The mmgetstate command

The mmgetstate command displays the state of the GPFS™ daemon on one or more nodes.

These flags are of interest for problem determination:

-a: List all nodes in the GPFS cluster. The option does not display information for nodes that cannot be reached. You may obtain more information if you specify the -v option.
-L: Additionally display quorum, number of nodes up, and total number of nodes.
The total number of nodes may sometimes be larger than the actual number of nodes in the cluster. This is the case when nodes from other clusters have established connections for the purposes of mounting a file system that belongs to your cluster.
-s: Display summary information: number of local and remote nodes that have joined in the cluster, number of quorum nodes, and so forth.
-v: Display intermediate error messages.

The remaining flags have the same meaning as in the mmshutdown command. They can be used to specify the nodes on which to get the state of the GPFS daemon.

The GPFS states recognized and displayed by this command are:

active: GPFS is ready for operations.
arbitrating: A node is trying to form quorum with the other available nodes.
down: GPFS daemon is not running on the node or is recovering from an internal error.
unknown: Unknown value. Node cannot be reached or some other error occurred.

For example, to display the quorum, the number of nodes up, and the total number of nodes, issue:

mmgetstate -L -a

The system displays output similar to:

Node number Node name Quorum Nodes up Total nodes GPFS state Remarks 
--------------------------------------------------------------------
  2         k154n06     1*     3        7         active     quorum node
  3         k155n05     1*     3        7         active     quorum node
  4         k155n06     1*     3        7         active     quorum node
  5         k155n07     1*     3        7         active
  6         k155n08     1*     3        7         active
  9         k156lnx02   1*     3        7         active
 11         k155n09     1*     3        7         active

where *, if present, indicates that tiebreaker disks are being used.

For more information on the mmgetstate command, see mmgetstate command.