GPFS: Administration and Programming Reference - IRA Home

Chapter 8. GPFS commands
Table 4 summarizes the GPFS-specific commands.
Table 4. GPFS commands
Command Purpose
“mmadddisk Command” on page 62 Adds disks to a GPFS file system.
“mmaddnode Command” on page 66 Adds nodes to a GPFS cluster.
“mmapplypolicy Command” on page 69 Deletes files or migrates file data between storage pools in
accordance with policy rules.
“mmauth Command” on page 73 Manages secure access to GPFS file systems.
“mmbackup Command” on page 78 Backs up a GPFS file system to a backup server.
“mmchattr Command” on page 81 Changes attributes of one or more GPFS files.
“mmchcluster Command” on page 84 Changes GPFS cluster configuration data.
“mmchconfig Command” on page 88 Changes GPFS configuration parameters.
“mmchdisk Command” on page 94 Changes state or parameters of one or more disks in a
GPFS file system.
“mmcheckquota Command” on page 98 Checks file system user, group, and fileset quotas.
“mmchfileset Command” on page 101 Changes the attributes of a GPFS fileset.
“mmchfs Command” on page 103 Changes the attributes of a GPFS file system.
“mmchmgr Command” on page 107 Assigns a file system manager node.
“mmchnsd Command” on page 109 Changes NSD configuration parameters.
“mmchpolicy Command” on page 112 Establish policy rules for a GPFS file system.
“mmcrcluster Command” on page 114 Creates a GPFS cluster from a set of nodes.
“mmcrfileset Command” on page 118 Creates a GPFS fileset.
“mmcrfs Command” on page 120 Creates a GPFS file system.
“mmcrnsd Command” on page 126 Creates cluster-wide names for NSDs used by GPFS.
“mmcrsnapshot Command” on page 131 Creates a snapshot of an entire GPFS file system at a single
point in time.
“mmcrvsd Command” on page 134 Creates virtual shared disks for use by GPFS.
“mmdefedquota Command” on page 139 Sets default quota limits for a file system.
“mmdefquotaoff Command” on page 141 Deactivates default quota limit usage for a file system.
“mmdefquotaon Command” on page 143 Activates default quota limit usage for a file system.
“mmdefragfs Command” on page 146 Reduces disk fragmentation by increasing the number of full
free blocks available to the file system.
“mmdelacl Command” on page 149 Deletes a GPFS access control list.
“mmdeldisk Command” on page 151 Deletes disks from a GPFS file system.
“mmdelfileset Command” on page 154 Deletes a GPFS fileset.
“mmdelfs Command” on page 157 Removes a GPFS file system.
“mmdelnode Command” on page 159 Removes one or more nodes from a GPFS cluster.
“mmdelnsd Command” on page 161 Deletes NSDs from the GPFS cluster.
“mmdelsnapshot Command” on page 163 Deletes a GPFS snapshot.
“mmdf Command” on page 165 Queries available file space on a GPFS file system.
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