Section: configuration utilities (8)Updated: 2008 Mar 15Local indexUp
tunefs.lustre - modify the Lustre configuration information on a disk
is used to modify the configuration information on a Lustre target
disk. This includes upgrading old (pre-Lustre 1.6) disks. This does not
reformat the disk or erase the target information, but modifying the
configuration information can result in an unusable filesystem. You have
Changes made here will affect a filesystem only when the target is next
Set user comment about this disk, ignored by Lustre.
Only print what would be done; does not affect the disk
Remove all previous parameter info
Set the NID(s) of a failover partner. This option can be repeated as desired.
The Lustre filesystem this service will be part of. Default is 'lustre'
Force a particular OST or MDT index
Set the mount options that will be used when mounting the backing fs.
WARNING: unlike earlier versions of tunefs.lustre, this version
completely replaces the existing mount options with those specified on
the command line, issuing a warning on stderr if any of the default
mount options are omitted. The defaults for ldiskfs are
DO NOT alter the default mount options unless you know what you are doing.
Add a configuration management service to this target
Set the NID(s) of the MGS node, required for all targets other than the MGS.
Remove a configuration management service to this target
Print less information.
Print more information.
Erase all config logs for the filesystem that this MDT is part of, and
regenerate them. This is very dangerous. All clients and servers should
All targets must then be restarted to regenerate the logs.
No clients should be started until all targets have restarted.
In general this should be executed on the MDT only, not the OSTs.