Provided by: lustre-utils_1.8.5+dfsg-3ubuntu1_i386 bug

NAME

       mount.lustre - start a Lustre client or target service

SYNOPSIS

       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.

       nomgs  Start a MDT with a co-located MGS without starting the MGS.

       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.

       md_stripe_cache_size
              Sets the stripe cache size for server side disk with  a  striped
              raid configuration.

       recovery_time_soft=timeout
              Allow  'timeout'  seconds  for clients to reconnect for recovery
              after a  server  crash.   This  timeout  will  be  incrementally
              extended  if  it  is  about  to  expire  and the server is still
              handling new connections from recoverable clients.  The  default
              soft recovery timeout is set to 300 seconds (5 minutes).

       recovery_time_hard=timeout
              The  server  will be allowed to incrementally extend its timeout
              up to a hard maximum of 'timeout'  seconds.   The  default  hard
              recovery timeout is set to 900 seconds (15 minutes).

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.

NOTES

       If the Service Tags tool (from the sun-servicetag package) can be found
       in /opt/sun/servicetag/bin/stclient an inventory service  tag  will  be
       created  reflecting  the  Lustre  service being provided.  If this tool
       cannot be found mount.lustre will silently ignore it and no service tag
       is  created.   The stclient(1) tool only creates the local service tag.
       No information is sent to the asset management system until you run the
       Registration  Client  to  collect  the tags and then upload them to the
       inventory  system   using   your   inventory   system   account.    See
       https://inventory.sun.com/  for  more  details on a web-based, free, IT
       asset management system.

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)