-#LyX 1.2 created this file. For more info see http://www.lyx.org/
-\lyxformat 220
+#LyX 1.3 created this file. For more info see http://www.lyx.org/
+\lyxformat 221
\textclass amsart
\language english
\inputencoding auto
\layout Standard
This program configures a node following directives in the <XML-config-file>.
+ There will be single configuration file for all the nodes in a single cluster.
+ This file should be distributed to all the nodes in the cluster or kept
+ in a location accessible to all the nodes.
+ One option is to store the cluster configuration information in LDAP format
+ on an LDAP server that can be reached from all the cluster nodes.
\layout Description
---node\SpecialChar ~
-node_name Specify a specific node to configure.
- By default, lconf will search for nodes with the local hostname and 'localhost'.
- When
-\emph on
- --node
-\emph default
- is used, only
-\emph on
-node_name
-\emph default
- is searched for.
- If a matching node is not found in the config, then lconf exits with an
- error.
+--config\SpecialChar ~
+<arg> Cluster configuration name used for LDAP query
\layout Description
---cleanup Unconfigure a node.
+--d|--cleanup Unconfigure a node.
The same config and
\emph on
--node
including unloading the kernel modules.
\layout Description
---noexec Print, but don't execute, the steps lconf will perform.
- This is useful for debugging a configuration, and when used with
-\emph on
---node
-\emph default
-, can be run on any host.
+--dump\SpecialChar ~
+<file> Dump the kernel debug log to the specified file before portals
+ is unloaded during cleanup.
+\layout Description
+
+--dump_path\SpecialChar ~
+<arg> Path to save debug dumps.
+ Default is /tmp/lustre_log
+\layout Description
+
+--failover Used to shutdown without saving state.
+ Default is 0.
+ This will allow the node to give up service to another node for failover
+ purposes.
+ This will not be a clean shutdown.
+\layout Description
+
+--force Forced unmounting and/or obd detach during cleanup.
+ Default is 0.
+
\layout Description
--gdb Causes lconf to print a message and pause for 5 seconds after creating
module script is always created, however).
\layout Description
---nosetup Only load modules, do not configure devices or services.
+--gdb_script\SpecialChar ~
+<arg> Full name of gdb debug script.
+ Default is /tmp/ogdb.
\layout Description
---nomod Only setup devices and services, do not load modules.
+--group\SpecialChar ~
+<arg> The group of devices to cleanup/configure.
\layout Description
---noexec,-n Don't do anything, but print what would happen.
+-h,--help Print help.
\layout Description
---verbose,-v Be verbose and show actions while going along.
+--inactive\SpecialChar ~
+<UUID> The UUID of the service to be ignored by a client mounting
+ Lustre.
+ Allows the client to mount in the presence of some inactive services.
+ (currently OST only).
+ Multiple UUIDs can be specified by repeating the option.
+
\layout Description
---reformat Reformat all the devices
+--lctl-dump\SpecialChar ~
+<arg> Dump all ioctls to the specified file
\layout Description
--h,--help Print help.
+--ldapurl\SpecialChar ~
+<arg> LDAP server URL
+\layout Description
+
+--lustre_upcall\SpecialChar ~
+<path> Set the location of the Lustre upcall scripts used
+ by the client for recovery
+\layout Description
+
+--lustre=src_dir Specify the base directory for Lustre sources, this parameter
+ will cause lconf to load the lustre modules from this soure tree.
+\layout Description
+
+--mds_ost_conn Open connections to OSTs on MDS.
\layout Description
--maxlevel\SpecialChar ~
-<level> [NOT IMPLEMENTED] Perform configuration of devices and
- services up to level given.
+<level> Perform configuration of devices and services up to level
+ given.
\emph on
level
\series default
When used in conjunction with cleanup, services are torn down up to a certain
level.
+ Default is 100.
+\layout Description
+
+--minlevel\SpecialChar ~
+<level> Specify the minimum level of services to configure/cleanup.
+ Default is 0.
+\layout Description
+
+--node\SpecialChar ~
+node_name Specify a specific node to configure.
+ By default, lconf will search for nodes with the local hostname and 'localhost'.
+ When
+\emph on
+ --node
+\emph default
+ is used, only
+\emph on
+node_name
+\emph default
+ is searched for.
+ If a matching node is not found in the config, then lconf exits with an
+ error.
+\layout Description
+
+--noexec,-n Print, but don't execute, the steps lconf will perform.
+ This is useful for debugging a configuration, and when used with
+\emph on
+--node
+\emph default
+, can be run on any host.
+\layout Description
+
+--nomod Only setup devices and services, do not load modules.
+\layout Description
+
+--nosetup Only load modules, do not configure devices or services.
+\layout Description
+
+--portals_upcall\SpecialChar ~
+<path> Specify the location of the Portals upcall scripts
+ used by the client for recovery
+\layout Description
+
+--ptldebug\SpecialChar ~
+debug\SpecialChar ~
+level This options can be used to set the required debug
+ level.
+\layout Description
+
+--recover\SpecialChar ~
+<arg> Recover a device.
+\layout Description
+
+--reformat Reformat all the devices.
+ This is essential on the first time the file system is brought up.
+\layout Description
+
+--select\SpecialChar ~
+<arg> Select a particular node for a service
+\layout Description
+
+--subsystem\SpecialChar ~
+<arg> Set the portals debug subsystem.
+\layout Description
+
+--timeout\SpecialChar ~
+<arg> Set the recovery timeout period.
+\layout Description
+
+--upcall\SpecialChar ~
+<path> Set the location of both Lustre and Portals upcall scripts
+ used by the client for recovery
+\layout Description
+
+--verbose,-v Be verbose and show actions while going along.
+\layout Description
+
+--write_conf Save all client configuration information on the MDS
\layout Subsection
EXAMPLES
\layout Standard
in order to give clients, regardless of hostname, a single configuration.
+\layout Standard
+
+Required debug levels can be set like this:
+\layout LyX-Code
+
+
+\size small
+ ## Everything but these
+\layout LyX-Code
+
+
+\size small
+lconf --ptldebug
+\begin_inset Quotes eld
+\end_inset
+
+~(portals | malloc | trace)
+\begin_inset Quotes erd
+\end_inset
+
+
+\layout LyX-Code
+
+\layout LyX-Code
+
+
+\size small
+## Only these debug types
+\layout LyX-Code
+
+
+\size small
+lconf --ptldebug
+\begin_inset Quotes eld
+\end_inset
+
+ldlm|ha
+\begin_inset Quotes erd
+\end_inset
+
+
+\layout Standard
+
+A subset of failed OSTs can be ignored during Lustre mount on the clients
+ by using the following option:
+\layout LyX-Code
+
+ lconf --inactive OST_ost1_UUID --inactive OST_ost2_UUID config.xml
+\layout Standard
+
+where OST1 and OST2 have failed and need to be ignored.
\layout Subsection
BUGS
git://git.whamcloud.com / fs / lustre-release.git / blobdiff