+++ /dev/null
-#LyX 1.3 created this file. For more info see http://www.lyx.org/
-\lyxformat 221
-\textclass amsart-plain
-\language english
-\inputencoding auto
-\fontscheme times
-\graphics default
-\paperfontsize default
-\spacing single
-\papersize letterpaper
-\paperpackage a4
-\use_geometry 0
-\use_amsmath 0
-\use_natbib 0
-\use_numerical_citations 0
-\paperorientation portrait
-\secnumdepth 3
-\tocdepth 3
-\paragraph_separation skip
-\defskip medskip
-\quotes_language english
-\quotes_times 2
-\papercolumns 1
-\papersides 1
-\paperpagestyle default
-
-\layout Section
-
-lctl
-\layout Subsection
-
-NAME
-\layout Description
-
-lctl Low level Lustre filesystem configuration utility.
-\layout Subsection
-
-SYNOPSIS
-\layout Standard
-
-
-\series bold
-lctl
-\layout Standard
-
-
-\series bold
-lctl\SpecialChar ~
---device\SpecialChar ~
-<devno> <command\SpecialChar ~
-[args]>
-\layout Standard
-
-
-\series bold
-lctl\SpecialChar ~
---threads\SpecialChar ~
-<numthreads>\SpecialChar ~
-<verbose>\SpecialChar ~
-<devno>\SpecialChar ~
-<command [args]>
-\layout Subsection
-
-DESCRIPTION
-\layout Standard
-
-The program can be invoked in interactive mode by issuing
-\series bold
-lctl.
-
-\series default
- After that, commands are issued as below.
- The most common commands in lctl are (in matching pairs)
-\family typewriter
-\size small
-device
-\family default
-\size default
- and
-\family typewriter
-\size small
-attach
-\family default
-\size default
-,
-\family typewriter
-\size small
-detach
-\family default
-\size default
- and
-\family typewriter
-\size small
-setup
-\family default
-\size default
-,
-\family typewriter
-\size small
-cleanup
-\family default
-\size default
- and
-\family typewriter
-\size small
-connect
-\family default
-\size default
-,
-\family typewriter
-\size small
-disconnect
-\family default
-\size default
- and
-\family typewriter
-\size small
-help
-\family default
-\size default
-, and
-\family typewriter
-\size small
-quit
-\family default
-\size default
-.
- To get a complete listing of available commands, type
-\family typewriter
-\size small
-help
-\family default
-\size default
- at the lctl prompt.
- To get basic help on the meaning and syntax of a command, type
-\family typewriter
-\size small
-help command
-\family default
-\size default
-.
- Command completion is activated with the
-\family typewriter
-\size small
-TAB
-\family default
-\size default
- key, and command history is available via the up- and down-arrow keys.
-
-\layout Standard
-
-For non-interactive single threaded use, one uses the second invocation,
- which runs
-\emph on
-command
-\emph default
- after connecting to the device
-\emph on
-.
-
-\emph default
-
-\layout Description
-
---device The device number to be used for the operation.
- The value of devno is an integer, normally found by calling
-\emph on
-lctl device_list/dl
-\emph default
-.
-
-\layout Description
-
---threads How many threads should be forked doing the command specified.
- The numthreads variable is a strictly positive integer indicating how many
- threads should be started.
- The
-\emph on
-devno
-\emph default
-option is used as above.
-\layout Description
-
---ignore_errors\SpecialChar ~
-|\SpecialChar ~
-ignore_errors Ignore errors that occur during script processing.
-\layout Description
-
-dump Save ioctl buffer to file.
-\layout LyX-Code
-
-\layout Description
-
-Network\SpecialChar ~
-Configuration
-\begin_deeper
-\layout Description
-
---net\SpecialChar ~
-
-\series bold
-<tcp/elan/myrinet>
-\series default
-\SpecialChar ~
-
-\series bold
-<command>
-\series default
-Indicate the network type to be used for the operation.
-\layout Description
-
-network\SpecialChar ~
-<tcp/elans/myrinet> Indicate what kind of network applies for the
- configuration commands that follow.
-\layout Description
-
-interface_list Print the interface entries.
-\layout Description
-
-add_interface\SpecialChar ~
-
-\series bold
-<
-\series default
-ip>\SpecialChar ~
-[netmask] Add an interface entry.
-\layout Description
-
-del_interface\SpecialChar ~
-[ip] Delete an interface entry.
-\layout Description
-
-peer_list Print the peer entries.
-\layout Description
-
-add_peer\SpecialChar ~
-
-\series bold
-<
-\series default
-nid>\SpecialChar ~
-
-\series bold
-<
-\series default
-host>\SpecialChar ~
-
-\series bold
-<
-\series default
-port>
-\series bold
-Add a peer entry.
-\layout Description
-
-del_peer\SpecialChar ~
-[
-\series bold
-<
-\series default
-nid>]\SpecialChar ~
-[
-\series bold
-<
-\series default
-host>]\SpecialChar ~
-[ks] Remove a peer entry.
-\layout Description
-
-connect\SpecialChar ~
-<hostname>\SpecialChar ~
-<port>\SpecialChar ~
-[iIOC] This will establish a connection to a remote
- network, network
-\emph on
-id
-\emph default
- given by the hostname/port combination.
-\layout Description
-
-disconnect\SpecialChar ~
-<nid> Disconnect from a remote
-\emph on
-nid
-\emph default
-.
-\layout Description
-
-active_tx This command should print active transmits, and it is only used
- for elan network type.
-\layout Description
-
-mynid\SpecialChar ~
-[nid] Informs the socknal of the local
-\emph on
-nid
-\emph default
-.
- It defaults to hostname for tcp networks and is automatically setup for
- elan/myrinet networks.
-\layout Description
-
-shownid Print the local NID.
-\layout Description
-
-add_uuid\SpecialChar ~
-<uuid>\SpecialChar ~
-<nid>\SpecialChar ~
-<net_type> Associate a given UUID with an
-\emph on
-nid.
-\layout Description
-
-close_uuid\SpecialChar ~
-<uuid>\SpecialChar ~
-<net_type> Disconnect a UUID.
-\layout Description
-
-del_uuid\SpecialChar ~
-<uuid> Delete a UUID association.
-\layout Description
-
-add_route\SpecialChar ~
-<gateway>\SpecialChar ~
-<target>\SpecialChar ~
-[<target>] Add an entry to the portals routing
- table for the given target.
- The arguments should be nid.
- If only one <target> is provided, this command should only add the route
- for this target.
- But, if both of the <target>s are provides, this command should add the
- route for all the target in the range specified by the two targets(from
- low nid to high nid).
-\layout Description
-
-del_route\SpecialChar ~
-<gateway>\SpecialChar ~
-[<target>]\SpecialChar ~
-[<target>] Delete the route entry for the given
- targets from the portals routing table.
- The arguments should be nid.
-
-\layout Description
-
-set_route\SpecialChar ~
-<gateway>\SpecialChar ~
-<up/down>\SpecialChar ~
-[<time>] Enable/disable routes via the given
- gateway in the protals routing table.
- <time> is used to tell when a gateway comes back online.
-\layout Description
-
-route_list Print the complete portals routing table.
-\layout Description
-
-fail\SpecialChar ~
-nid|_all_\SpecialChar ~
-[count] Fail/restore communications.
- Omitting the count implies fail indefinitely, count of zero indicates that
- communication should be restored.
- A non-zero count indicates the number of portals messages to be dropped
- after which the communication is restored.
- The argument
-\begin_inset Quotes eld
-\end_inset
-
-nid
-\begin_inset Quotes erd
-\end_inset
-
- is used to specify the gateway, which is one peer of the communication.
-\end_deeper
-\layout Description
-
-Device\SpecialChar ~
-Selection
-\begin_deeper
-\layout Description
-
-newdev Create a new device.
-\layout Description
-
-device\SpecialChar ~
-<%name|$name|devno> This will select the specified OBD device.
- All other commands depend on the device being set.
-\layout Description
-
-cfg_device\SpecialChar ~
-<$name> Set current device being configured to <$name>.
-\layout Description
-
-device_list Show all the devices.
-\layout Description
-
-dl The same as device_list.
-\layout Description
-
-lustre_build_version Print the Lustre build version.
-\end_deeper
-\layout Description
-
-Device\SpecialChar ~
-Configuration
-\begin_deeper
-\layout Description
-
-attach\SpecialChar ~
-type\SpecialChar ~
-[name\SpecialChar ~
-[uuid]]
-\shape italic
-\emph on
-Attach
-\shape default
-\emph default
- a type to the current device (which you need to set using the
-\family typewriter
-\size small
-device
-\family default
-\size default
- command) and give that device a name and UUID.
- This allows us to identify the device for use later, and also tells us
- what type of device we will have.
-\layout Description
-
-setup\SpecialChar ~
-<args...> Type specific device setup commands.
- For obdfilter, a setup command tells the driver which block device it should
- use for storage and what type of filesystem is on that device.
-
-\layout Description
-
-cleanup\SpecialChar ~
-[force|failover] Cleanup a previously setup device.
-\layout Description
-
-detach Remove driver (and name and UUID) from the current device.
-\layout Description
-
-lov_setup\SpecialChar ~
-lov-uuid\SpecialChar ~
-stripe-count\SpecialChar ~
-stripe-size\SpecialChar ~
-offset\SpecialChar ~
-pattern\SpecialChar ~
-UUID1\SpecialChar ~
-[UUID2...] Write
- LOV configuration to an MDS device.
-\layout Description
-
-lov_getconfig\SpecialChar ~
-lov-uuid Read LOV configuration from an MDS device.
- Returns stripe-count, stripe-size, offset, pattern, and a list of OST UUID's.
-\layout Description
-
-record\SpecialChar ~
-cfg-uuid-name Record commands that follow in log.
-\layout Description
-
-endrecord Stop recording
-\layout Description
-
-parse\SpecialChar ~
-config-uuid-name Parse the log of recorded commands for this config.
-\layout Description
-
-dump_log\SpecialChar ~
-config-uuid-name Print log of recorded commands for this config
- to kernel debug log.
-\layout Description
-
-clear_log\SpecialChar ~
-config-name Delete current config log of recorded commands.
-\end_deeper
-\layout Description
-
-Device\SpecialChar ~
-Operations
-\begin_deeper
-\layout Description
-
-probe\SpecialChar ~
-[timeout] Build a connection handle to a device.
- This command is used to suspend configuration until the lctl command has
- ensured that the MDS and OSC services are available.
- This is to avoid mount failures in a rebooting cluster.
-\layout Description
-
-close
-\emph on
-
-\emph default
-Close the
-\emph on
-
-\emph default
-connection handle
-\layout Description
-
-getattr\SpecialChar ~
-<objid> Get attributes for an OST object
-\emph on
-<objid>
-\emph default
- .
-\layout Description
-
-setattr\SpecialChar ~
-<objid>\SpecialChar ~
-<mode> Set mode attribute for OST object
-\emph on
-<objid>
-\emph default
-.
-\layout Description
-
-create\SpecialChar ~
-[num\SpecialChar ~
-[mode\SpecialChar ~
-[verbose\SpecialChar ~
-[lsm\SpecialChar ~
-data]]]] Create the specified number
-\emph on
-<num>
-\emph default
- of OST objects with the given
-\emph on
-<mode>
-\emph default
-.
-\layout Description
-
-destroy\SpecialChar ~
-<num>\SpecialChar ~
-starting\SpecialChar ~
-at\SpecialChar ~
-<objid> Destroy <
-\emph on
-num
-\emph default
-> number of objects starting from the object with object id <
-\emph on
-objid
-\emph default
->.
-\layout Description
-
-test_getattr\SpecialChar ~
-<num>\SpecialChar ~
-[verbose\SpecialChar ~
-[[t]objid]] Do
-\emph on
-<num>
-\emph default
-
-\emph on
-getattrs
-\emph default
- on OST object
-\emph on
-<objid>
-\emph default
- (
-\emph on
-objectid
-\emph default
-+1 on each thread).
-\layout Description
-
-test_brw\SpecialChar ~
-[t]<num>\SpecialChar ~
-[write\SpecialChar ~
-[verbose\SpecialChar ~
-[npages\SpecialChar ~
-[[t]objid]]]] Do
-\emph on
-<num>
-\emph default
- bulk
-\emph on
-read
-\emph default
-/
-\emph on
-writes
-\emph default
- on OST object
-\emph on
-<objid>
-\emph default
- (
-\emph on
-<npages>
-\emph default
- per I/O).
-\layout Description
-
-get_stripe\SpecialChar ~
-objid Show stripe info for an echo client object.
-\layout Description
-
-set_stripe\SpecialChar ~
-<objid>[=width!count[@offset]\SpecialChar ~
-[:id:id....] Set stripe info for an echo
- client object.
-\layout Description
-
-unset_stripe\SpecialChar ~
-<objid> Unset stripe info for an echo client object.
-\layout Description
-
-test_ldlm Perform lock manager test.
-\layout Description
-
-ldlm_regress_start\SpecialChar ~
-[numthreads\SpecialChar ~
-[refheld\SpecialChar ~
-[numres\SpecialChar ~
-[numext]]]] Start lock manager
- stress test.
-\layout Description
-
-ldlm_regress_stop Stop lock manager stress test.
-\layout Description
-
-dump_ldlm Dump all lock manager state, this is very useful for debugging.
-\layout Description
-
-activate Activate an import.
-\layout Description
-
-deactivate De-activate an import.
-\layout Description
-
-recover\SpecialChar ~
-[<connection\SpecialChar ~
-UUID>] Pass the information of the new target and initialize
- the connection to this target.
-
-\layout Description
-
-lookup\SpecialChar ~
-<directory>\SpecialChar ~
-<file> Print some information of the given file.
-\layout Description
-
-notransno Disable sending of committed transnumber updates.
-\layout Description
-
-readonly Disable writes to the underlying device.
-\layout Description
-
-abort_recovery Abort recovery on MDS device.
-\layout Description
-
-start\SpecialChar ~
-<profilename> Setup mds/ost from the llog file.
-\layout Description
-
-mount_option\SpecialChar ~
-profile\SpecialChar ~
-osc_name\SpecialChar ~
-[mdc_name] Add a new profile to lustre.
-\layout Description
-
-del_mount_option\SpecialChar ~
-profile Delete a specified profile.
-\layout Description
-
-set_timeout\SpecialChar ~
-<secs> Set the timeout(
-\emph on
-obd_timeout
-\emph default
-) for server to wait before failing recovery.
-\layout Description
-
-set_lustre_upcall\SpecialChar ~
-</full/path/to/upcall> Set the lustre upcall(obd_lustre_upcall)
- via the lustre.upcall sysctl.
-\layout Description
-
-llog_catlist List all catalog logs on current device.
-\layout Description
-
-llog_info\SpecialChar ~
-<$logname|#oid#ogr#ogen> Print log header information.
-
-\layout Description
-
-llog_print\SpecialChar ~
-<$logname|#oid#ogr#ogen>\SpecialChar ~
-[from]\SpecialChar ~
-[to] Print log content information.
- It will print all records from index 1 by default.
-\layout Description
-
-llog_check\SpecialChar ~
-<$logname|#oid#ogr#ogen>\SpecialChar ~
-[from]\SpecialChar ~
-[to] Check log content information.
- It will check all records from index 1 by default.
-\layout Description
-
-llog_cancel\SpecialChar ~
-<catalog\SpecialChar ~
-id|catalog\SpecialChar ~
-name>\SpecialChar ~
-<log\SpecialChar ~
-id>\SpecialChar ~
-<index> Cancel one record in log.
-\layout Description
-
-llog_remove\SpecialChar ~
-<catalog\SpecialChar ~
-id|catalog\SpecialChar ~
-name>\SpecialChar ~
-<log\SpecialChar ~
-id> Remove one log from catalog, erase
- it from disk.
-\end_deeper
-\layout Description
-
-Debug
-\begin_deeper
-\layout Description
-
-debug_daemon\SpecialChar ~
-[start\SpecialChar ~
-file\SpecialChar ~
-<#MB>|stop|pause|continue] Debug daemon control and
- dump to a file.
-\layout Description
-
-debug_kernel\SpecialChar ~
-[file]\SpecialChar ~
-[raw] Get Lustre debug buffer from kernel and dump to a
-\emph on
-file
-\emph default
-.
-\layout Description
-
-dk The same as debug_kernel.
-\layout Description
-
-debug_file\SpecialChar ~
-<input>\SpecialChar ~
-[output]\SpecialChar ~
-Convert kernel-dumped debug log from binary to plain text format.
-
-\emph on
-output
-\emph default
-.
-\layout Description
-
-clear Clear kernel debug buffer.
-\layout Description
-
-mark\SpecialChar ~
-<text> Insert marker text in kernel debug buffer.
-\layout Description
-
-filter\SpecialChar ~
-<subsystem\SpecialChar ~
-id/debug\SpecialChar ~
-mask> Filter message type from the kernel debug
- buffer.
-\layout Description
-
-show\SpecialChar ~
-<subsystem\SpecialChar ~
-id/debug\SpecialChar ~
-mask> Show specific type of messages.
-\layout Description
-
-debug_list\SpecialChar ~
-<subs/types> List all the subsystem and debug types.
-\layout Description
-
-modules\SpecialChar ~
-<path> Provide gdb-friendly module information.
-\layout Description
-
-panic Force the kernel to panic.
-\layout Description
-
-lwt\SpecialChar ~
-start/stop\SpecialChar ~
-[file] Light-weight tracing.
-\layout Description
-
-memhog\SpecialChar ~
-<page\SpecialChar ~
-count>\SpecialChar ~
-[<gfp\SpecialChar ~
-flags>] Memory pressure testing.
-\end_deeper
-\layout Description
-
-Control
-\begin_deeper
-\layout Description
-
-help Show a complete list of commands;
-\emph on
-help <command name>
-\emph default
- can be used to get help on specific command.
-\layout Description
-
-exit Close the lctl session.
-\layout Description
-
-quit Close the lctl session.
-\end_deeper
-\layout Subsection
-
-EXAMPLES
-\layout Description
-
-attach
-\layout LyX-Code
-
-
-\size small
-# lctl
-\newline
-lctl > newdev
-\newline
-lctl > attach obdfilter OBDDEV OBDUUID
-\size default
-
-\newline
-
-\layout Description
-
-connect
-\layout LyX-Code
-
-
-\size small
-lctl > name2dev OSCDEV
-\newline
-2
-\newline
-lctl > device 2
-\newline
-lctl > connect
-\size default
-
-\newline
-
-\layout Description
-
-getattr
-\layout LyX-Code
-
-
-\size small
-lctl > getattr 12
-\newline
-id: 12
-\newline
-grp: 0
-\newline
-atime: 1002663714
-\newline
-mtime: 1002663535
-\newline
-ctime: 1002663535
-\newline
-size: 10
-\newline
-blocks: 8
-\newline
-blksize: 4096
-\newline
-mode: 100644
-\newline
-uid: 0
-\newline
-gid: 0
-\newline
-flags: 0
-\newline
-obdflags: 0
-\newline
-nlink: 1
-\newline
-valid: ffffffff
-\newline
-inline:
-\newline
-obdmd:
-\newline
-lctl > disconnect
-\newline
-Finished (success)
-\newline
-
-\layout Description
-
-setup
-\emph on
-
-\layout LyX-Code
-
-
-\size small
-lctl > setup /dev/loop0 ldiskfs
-\newline
-lctl > quit
-\size default
-
-\newline
-
-\layout LyX-Code
-
-\layout Subsection
-
-BUGS
-\layout Standard
-
-None are known.
-\the_end
git://git.whamcloud.com / fs / lustre-release.git / commitdiff