Managing remote access to a GPFS file system

This is an example of how to manage remote access to GPFS file systems.

To see a list of all clusters authorized to mount file systems owned by cluster1, the administrator of cluster1 issues this command:

mmauth show

To authorize a third cluster, say cluster3, to access file systems owned by cluster1, the administrator of cluster1 issues this command:

mmauth add cluster3 -k cluster3_id_rsa.pub
mmauth grant cluster3 -f /dev/gpfs1

To subsequently revoke cluster3 authorization to access a specific file system gpfs1 owned by cluster1, the administrator of cluster1 issues this command:

mmauth deny cluster3 -f /dev/gpfs1

To completely revoke cluster3 authorization to access file systems owned by cluster1, the administrator of cluster1 issues this command:

mmauth delete cluster3

Note: Access controls such as grant and deny do not apply on the remote nodes that have the specified file system currently mounted. The new access control will be applied on the next mount of the file system.