| Table of Contents |
|---|
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.
...
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.
...
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.
...
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.
| Info |
|---|
WarningEnsure that the cluster has enough free space and nodes to store the objects from the retiring volume. For subclusters, this applies to the subcluster where the retiring volume resides. If the number of nodes in the cluster or subcluster do not have enough space to store at least two replicas of all objects, the retiring node cannot complete the retirement process until you add additional nodes. The Retire action does not require that the configured default replicas ( |