Red Hat GFS 6.0 -, Administrator'S Manual

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Appendix B.
Upgrading GFS
This appendix contains instructions for upgrading GFS 5.2.1 to GFS 6.0 software.
Note
If you are using GFS with Red Hat Cluster, the order in which you upgrade GFS
compared to other Red Hat Cluster installation and configuration tasks may vary.
For information about installing and using GFS with Red Hat Cluster Suite, refer to
Appendix A Using Red Hat GFS with Red Hat Cluster Suite .
To upgrade the software follow these steps:
1. Halt the cluster nodes and the lock servers. The remaining steps require that the GFS cluster be
stopped (all GFS nodes shut down). Stopping the GFS cluster consists of the following actions:
a. Unmount GFS file systems from all nodes.
b. Stop lock servers.
c. Stop
ccsd
on all nodes.
d. Deactivate pools.
e. Unload kernel modules.
2. Install new software. This step consists of the following actions:
Reference: Chapter 3 Installing GFS
a. Install (or verify that) the Red Hat Enterprise Linux 3 Update 2 kernel (the stock "2.4.21-
15.EL" kernel) is installed.
b. Install
perl-Net-Telnet
RPM.
c. Install GFS 6.0 RPMs.
3. Load new kernel modules on GFS nodes.
Reference: Chapter 3 Installing GFS
Example:
insmod pool
insmod lock_harness
insmod lock_gulm
insmod gfs
4. (Optional) Modify CCS files.
With the cluster being shut down, if you need to make changes to the Cluster Configuration
System (CCS) files, you have the option of doing that now. In addition, you can remove the
licens.ccs
file from the CCA — GFS 6.0 requires no
license.ccs
file.