Matt
On Wed, 2006-05-24 at 13:18 -0500, Robert S Peterson wrote:
Hi Matthew, On Wed, 2006-05-24 at 11:02 -0600, Matthew B. Brookover wrote: > For various reasons, I am getting ready to upgrade from Enterprise 3 and > GFS 6.0 to Enterprise 4 and GFS 6.1. > > The upgrade section of the GFS 6.1 administrators guide has instructions > to convert pools to LVM2 and says to see the Configuring and Managing a > Cluster guide to convert a GFS file system from GULM to DLM. I have not > carefully read the Configuring and Managing a Cluster Guide, but a quick > scan of the index and table of contents did not reveal the instructions. > > So, my first question, how do I switch an existing file system in GFS > 6.1 from GULM to DLM? The GFS filesystem format is identical from RHEL3 to RHEL4. If you want to switch from GULM to DLM (a wise move), do this: gfs_tool sb <your device> proto lock_dlm For example: [root@trin-12 ~]# gfs_tool sb /dev/bobs_vg/lvol0 proto lock_dlm > The second question, what kind of experiences have people had with an > upgrade of a cluster from Enterprise 3 AS update 6 to Enterprise 4 AS > update 3? I'm sure other people would be willing to share their stories. > Thank you > > Matt > mbrookov@xxxxxxxxx I also recommend making a good backup or two of your fs before starting. Regards, Bob Peterson Red Hat Cluster Suite
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