GPFS cluster creation considerations
A GPFS cluster is created using the
mmcrcluster command.
On supported Linux distributions, you can use the installation toolkit to create a GPFS cluster. For more information, see Overview of the installation toolkit.
Table 1 details the cluster creation options, how to change the options, and the default values for each option.
| Options | Command to change the option | Default value |
|---|---|---|
| Creating an IBM Spectrum Scale cluster | mmaddnode
mmdelnode |
None |
| Node designation: manager or client. See Creating an IBM Spectrum Scale cluster. | mmchnode | client |
| Node designation: quorum or nonquorum. See Creating an IBM Spectrum Scale cluster. | mmchnode | nonquorum |
| Remote shell command | mmchcluster | /usr/bin/ssh |
| Remote file copy command | mmchcluster | /usr/bin/scp |
| Cluster name | mmchcluster | The node name of the primary GPFS cluster configuration server. |
| Cluster configuration information. See IBM Spectrum Scale cluster configuration information. | mmchcluster | The Cluster Configuration Repository (CCR) is enabled. |
| GPFS administration adapter port name. See GPFS node adapter interface names | mmchnode | Same as the GPFS communications adapter port name. |
| GPFS communications adapter port name. See GPFS node adapter interface names. | mmchnode | None |
| User ID domain for the cluster. | mmchconfig | The name of the GPFS cluster. |
| Starting GPFS automatically | mmchconfig | no |
| Cluster configuration file | Not applicable | None |