lustre/scripts/lustrefs

   1 #!/bin/bash
   2 #
   3 # lustrefs      Mount Lustre filesystems.
   4 #
   5 # Authors:      Jacob Berkman <jacob@clusterfs.com>
   6 #
   7 # Based on the netfs script:
   8 #
   9 # Authors:      Bill Nottingham <notting@redhat.com>
  10 #               Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
  11 #
  12 # chkconfig: 345 26 74
  13 # description: Mounts and unmounts all Lustre mount points.
  14 #
  15 ### BEGIN INIT INFO
  16 # Provides: lustrefs
  17 # Required-Start: $network
  18 # Required-Stop: $network
  19 # Should-Start:
  20 # Should-Stop:
  21 # Default-Start: 3 4 5
  22 # Default-Stop: 0 1 2 6
  23 # Short-Description: Mounts and unmounts all Lustre mount points.
  24 ### END INIT INFO
  25 ## Provides: $local_fs $remote_fs
  26
  27 # Source function library.
  28 if [ -f /etc/init.d/functions ]; then
  29    . /etc/init.d/functions
  30 fi
  31
  32 # Source networking configuration.
  33 if [ -f /etc/sysconfig/network ]; then
  34    . /etc/sysconfig/network
  35 fi
  36
  37 # Source lsb-functions.
  38 if [ -f /lib/lsb/init-functions ]; then
  39    . /lib/lsb/init-functions
  40 fi
  41
  42 # Check that networking is up.
  43 [ "${NETWORKING}" = "no" ] && exit 0
  44
  45 # Red Hat has it's own "action"-function for RHGB-messages.
  46 lustre_action () {
  47         STRING=$1
  48         shift
  49         if [ $(typeset -F action) ]; then
  50                 action "$STRING" $*
  51                 rc=$?
  52         else
  53                 $*
  54                 rc=$?
  55                 if [ $rc = 0 ]; then
  56                         log_success_msg "$STRING"
  57                 else
  58                         log_failure_msg "$STRING"
  59                 fi
  60         fi
  61         return $rc
  62 }
  63
  64 LUSTREFSTAB=`LC_ALL=C awk '!/^#/ && $3 == "lustre" && $4 !~ /noauto/ { print $2 }' /etc/fstab`
  65 LUSTREMTAB=`LC_ALL=C awk '!/^#/ && $3 == "lustre" { print $2 }' /proc/mounts`
  66
  67 # See how we were called.
  68 case "$1" in
  69   start)
  70         [ -n "$LUSTREFSTAB" ] && lustre_action $"Mounting Lustre filesystems: " mount -a -t lustre
  71         touch /var/lock/subsys/lustrefs
  72         ;;
  73   stop)
  74         [ -n "$LUSTREMTAB" ] && {
  75                 sig=
  76                 retry=3
  77                 remaining=`LC_ALL=C awk '!/^#/ && $3 ~ /^lustre/ && $2 != "/" {print $2}' /proc/mounts`
  78                 while [ -n "$remaining" -a "$retry" -gt 0 ]
  79                 do
  80                         if [ "$retry" -lt 3 ]; then
  81                                 lustre_action $"Unmounting Lustre filesystems (retry): " umount -f -a -t lustre
  82                         else
  83                                 lustre_action $"Unmounting Lustre filesystems: " umount -a -t lustre
  84                         fi
  85                         sleep 2
  86                         remaining=`LC_ALL=C awk '!/^#/ && $3 ~ /^lustre/ && $2 != "/" {print $2}' /proc/mounts`
  87                         [ -z "$remaining" ] && break
  88                         /sbin/fuser -k -m $sig $remaining >/dev/null
  89                         sleep 5
  90                         retry=$(($retry - 1))
  91                         sig=-9
  92                 done
  93         }
  94         rm -f /var/lock/subsys/lustrefs
  95         ;;
  96   status)
  97         if [ -f /proc/mounts ] ; then
  98                 [ -n "$LUSTREFSTAB" ] && {
  99                       echo $"Configured Lustre mountpoints: "
 100                       for fs in $LUSTREFSTAB; do echo $fs ; done
 101                 }
 102                 [ -n "$LUSTREMTAB" ] && {
 103                       echo $"Active Lustre mountpoints: "
 104                       for fs in $LUSTREMTAB; do echo $fs ; done
 105                 }
 106         else
 107                 echo $"/proc filesystem unavailable"
 108         fi
 109         ;;
 110   restart)
 111         $0 stop
 112         $0 start
 113         ;;
 114   reload)
 115         $0 start
 116         ;;
 117   *)
 118         echo $"Usage: $0 {start|stop|restart|reload|status}"
 119         exit 1
 120 esac
 121
 122 exit 0