SNMP Commands

Storage cluster nodes are controlled through the SNMP action commands. The following OIDs enable you to disable nodes and volumes with nodes from a storage cluster:

• castorShutdownAction. Disable nodes and volumes within nodes for servicing.
• castorRetireAction. Disable nodes and volumes within nodes for retirement.

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To gracefully shut down a Swarm node, the string shutdown is written to the castorShutdownAction OID. Similarly, writing the string reboot to this OID causes a Swarm node to reboot.

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Each volume is given a unique name within its node – the device string from the vols line in the configuration file. To retire a volume, its name is written as a string to the castorRetireAction OID. The volume retirement process is initiated immediately upon receipt and the action cannot be aborted after it starts.

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To retire a node and all of its volumes, the all string is written to the castorRetireAction OID. The node retirement process is initiated immediately upon receipt and the action cannot be aborted after it starts.

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