Perform this task to monitor disk paths in your cluster.
DPM is not supported on nodes that run versions that were released prior to Sun Cluster 3.1 5/03 software. Do not use DPM commands while a rolling upgrade is in progress. After all nodes are upgraded, the nodes must be online to use DPM commands.
Become superuser on any node in the cluster.
Monitor a disk path by using the scdpm command.
# scdpm -m node:disk path |
Refer to Table 4–6 for naming conventions for the node:disk path argument.
Verify that the disk path is monitored.
# scdpm -p node:all |
The following example monitors the schost-1:/dev/did/rdsk/d1 disk path from a single node. Only the DPM daemon on the node schost-1 monitors the path to the disk /dev/did/dsk/d1.
# scdpm -m schost-1:d1 # scdpm -p schost-1:d1 schost-1:/dev/did/dsk/d1 Ok |
The following example monitors the schost-1:/dev/did/dsk/d1 disk path from all nodes. DPM starts on all nodes for which /dev/did/dsk/d1 is a valid path.
# scdpm -m all:/dev/did/dsk/d1 # scdpm -p schost-1:d1 schost-1:/dev/did/dsk/d1 Ok |
The following example forces the daemon to reread the disk configuration from the CCR and prints the monitored disk paths with status.
# scdpm -m all:all # scdpm -p all:all schost-1:/dev/did/dsk/d4 Ok schost-1:/dev/did/dsk/d3 Ok schost-2:/dev/did/dsk/d4 Fail schost-2:/dev/did/dsk/d3 Ok schost-2:/dev/did/dsk/d5 Unmonitored schost-2:/dev/did/dsk/d6 Ok |