GPFS: Administration and Programming Reference - IRA Home

mmlssnapshot Command
Name
mmlssnapshot – Displays GPFS snapshot information for the specified file system.
Synopsis
mmlssnapshot Device [-d] [-Q]
Description
Use the mmlssnapshot command to display GPFS snapshot information for the specified file system. You
may optionally display the amount of storage used by the snapshot and if quotas were set for automatic
activation upon mounting of the file system at the time the snapshot was taken.
Parameters
Device The device name of the file system for which snapshot information is to be displayed. File
system names need not be fully-qualified. fs0 is just as acceptable as /dev/fs0.
Options
This must be the first parameter.
-d Display the amount of storage used by the snapshot.
-Q Display whether quotas were set to be automatically activated upon mounting of the file system at the
time the snapshot was taken.
Exit status
0 Successful completion.
nonzero A failure has occurred.
Security
You must have root authority to run the mmlssnapshot command.
You may issue the mmlssnapshot command from any node in the GPFS cluster.
When using the rcp and rsh commands for remote communication, a properly configured .rhosts file must
exist in the root user’s home directory on each node in the GPFS cluster. If you have designated the use
of a different remote communication program on either the mmcrcluster or the mmchcluster command,
you must ensure:
1. Proper authorization is granted to all nodes in the GPFS cluster.
2. The nodes in the GPFS cluster can communicate without the use of a password, and without any
extraneous messages.
Examples
To display the snapshot information for the file system fs1 additionally requesting storage information,
issue this command:
mmlssnapshot fs1 -d
The system displays information similar to:
224 GPFS: Administration and Programming Reference