mmlsmount command

Availability

Available on all IBM Spectrum Scale™ editions.

Description

The mmlsmount command reports if a file system is in use at the time the command is issued. A file system is considered to be in use if it is explicitly mounted with the mount or mmmount command, or if it is mounted internally for the purposes of running some other GPFS command. For example, when you run the mmrestripefs command, the file system will be internally mounted for the duration of the command. If mmlsmount is issued in the interim, the file system will be reported as being in use by the mmlsmount command but, unless it is explicitly mounted, will not show up in the output of the mount or df commands.

Parameters

Device | all | all_local | all_remote | {-F DeviceFileName}

Indicates the file system or file systems for which information is displayed.

Device

Indicates the device name of the file system for which information is displayed. File system names need not be fully-qualified. fs0 is just as acceptable as /dev/fs0.

all

Indicates all file systems known to this cluster.

all_local

Indicates all file systems owned by this cluster.

all_remote

Indicates all file systems owned by another cluster.

-F DeviceFileName

Specifies a file containing the device names, one per line, of the file systems for which information is displayed.

This must be the first parameter.

Options

-C {all | all_remote | ClusterName[,ClusterName...]}

Specifies the clusters for which mount information is requested. If one or more ClusterName is specified, only the names of nodes that belong to these clusters and have the file system mounted are displayed. The dot character ('.') can be used in place of the cluster name to denote the local cluster.

Option -C all_remote denotes all clusters other than the one from which the command was issued.

Option -C all refers to all clusters, local and remote, that can have the file system mounted. Option -C all is the default.

-L

Specifies to list the nodes that have the file system mounted.

Exit status

0

Successful completion.

nonzero

A failure has occurred.

Security

If you are a root user, the node on which the command is issued must be able to execute remote shell commands on any other node in the cluster without the use of a password and without producing any extraneous messages. For more information, see Requirements for administering a file system in IBM Spectrum Scale: Administration and Programming Reference.

If you are a non-root user, you may specify only file systems that belong to the same cluster as the node on which the mmlsmount command was issued.

See also

Location