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Mounting and unmounting Lustre file systems on client nodes4–8

filesystem

Specifies the name of the Lustre file system that is to be unmounted.

mountpoint

Specifies the mount point of the file system that is to be unmounted. This is the recommended

argument. Do not include a trailing slash (/) at the end of the mount point.

Table 4-2 lists the options that can be used with the umount and sfsumount commands.

A file system unmount operation can stall if any component of the file system on the HP SFS system is not in

the running state (as shown by the show filesystem command entered on a server in the HP SFS

system).

TIP: You can force a file system unmount operation to proceed (even if the file system is stopped, or an HP

SFS server is shut down), by using the -f option with the sfsumount command or the umount

command.

Note that the -f option can only be used when unmounting file systems that were mounted with the lnet:

or http: protocol. You cannot use the -f option when unmounting file systems that were mounted with

the ldap: protocol.

Table 4-2 Options that can be used with the umount and sfsumount commands

Name umount and/or sfsumount Description

lconf|sfslconf sfsumount Specifies whether the lconf command or the sfslconf

command is to be used for the unmount operation. The

lconf command is used by default if the file system was

mounted with the ldap: protocol.

The sfslconf command has been deprecated since

HP SFS Version 2.0.

[no]repeat sfsumount Specifies whether repeated attempts are to be made to

unmount the file system (until the operation succeeds), or if

only one attempt is to be made to unmount the file system.

The default is norepeat.

If repeat is specified, repeated attempts to unmount the

file system are only made if the following errors occur:

• File system busy. (Attempt the unmount operation again

in the hope that the program that is using the file system

will have completed.)

• LDAP busy. (Attempt the unmount operation again in the

hope that the LDAP server will now be available.)

verbose sfsumount Invokes the lconf or umount command with the

--verbose option.

xxxxxxx umount and sfsumount For file systems mounted with the lnet: or http:

protocols, passes the options unchanged to the umount

command

For file systems mounted with the ldap: protocol, invokes

the lconf or sfslconf command with the --xxxxxxx

option (where xxxxxxx is any valid lconf option without

an argument).

xxxxxxx=yyyyyyy umount and sfsumount For file systems mounted with the lnet: or http:

protocols, passes the options unchanged to the umount

command

For file systems mounted with the ldap: protocol, invokes

the lconf or sfslconf command with the --xxxxxxx

yyyyyyy option pair (where xxxxxxx is any valid lconf

option with a single argument).

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