#LyX 1.2 created this file. For more info see http://www.lyx.org/ \lyxformat 220 \textclass amsart \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 lconf \layout Subsection NAME \layout Description lconf Lustre filesystem configuration utility. \layout Subsection SYNOPSIS \layout Standard \series bold lconf\SpecialChar ~ [--node ] [-d,--cleanup] [--noexec] [--gdb] [--nosetup] [--nomod] [-n,--noexec] [-v,--verbose] [-h,--help] \layout Subsection DESCRIPTION \layout Standard This program configures a node following directives in the . 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 --ldapurl\SpecialChar ~ LDAP server URL \layout Description --config\SpecialChar ~ Cluster configuration name used for LDAP query \layout Description --select\SpecialChar ~ Select a particular node for a service \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 --d|--cleanup Unconfigure a node. The same config and \emph on --node \emph default argument used for configuration needs to be used for cleanup as well. This will attempt to undo all of the configuration steps done by lconf, including unloading the kernel modules. \layout Description --force Forced unmounting and/or obd detach during cleanup. Default is 0. \layout Description --mds_ost_conn Open connections to OSTs on MDS. \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 --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. \layout Description --gdb Causes lconf to print a message and pause for 5 seconds after creating a gdb module script and before doing any Lustre configuration (the gdb module script is always created, however). \layout Description --gdb_script\SpecialChar ~ Full name of gdb debug script. Default is /tmp/ogdb. \layout Description --dump_path\SpecialChar ~ Path to save debug dumps. Default is /tmp/lustre_log \layout Description --recover\SpecialChar ~ Recover a device. \layout Description --nosetup Only load modules, do not configure devices or services. \layout Description --group\SpecialChar ~ The group of devices to cleanup/configure. \layout Description --nomod Only setup devices and services, do not load modules. \layout Description --noexec,-n Don't do anything, but print what would happen. Useful for debugging purposes. \layout Description --verbose,-v Be verbose and show actions while going along. \layout Description --timeout\SpecialChar ~ Set the recovery timeout period. \layout Description --lustre_upcall\SpecialChar ~ Set the location of the Lustre upcall scripts used by the client for recovery \layout Description --portals_upcall\SpecialChar ~ Specify the location of the Portals upcall scripts used by the client for recovery \layout Description --upcall\SpecialChar ~ Set the location of both Lustre and Portals upcall scripts used by the client for recovery \layout Description --lctl-dump\SpecialChar ~ Dump all ioctls to the specified file \layout Description --dump\SpecialChar ~ Dump the kernel debug log to the specified file before portals is unloaded during cleanup. \layout Description --reformat Reformat all the devices. This is essential on the first time the file system is brought up. \layout Description -h,--help Print help. \layout Description --maxlevel\SpecialChar ~ Perform configuration of devices and services up to level given. \emph on level \emph default can take the values \series bold net, dev, svc, fs. \series default When used in conjunction with cleanup, services are torn down up to a certain level. Default is 100. \layout Description --minlevel\SpecialChar ~ Specify the minimum level of services to configure/cleanup. Default is 0. \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 --ptldebug\SpecialChar ~ debug\SpecialChar ~ level This options can be used to set the required debug level. \layout Description --subsystem\SpecialChar ~ Set the portals debug subsystem. \layout Subsection EXAMPLES \layout Standard On client nodes this is typically invoked as: \layout LyX-Code \size small lconf --node client config.xml \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 Subsection BUGS \layout Standard None are known. \the_end