mmdelcallback command

Deletes one or more user-defined callbacks from the GPFS™ system.

Synopsis

mmdelcallback CallbackIdentifier[,CallbackIdentifier...]

Availability

Available on all IBM Spectrum Scale™ editions.

Description

Use the mmdelcallback command to delete one or more user-defined callbacks from the GPFS system.

Parameters

CallbackIdentifier: Specifies a user-defined unique name that identifies the callback to be deleted. Use the mmlscallback command to see the name of the callbacks that can be deleted.
Note: Before you add or delete the tiebreakerCheck event, you must stop the GPFS daemon on all the nodes in the cluster.

Exit status

0: Successful completion.
nonzero: A failure has occurred.

Security

You must have root authority to run the mmdelcallback command.

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

To delete the test1 callback from the GPFS system, issue this command:

mmmdelcallback test1

The system displays information similar to:

mmdelcallback: Propagating the cluster configuration data to all
  affected nodes.  This is an asynchronous process.

Location

/usr/lpp/mmfs/bin