mmlspolicy command
Displays policy information.
Synopsis
mmlspolicy Device [-L] [-Y]Availability
Available on all IBM Spectrum Scale editions.
Description
The mmlspolicy command
displays policy information for a given file system. The information
displayed includes:
- When the policy file was installed.
- The user who installed the policy file.
- The node on which the policy file was installed.
- The first line of the original policy file.
For information about GPFS policies and file placement, see Information lifecycle management for IBM Spectrum Scale.
Parameters
- Device
- The device name of the file system for which policy information is to be displayed. File system names need not be fully-qualified. fs0 is just as acceptable as /dev/fs0.
- -L
- Displays the entire original policy file. If this flag is not specified, only the first line of the original policy file is displayed.
- -Y
- Displays the command output in a parseable format with a colon (:) as a field
delimiter. Each column is described by a header.Note: Fields that have a colon (:) are encoded to prevent confusion. For the set of characters that might be encoded, see the command documentation of mmclidecode. Use the mmclidecode command to decode the field.
Exit status
- 0
- Successful completion.
- nonzero
- A failure has occurred.
Security
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 GPFS file system.
Examples
- This command displays basic information for the policy installed
for file system fs2:
The system displays output similar to:mmlspolicy fs2Policy for file system '/dev/fs2': Installed by root@c103rp12.gpfs.net on Tue Mar 30 15:06:20 2010. First line of policy 'policy' is: /* This is the policy for the fs2 GPFS file system. */ - This command displays extended information for the policy installed for file system
fs2:
The system displays output similar to:mmlspolicy fs2 -L/* This is the policy for the fs2 GPFS file system. */ /* File Placement Rules */ RULE SET POOL 'sp4' WHERE name like '%sp4%' RULE SET POOL 'sp5' WHERE name like '%sp5%' RULE 'default' SET POOL 'system' /* Snapshot Placement Rules*/ RULE SET SNAP_POOL 'sp1' WHERE SNAP_NAME LIKE '%daily%' RULE SET SNAP_POOL 'sp2' /* Exclude Rule */ RULE 'Exclude root users files' EXCLUDE WHERE USER_ID = 0 AND name like '%org%' /* Delete Rule */ RULE 'delete files' DELETE WHERE PATH_NAME like '%tmp%' /* Migrate Rule */ RULE 'sp4.files' MIGRATE FROM POOL 'sp4' TO POOL 'sp5' WHERE name like '%sp4%' /* End of Policy */ - In this example, no policy file was installed for the specified
file system:
The system displays output similar to:mmlspolicy fs4 -LNo policy file was installed for file system 'fs4'. Data will be stored in pool 'system'.