $LCTL dk $ERRLOG
-    done
+    do_nodes $(comma_list $(nodes_list)) $NODE $LCTL dk $ERRLOG
     debugrestore
     [ "$TESTSUITELOG" ] && echo "$0: ${TYPE}: $TESTNAME $@" >> $TESTSUITELOG
+    TEST_FAILED=true
 }
 
 error() {
@@ -1510,9 +2201,10 @@ error_ignore() {
 }
 
 skip () {
-	log " SKIP: ${TESTSUITE} ${TESTNAME} $@"
-	[ "$TESTSUITELOG" ] && \
-		echo "${TESTSUITE}: SKIP: $TESTNAME $@" >> $TESTSUITELOG || true
+    echo
+    log " SKIP: ${TESTSUITE} ${TESTNAME} $@"
+    [ "$TESTSUITELOG" ] && \
+        echo "${TESTSUITE}: SKIP: $TESTNAME $@" >> $TESTSUITELOG || true
 }
 
 build_test_filter() {
@@ -1535,14 +2227,12 @@ build_test_filter() {
    	done
 }
 
-_basetest() {
-    echo $*
-}
-
 basetest() {
-    IFS=abcdefghijklmnopqrstuvwxyz _basetest $1
+    echo ${1%%[a-z]*}
 }
 
+# print a newline if the last test was skipped
+export LAST_SKIPPED=
 run_test() {
     assert_DIR
 
@@ -1550,38 +2240,46 @@ run_test() {
     if [ ! -z "$ONLY" ]; then
         testname=ONLY_$1
         if [ ${!testname}x != x ]; then
+            [ "$LAST_SKIPPED" ] && echo "" && LAST_SKIPPED=
             run_one $1 "$2"
             return $?
         fi
         testname=ONLY_$base
         if [ ${!testname}x != x ]; then
+            [ "$LAST_SKIPPED" ] && echo "" && LAST_SKIPPED=
             run_one $1 "$2"
             return $?
         fi
+        LAST_SKIPPED="y"
         echo -n "."
         return 0
     fi
     testname=EXCEPT_$1
     if [ ${!testname}x != x ]; then
+        LAST_SKIPPED="y"
         TESTNAME=test_$1 skip "skipping excluded test $1"
         return 0
     fi
     testname=EXCEPT_$base
     if [ ${!testname}x != x ]; then
+        LAST_SKIPPED="y"
         TESTNAME=test_$1 skip "skipping excluded test $1 (base $base)"
         return 0
     fi
     testname=EXCEPT_SLOW_$1
     if [ ${!testname}x != x ]; then
+        LAST_SKIPPED="y"
         TESTNAME=test_$1 skip "skipping SLOW test $1"
         return 0
     fi
     testname=EXCEPT_SLOW_$base
     if [ ${!testname}x != x ]; then
+        LAST_SKIPPED="y"
         TESTNAME=test_$1 skip "skipping SLOW test $1 (base $base)"
         return 0
     fi
 
+    LAST_SKIPPED=
     run_one $1 "$2"
 
     return $?
@@ -1601,7 +2299,7 @@ log() {
     lsmod | grep lnet > /dev/null || load_modules
 
     local MSG="$*"
-    # Get rif of '
+    # Get rid of '
     MSG=${MSG//\'/\\\'}
     MSG=${MSG//\(/\\\(}
     MSG=${MSG//\)/\\\)}
@@ -1610,10 +2308,7 @@ log() {
     MSG=${MSG//\>/\\\>}
     MSG=${MSG//\</\\\<}
     MSG=${MSG//\//\\\/}
-    local NODES=$(nodes_list)
-    for NODE in $NODES; do
-        do_node $NODE $LCTL mark "$MSG" 2> /dev/null || true
-    done
+    do_nodes $(comma_list $(nodes_list)) $LCTL mark "$MSG" 2> /dev/null || true
 }
 
 trace() {
@@ -1625,7 +2320,8 @@ trace() {
 }
 
 pass() {
-    echo PASS $@
+    $TEST_FAILED && echo -n "FAIL " || echo -n "PASS " 
+    echo $@
 }
 
 check_mds() {
@@ -1635,12 +2331,9 @@ check_mds() {
 }
 
 reset_fail_loc () {
-    local myNODES=$(nodes_list)
-    local NODE
-
-    for NODE in $myNODES; do
-        do_node $NODE "lctl set_param fail_loc=0 2>/dev/null || true"
-    done
+    echo -n "Resetting fail_loc on all nodes..."
+    do_nodes $(comma_list $(nodes_list)) "lctl set_param -n fail_loc=0 2>/dev/null || true"
+    echo done.
 }
 
 run_one() {
@@ -1648,13 +2341,16 @@ run_one() {
     message=$2
     tfile=f${testnum}
     export tdir=d0.${TESTSUITE}/d${base}
+
     local SAVE_UMASK=`umask`
     umask 0022
 
-    BEFORE=`date +%s`
-    log "== test $testnum: $message ============ `date +%H:%M:%S` ($BEFORE)"
+    local BEFORE=`date +%s`
+    echo
+    log "== test $testnum: $message == `date +%H:%M:%S` ($BEFORE)"
     #check_mds
     export TESTNAME=test_$testnum
+    TEST_FAILED=false
     test_${testnum} || error "test_$testnum failed with $?"
     #check_mds
     cd $SAVE_PWD
@@ -1663,6 +2359,7 @@ run_one() {
     check_catastrophe || error "LBUG/LASSERT detected"
     ps auxww | grep -v grep | grep -q multiop && error "multiop still running"
     pass "($((`date +%s` - $BEFORE))s)"
+    TEST_FAILED=false
     unset TESTNAME
     unset tdir
     umask $SAVE_UMASK
@@ -1734,27 +2431,48 @@ osc_to_ost()
     echo $ost
 }
 
+remote_node () {
+    local node=$1
+    [ "$node" != "$(hostname)" ]
+}
+
 remote_mds ()
 {
-    local var=${SINGLEMDS}_HOST
-    [ "${!var}" != "$(hostname)" ]
+    local node
+    for node in $(mdts_nodes); do
+        remote_node $node && return 0
+    done
+    return 1
 }
 
 remote_mds_nodsh()
 {
+    [ "$CLIENTONLY" ] && return 0 || true
     remote_mds && [ "$PDSH" = "no_dsh" -o -z "$PDSH" -o -z "$mds_HOST" ]
 }
 
 remote_ost ()
 {
-    [ "$ost_HOST" != "$(hostname)" ]
+    local node
+    for node in $(osts_nodes) ; do
+        remote_node $node && return 0
+    done
+    return 1
 }
 
 remote_ost_nodsh()
 {
+    [ "$CLIENTONLY" ] && return 0 || true 
     remote_ost && [ "$PDSH" = "no_dsh" -o -z "$PDSH" -o -z "$ost_HOST" ]
 }
 
+remote_mgs_nodsh()
+{
+    local MGS 
+    MGS=$(facet_host mgs)
+    remote_node $MGS && [ "$PDSH" = "no_dsh" -o -z "$PDSH" -o -z "$ost_HOST" ]
+}
+
 mdts_nodes () {
     local MDSNODES
     local NODES_sort
@@ -1766,6 +2484,10 @@ mdts_nodes () {
     echo $NODES_sort
 }
 
+remote_servers () {
+    remote_ost && remote_mds
+}
+
 osts_nodes () {
     local OSTNODES=$(facet_host ost1)
     local NODES_sort
@@ -1799,7 +2521,7 @@ nodes_list () {
 remote_nodes_list () {
     local rnodes=$(nodes_list)
     rnodes=$(echo " $rnodes " | sed -re "s/\s+$HOSTNAME\s+/ /g")
-    echo $rnodes 
+    echo $rnodes
 }
 
 init_clients_lists () {
@@ -1812,7 +2534,7 @@ init_clients_lists () {
     local clients="$SINGLECLIENT $HOSTNAME $rclients"
 
     # Sanity check: exclude the dup entries from CLIENTS
-    # for those configs which has SINGLCLIENT set to local client 
+    # for those configs which has SINGLCLIENT set to local client
     clients=$(for i in $clients; do echo $i; done | sort -u)
 
     CLIENTS=`comma_list $clients`
@@ -1825,14 +2547,30 @@ init_clients_lists () {
     CLIENTCOUNT=$((${#remoteclients[@]} + 1))
 }
 
+get_random_entry () {
+    local rnodes=$1
+
+    rnodes=${rnodes//,/ }
+
+    local -a nodes=($rnodes)
+    local num=${#nodes[@]} 
+    local i=$((RANDOM * num * 2 / 65536))
+
+    echo ${nodes[i]}
+}
+
 is_patchless ()
 {
     lctl get_param version | grep -q patchless
 }
 
+check_versions () {
+    [ "$MDSVER" = "$CLIVER" -a "$OSTVER" = "$CLIVER" ]
+}
+
 get_node_count() {
-   local nodes="$@"
-   echo $nodes | wc -w || true
+    local nodes="$@"
+    echo $nodes | wc -w || true
 }
 
 mixed_ost_devs () {
@@ -1841,6 +2579,12 @@ mixed_ost_devs () {
     [ ! "$OSTCOUNT" = "$osscount" ]
 }
 
+mixed_mdt_devs () {
+    local nodes=$(mdts_nodes)
+    local mdtcount=$(get_node_count "$nodes")
+    [ ! "$MDSCOUNT" = "$mdtcount" ]
+}
+
 generate_machine_file() {
     local nodes=${1//,/ }
     local machinefile=$2
@@ -1859,8 +2603,9 @@ get_stripe () {
 
 check_runas_id_ret() {
     local myRC=0
-    local myRUNAS_ID=$1
-    shift
+    local myRUNAS_UID=$1
+    local myRUNAS_GID=$2
+    shift 2
     local myRUNAS=$@
     if [ -z "$myRUNAS" ]; then
         error_exit "myRUNAS command must be specified for check_runas_id"
@@ -1871,20 +2616,50 @@ check_runas_id_ret() {
     fi
     mkdir $DIR/d0_runas_test
     chmod 0755 $DIR
-    chown $myRUNAS_ID:$myRUNAS_ID $DIR/d0_runas_test
+    chown $myRUNAS_UID:$myRUNAS_GID $DIR/d0_runas_test
     $myRUNAS touch $DIR/d0_runas_test/f$$ || myRC=$?
     rm -rf $DIR/d0_runas_test
     return $myRC
 }
 
 check_runas_id() {
-    local myRUNAS_ID=$1
-    shift
+    local myRUNAS_UID=$1
+    local myRUNAS_GID=$2
+    shift 2
     local myRUNAS=$@
-    check_runas_id_ret $myRUNAS_ID $myRUNAS || \
-        error "unable to write to $DIR/d0_runas_test as UID $myRUNAS_ID. 
-        Please set RUNAS_ID to some UID which exists on MDS and client or 
-        add user $myRUNAS_ID:$myRUNAS_ID on these nodes."
+    check_runas_id_ret $myRUNAS_UID $myRUNAS_GID $myRUNAS || \
+        error "unable to write to $DIR/d0_runas_test as UID $myRUNAS_UID.
+        Please set RUNAS_ID to some UID which exists on MDS and client or
+        add user $myRUNAS_UID:$myRUNAS_GID on these nodes."
+}
+
+# obtain the UID/GID for MPI_USER
+get_mpiuser_id() {
+    local mpi_user=$1
+
+    MPI_USER_UID=$(do_facet client "getent passwd $mpi_user | cut -d: -f3;
+exit \\\${PIPESTATUS[0]}") || error_exit "failed to get the UID for $mpi_user"
+
+    MPI_USER_GID=$(do_facet client "getent passwd $mpi_user | cut -d: -f4;
+exit \\\${PIPESTATUS[0]}") || error_exit "failed to get the GID for $mpi_user"
+}
+
+# obtain and cache Kerberos ticket-granting ticket
+refresh_krb5_tgt() {
+    local myRUNAS_UID=$1
+    local myRUNAS_GID=$2
+    shift 2
+    local myRUNAS=$@
+    if [ -z "$myRUNAS" ]; then
+        error_exit "myRUNAS command must be specified for refresh_krb5_tgt"
+    fi
+
+    CLIENTS=${CLIENTS:-$HOSTNAME}
+    do_nodes $CLIENTS "set -x
+if ! $myRUNAS krb5_login.sh; then
+    echo "Failed to refresh Krb5 TGT for UID/GID $myRUNAS_UID/$myRUNAS_GID."
+    exit 1
+fi"
 }
 
 # Run multiop in the background, but wait for it to print
@@ -1916,25 +2691,22 @@ multiop_bg_pause() {
     return 0
 }
 
-check_rate() {
-    local OP=$1
-    local TARGET_RATE=$2
-    local NUM_CLIENTS=$3
-    local LOG=$4
+do_and_time () {
+    local cmd=$1
+    local rc
+
+    SECONDS=0
+    eval '$cmd'
+    
+    [ ${PIPESTATUS[0]} -eq 0 ] || rc=1
 
-    local RATE=$(awk '/^Rate: [0-9\.]+ '"${OP}"'s\/sec/ { print $2}' ${LOG})
+    echo $SECONDS
+    return $rc
+}
 
-    # We need to use bc since the rate is a floating point number
-    local RES=$(echo "${RATE} < ${TARGET_RATE}" | bc -l )
-    if [ ${RES} -eq 0 ]; then
-        echo "Success: ${RATE} ${OP}s/sec met target rate" \
-             "${TARGET_RATE} ${OP}s/sec for ${NUM_CLIENTS} client(s)."
-        return 0
-    else
-        echo "Failure: ${RATE} ${OP}s/sec did not meet target rate" \
-             "${TARGET_RATE} ${OP}s/sec for ${NUM_CLIENTS} client(s)."
-        return 1
-    fi
+inodes_available () {
+    local IFree=$($LFS df -i $MOUNT | grep ^$FSNAME | awk '{print $4}' | sort -un | head -1) || return 1
+    echo $IFree
 }
 
 # reset llite stat counters
@@ -1949,11 +2721,24 @@ calc_llite_stats() {
         echo $res
 }
 
+# reset osc stat counters
+clear_osc_stats(){
+        lctl set_param -n osc.*.osc_stats 0
+}
+
+# sum osc stat items
+calc_osc_stats() {
+        local res=$(lctl get_param -n osc.*.osc_stats |
+                    awk 'BEGIN {s = 0} END {print s} /^'"$1"'/ {s += $2}')
+        echo $res
+}
+
 calc_sum () {
         awk 'BEGIN {s = 0}; {s += $1}; END {print s}'
 }
 
 calc_osc_kbytes () {
+        df $MOUNT > /dev/null
         $LCTL get_param -n osc.*[oO][sS][cC][-_][0-9a-f]*.$1 | calc_sum
 }
 
@@ -1961,7 +2746,7 @@ calc_osc_kbytes () {
 # generate a stream of formatted strings (<node> <param name>=<param value>)
 save_lustre_params() {
         local s
-        do_node $1 "lctl get_param $2" | while read s; do echo "$1 $s"; done
+        do_nodes --verbose $1 "lctl get_param $2 | while read s; do echo \\\$s; done"
 }
 
 # restore lustre parameters from input stream, produces by save_lustre_params
@@ -1970,16 +2755,162 @@ restore_lustre_params() {
         local name
         local val
         while IFS=" =" read node name val; do
-                do_node $node "lctl set_param -n $name $val"
+                do_node ${node//:/} "lctl set_param -n $name $val"
         done
 }
 
-check_catastrophe () {
-    local rnodes=$(comma_list $(remote_nodes_list))
+check_catastrophe() {
+    local rnodes=${1:-$(comma_list $(remote_nodes_list))}
+    local C=$CATASTROPHE
+    [ -f $C ] && [ $(cat $C) -ne 0 ] && return 1
 
-    [ -f $CATASTROPHE ] && [ `cat $CATASTROPHE` -ne 0 ] && return 1
     if [ $rnodes ]; then
-        do_nodes $rnodes "[ -f $CATASTROPHE ] && { [ \`cat $CATASTROPHE\` -eq 0 ] || false; } || true"
+        do_nodes $rnodes "rc=\\\$([ -f $C ] && echo \\\$(< $C) || echo 0);
+if [ \\\$rc -ne 0 ]; then echo \\\$(hostname): \\\$rc; fi
+exit \\\$rc;"
     fi 
 }
 
+# $1 node
+# $2 file
+# $3 $RUNAS
+get_stripe_info() {
+	local tmp_file
+
+	stripe_size=0
+	stripe_count=0
+	stripe_index=0
+	tmp_file=$(mktemp)
+
+	do_facet $1 $3 lfs getstripe -v $2 > $tmp_file
+
+	stripe_size=`awk '$1 ~ /size/ {print $2}' $tmp_file`
+	stripe_count=`awk '$1 ~ /count/ {print $2}' $tmp_file`
+	stripe_index=`awk '$1 ~ /stripe_offset/ {print $2}' $tmp_file`
+	rm -f $tmp_file
+}
+
+# CMD: determine mds index where directory inode presents
+get_mds_dir () {
+    local dir=$1
+    local file=$dir/f0.get_mds_dir_tmpfile
+
+    rm -f $file
+    sleep 1
+    local iused=$(lfs df -i $dir | grep MDT | awk '{print $3}')
+    local -a oldused=($iused)
+
+    touch $file
+    sleep 1
+    iused=$(lfs df -i $dir | grep MDT | awk '{print $3}')
+    local -a newused=($iused)
+
+    local num=0
+    for ((i=0; i<${#newused[@]}; i++)); do
+         if [ ${oldused[$i]} -lt ${newused[$i]} ];  then
+             echo $(( i + 1 ))
+             rm -f $file
+             return 0
+         fi
+    done
+    error "mdt-s : inodes count OLD ${oldused[@]} NEW ${newused[@]}"
+}
+
+mdsrate_cleanup () {
+    mpi_run -np $1 -machinefile $2 ${MDSRATE} --unlink --nfiles $3 --dir $4 --filefmt $5 $6
+}
+
+delayed_recovery_enabled () {
+    local var=${SINGLEMDS}_svc
+    do_facet $SINGLEMDS lctl get_param -n mdd.${!var}.stale_export_age > /dev/null 2>&1
+}
+
+########################
+convert_facet2name() {
+    case "$1" in
+        "ost" ) echo "OST0000" ;;
+        "ost1") echo "OST0000" ;;
+        "ost2") echo "OST0001" ;;
+        "ost3") echo "OST0002" ;;
+        "ost4") echo "OST0003" ;;
+        "ost5") echo "OST0004" ;;
+        *) error "unknown facet!" ;;
+    esac
+}
+
+get_clientosc_proc_path() {
+    local ost=$1
+
+    echo "{$1}-osc-*"
+}
+
+get_lustre_version () {
+    local node=${1:-"mds"}    
+    do_facet $node $LCTL get_param -n version |  awk '/^lustre:/ {print $2}'
+}
+
+get_mds_version_major () {
+    local version=$(get_lustre_version mds)
+    echo $version | awk -F. '{print $1}'
+}
+
+get_mds_version_minor () {
+    local version=$(get_lustre_version mds)
+    echo $version | awk -F. '{print $2}'
+}
+
+get_mdtosc_proc_path() {
+    local ost=$1
+    local major=$(get_mds_version_major)
+    local minor=$(get_mds_version_minor)
+    if [ $major -le 1 -a $minor -le 8 ] ; then
+        echo "${ost}-osc"
+    else
+        echo "${ost}-osc-MDT0000"
+    fi
+}
+
+get_osc_import_name() {
+    local node=$1
+    local ost=$2
+    local name=$(convert_facet2name $ost)
+
+    if [ "$node" == "mds" ]; then
+        get_mdtosc_proc_path $name
+        return 0
+    fi
+
+    get_clientosc_proc_path $name
+    return 0
+}
+
+wait_osc_import_state() {
+    local node=$1
+    local ost_facet=$2
+    local expected=$3
+    local ost=$(get_osc_import_name $node $ost_facet)
+    local CONN_PROC
+    local CONN_STATE
+    local i=0
+
+    CONN_PROC="osc.${FSNAME}-${ost}.ost_server_uuid"
+    CONN_STATE=$(do_facet $node lctl get_param -n $CONN_PROC 2>/dev/null | cut -f2)
+    while [ "${CONN_STATE}" != "${expected}" ]; do
+        if [ "${expected}" == "DISCONN" ]; then 
+            # for disconn we can check after proc entry is removed
+            [ "x${CONN_STATE}" == "x" ] && return 0
+            #  with AT we can have connect request timeout ~ reconnect timeout
+            # and test can't see real disconnect
+            [ "${CONN_STATE}" == "CONNECTING" ] && return 0
+        fi
+        # disconnect rpc should be wait not more obd_timeout
+        [ $i -ge $(($TIMEOUT * 3 / 2)) ] && \
+            error "can't put import for ${ost}(${ost_facet}) into ${expected} state" && return 1
+        sleep 1
+        CONN_STATE=$(do_facet $node lctl get_param -n $CONN_PROC 2>/dev/null | cut -f2)
+        i=$(($i + 1))
+    done
+
+    log "${ost_facet} now in ${CONN_STATE} state"
+    return 0
+}