Troubleshooting
Problem
Symptom
Diagnosing The Problem
File System FileSystemName_ is only missing on one of the VMs
Resolving The Problem
-
On the GPFS client node, run the following steps to mount all filesystems that are present in the GPFS server node but not in the client node:
- Run the following command to display information about a remote GPFS clusters:
su - gpfsprod -c ‘sudo /usr/lpp/mmfs/bin/mmremotecluster show all’
- Run the following command to display the information that is associated with a remote GPFS filesystem:
su - gpfsprod -c ‘sudo /usr/lpp/mmfs/bin/mmremotefs show all’
- Run the following command to delete the information for a remote GPFS file system:
su - gpfsprod -c ‘sudo /usr/lpp/mmfs/bin/mmremotefs delete <fileSystemName>
- Run the following command to define a new remote GPFS file system with enabled automount option:
Important: Automount option must be enabled otherwise upgrade gets blocked. This upgrade issue occurs because the GPFS waits for a new filesystem to mount. Auto mounting ensures that the manual mounting is not required during the upgrade.su - gpfsprod -c ‘sudo /usr/lpp/mmfs/bin/mmremotefs add <fileSystemName> -f <file System Name> -C <cluster name> -A yes -T /gpfs/<fileSystemName>’
- Run the following command to mount a given filesystem:
su - gpfsprod -c ‘sudo /usr/lpp/mmfs/bin/mmmount /<fileSystemName>-a’
Here, replace
filesystemname
with your environment value.If this step fails with the following error, then start the GPFS daemon:
Error:
Error message: mmmount: Mounting file systems ...
<Master Boot>:
mount: unknown filesystem type 'gpfs'
mmmount: Command failed.Use the following command to start the GPFS daemon:
su - gpfsprod -c 'sudo /usr/lpp/mmfs/bin/mmstartup’
If you have already created an additional GPFS filesystem after the instance was deployed and filesystem was not set to auto mount, then enable ‘Automount’ parameter using the following command to avoid upgrade failure:
su - gpfsprod -c 'sudo /usr/lpp/mmfs/bin/mmremotefs update
-A yes.
- Run the following command to display information about a remote GPFS clusters:
Document Location
Worldwide
Was this topic helpful?
Document Information
Modified date:
06 May 2020
UID
ibm11104639