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mount.lustre
Langue: en
Version: 2008 Mar 15 (ubuntu - 08/07/09)
Section: 8 (Commandes administrateur)
NAME
mount.lustre - start a Lustre client or target serviceSYNOPSIS
mount -t lustre [-o options] directory
DESCRIPTION
mount.lustre is used to start a Lustre client or target service. This program should not be called directly; rather it is a helper program invoked through mount(8) as above. Lustre clients and targets are stopped by using the umount(8) command.There are two forms for the device option, depending on whether a client or a target service is started:
- <mgsspec>:/<fsname>
- mounts the Lustre filesystem named fsname on the client by contacting the Management Service at mgsspec on the pathname given by directory. The format for mgsspec is defined below. A mounted client filesystem appears in fstab(5) and is usable like any local filesystem and provides a full POSIX-compilant interface.
- disk_device
- starts the target service defined by the mkfs.lustre command on the physical disk disk_device. A mounted target service filesystem is only useful for df(1) operations and appears in fstab(5) to show the device is in use.
OPTIONS
- <mgsspec>:=<mgsnode>[:<mgsnode>]
- The mgs specification may be a colon-separated list of nodes:
- <mgsnode>:=<mgsnid>[,<mgsnid>]
- each node may be specified by a comma-separated list of NIDs.
In addition to the standard options listed in mount(8), Lustre understands the following client-specific options:
- flock
- Enable full flock support, coherent across all client nodes.
- localflock
- Enable local flock support, using only client-local flock (faster, for applications that require flock but do not run on multiple nodes).
- noflock
- Disable flock support entirely. Applications calling flock will get an error.
- user_xattr
- Enable get/set of extended attributes by regular users. See the attr(5) manual page.
- nouser_xattr
- Disable use of extended attributes by regular users. Root and system processes can still use extended attributes.
- acl
- Enable POSIX Access Control List support. See the acl(5) manual page.
- noacl
- Disable Access Control List support.
In addition to the standard mount options and backing disk type (e.g. ext3) options listed in mount(8), Lustre understands the following server-specific options:
- nosvc
- Only start the MGC (and MGS, if co-located) for a target service, and not the actual service.
- exclude=ostlist
- Start a client or MDT with a (colon-separated) list of known inactive OSTs.
- abort_recov
- Abort client recovery and start the target service immediately.
EXAMPLES
- mount -t lustre cfs21@tcp0:/testfs /mnt/myfilesystem
- Start a client for the Lustre filesystem 'testfs' at the mount point /mnt/myfilesystem. The Management Service is running on a node reachable from this client via the nid cfs21@tcp0.
- mount -t lustre /dev/sda1 /mnt/test/mdt
- Start the Lustre metadata target service from /dev/sda1 on mountpoint /mnt/test/mdt.
- mount -t lustre -L testfs-MDT0000 -o abort_recov /mnt/test/mdt
- Start the testfs-MDT0000 service (by using the disk label), but abort the recovery process.
BUGS
Not very many mount options can be changed with -o remount. Please report all bugs to Sun Microsystems using http://bugzilla.lustre.org/AVAILABILITY
mount.lustre is part of the Lustre(7) filesystem package and is available from Sun Microsystems, Inc.http://downloads.lustre.org
SEE ALSO
Lustre(7), mount(8), mkfs.lustre(8), tunefs.lustre(8), lctl(8), lfs(1)Contenus ©2006-2024 Benjamin Poulain
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