HP StoreAll OS 6.5.1 Upgrade Guide

6. Stop all client I/O to the cluster or file systems. On the Linux client, use lsof </mountpoint>
to show open files belonging to active processes.
7. Unmount file systems on Linux StoreAll clients:
ibrix_umount -f MOUNTPOINT
8. On all nodes hosting the passive Fusion Manager, place the Fusion Manager into maintenance
mode:
<ibrixhome>/bin/ibrix_fm -m maintenance -A
9. On the active Fusion Manager node, disable automated failover on all nodes:
<ibrixhome>/bin/ibrix_server -m -U
10. Run the following command to verify that automated failover is off. In the output, the HA column
should display off.
<ibrixhome>/bin/ibrix_server -l
11. Stop the SMB, NFS and NDMP services on all nodes. Run the following commands on the
node hosting the active Fusion Manager.
The following steps are strongly recommended for shutting down processes in a proper manner
as to prevent data loss:
IMPORTANT: Alert users that SMB (CIFS), NFS and NDMP processes will be stopped for
proper cluster shutdown. Improper shutdown might result in file inconsistencies.
a. To stop SMB (CIFS) processes:
ibrix_server -s -t cifs -c stop
b. If you are using SMB, verify that all likewise services are down on all nodes:
ps -ef | grep likewise
Use kill -9 to stop any likewise services that are still running.
c. To stop NFS processes:
ibrix_server -s -t nfs -c stop
Verify that all NFS processes are stopped:
ps -ef | grep nfs
If necessary, use the following command to stop NFS services:
/etc/init.d/nfs stop
Use kill -9 to stop any NFS lockd and nfsd that are still running.
d. To stop NDMP processes:
ibrix_server -s -t ndmp -c stop
e. If necessary, run the following command on all nodes to find any open file handles for
the mounted file systems:
lsof </mountpoint>
f. Use kill -9 to stop any processes that still have open file handles on the file systems.
This step should be a last resort to stopping services. Improper shutdown might result in
file inconsistencies.
12. Unmount each file system manually:
ibrix_umount -f FSNAME
Wait up to 15 minutes for the file systems to unmount.
Troubleshoot any issues with unmounting file systems before proceeding with the upgrade.
See “File system unmount issues” (page 45).
22 Cascading upgrades