Wulver Maintenance¶
GPFS Fileset Changes
Wulver will be out of service Wed Oct 18th between 9:00 am-11:00 am for updates and configuration changes. The maintence will be conducted to fix the stale file handle error on /scratch while accessing files from login node.
Maintencance Plans¶
Recommendation:¶
- Each fileset gets it’s own inode namespace
- Fileset names to automatically inherit pool policies
- Additional fileset settings for chmod to not conflict with ACLs
Migration Plan:¶
- Create new filesets and link under /mmfs1/Scratch and /mmfs1/Project
- New fileset names with sata1-project_xx and nvme1-scratch_xx (no bearing on FS path)
- New fileset have own inode spaces
- Rsync data from old to new location
- Job outage for final copy and change
- Final rsyncs
- Remove symlink for /mmfs1/scratch and create /mmfs1/scratch
- Unlink/relink filesets in new location
- Resolve any links remaining on nodes/images