You may only have one GPFS cluster per existing HACMP cluster from which you create your GPFS nodesets. For information on creating and maintaining your HACMP cluster, see the High Availability Cluster Multi-Processing for AIX: Enhanced Scalability Installation and Administration Guide, Volumes 1 and 2.
Before you configure a nodeset for use within a GPFS cluster, you must
first create a GPFS cluster by issuing the mmcrcluster command. Table 5 details the GPFS cluster creation
options on the mmcrcluster command,
which options can be changed later by the mmchcluster command, and what the default
values are.
Table 5. GPFS cluster creation options
|
| mmcrcluster | mmchcluster | default value |
|---|---|---|---|
| Nodes in your GPFS cluster | X | To add or delete nodes from the cluster use mmaddcluster or mmdelcluster respectively | none |
| GPFS cluster data servers, primary cluster data server | X | X | none |
| GPFS cluster data servers, secondary cluster data server | X | X | none |
| GPFS cluster type | X | This cannot be changed | none |
| Remote shell command | X | X | /usr/bin/rsh |
| Remote file copy command | X | X | /usr/bin/rcp |
|
Notes:
| |||