Cluster is crashed after re-installation
This topic describes the steps that you need to perform when a cluster crashes after IBM Storage Scale re-installation.
After reinstalling IBM
Storage Scale code,
check whether the /var/mmfs/gen/mmsdrfs file
was lost. If it was lost, and an up-to-date version of the file is
present on the primary GPFS cluster
configuration server, restore the file by issuing this command from
the node on which it is missing:
mmsdrrestore -p primaryServer
where primaryServer is
the name of the primary GPFS cluster
configuration server.If the /var/mmfs/gen/mmsdrfs file is not present on the primary GPFS cluster configuration server, but it is
present on some other node in the cluster, restore the file by issuing these commands:
mmsdrrestore -p remoteNode -F remoteFile
mmchcluster -p LATEST
where remoteNode is the node that has an up-to-date version of
the /var/mmfs/gen/mmsdrfs file, and remoteFile is the
full path name of that file on that node.One way to ensure that the latest version of the /var/mmfs/gen/mmsdrfs file is always available is to use the mmsdrbackup user exit.
If you have made modifications to any of the users exist in /var/mmfs/etc, you need to restore them before starting GPFS.
For additional information, see Recovery from loss of GPFS cluster configuration data file.