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Thank you Bob, this looks good.<BR>
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Matt<BR>
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On Wed, 2006-05-24 at 13:18 -0500, Robert S Peterson wrote:
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<FONT COLOR="#000000">Hi Matthew,</FONT>
<FONT COLOR="#000000">On Wed, 2006-05-24 at 11:02 -0600, Matthew B. Brookover wrote:</FONT>
<FONT COLOR="#000000">> For various reasons, I am getting ready to upgrade from Enterprise 3 and</FONT>
<FONT COLOR="#000000">> GFS 6.0 to Enterprise 4 and GFS 6.1.</FONT>
<FONT COLOR="#000000">> </FONT>
<FONT COLOR="#000000">> The upgrade section of the GFS 6.1 administrators guide has instructions</FONT>
<FONT COLOR="#000000">> to convert pools to LVM2 and says to see the Configuring and Managing a</FONT>
<FONT COLOR="#000000">> Cluster guide to convert a GFS file system from GULM to DLM. I have not</FONT>
<FONT COLOR="#000000">> carefully read the Configuring and Managing a Cluster Guide, but a quick</FONT>
<FONT COLOR="#000000">> scan of the index and table of contents did not reveal the instructions.</FONT>
<FONT COLOR="#000000">> </FONT>
<FONT COLOR="#000000">> So, my first question, how do I switch an existing file system in GFS</FONT>
<FONT COLOR="#000000">> 6.1 from GULM to DLM?</FONT>
<FONT COLOR="#000000">The GFS filesystem format is identical from RHEL3 to RHEL4.</FONT>
<FONT COLOR="#000000">If you want to switch from GULM to DLM (a wise move), do this:</FONT>
<FONT COLOR="#000000">gfs_tool sb <your device> proto lock_dlm</FONT>
<FONT COLOR="#000000">For example:</FONT>
<FONT COLOR="#000000">[root@trin-12 ~]# gfs_tool sb /dev/bobs_vg/lvol0 proto lock_dlm</FONT>
<FONT COLOR="#000000">> The second question, what kind of experiences have people had with an</FONT>
<FONT COLOR="#000000">> upgrade of a cluster from Enterprise 3 AS update 6 to Enterprise 4 AS</FONT>
<FONT COLOR="#000000">> update 3?</FONT>
<FONT COLOR="#000000">I'm sure other people would be willing to share their stories.</FONT>
<FONT COLOR="#000000">> Thank you</FONT>
<FONT COLOR="#000000">> </FONT>
<FONT COLOR="#000000">> Matt</FONT>
<FONT COLOR="#000000">> <A HREF="mailto:mbrookov@mines.edu">mbrookov@mines.edu</A></FONT>
<FONT COLOR="#000000">I also recommend making a good backup or two of your fs before starting.</FONT>
<FONT COLOR="#000000">Regards,</FONT>
<FONT COLOR="#000000">Bob Peterson</FONT>
<FONT COLOR="#000000">Red Hat Cluster Suite</FONT>
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