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       mount.lustre - start a Lustre client or target service


       mount -t lustre [-o options] directory


       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:

              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

              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.


              The mgs specification may be a colon-separated list of nodes:

              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.

              Enable  local  flock  support,  using  only  client-local  flock
              (faster,  for  applications that require flock but do not run on
              multiple nodes).

              Disable flock support entirely.  Applications calling flock will
              get an error.

              Enable get/set of extended attributes by regular users.  See the
              attr(5) manual page.

              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

       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.

              Start  a  client  or  MDT with a (colon-separated) list of known
              inactive OSTs.

              Abort client recovery and start the target service  immediately.

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

              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).

              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).


       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.


       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 for more details on a  web-based,  free,  IT
       asset management system.


       Not  very  many  mount  options can be changed with -o remount.  Please
       report all bugs to Sun Microsystems using


       mount.lustre is  part  of  the  Lustre(7)  filesystem  package  and  is
       available from Sun Microsystems, Inc.


       Lustre(7), mount(8), mkfs.lustre(8), tunefs.lustre(8), lctl(8), lfs(1)