Hey all,
Few hopefully easy questions for all you GFS geniouses. :)
I've created a test GFS cluster per the docs at:
http://sourceware.org/cluster/doc/usage.txt
First of all, when creating the filesystem, the docs state:
"gfs_mkfs -p lock_dlm -t <ClusterName>:<FSName> -j <Journals> <Device>
<Journals> the number of journals in the fs, one for each node to mount"
So this should be one journal for any node I may want to mount in the
future? Is there any problem with having this set to a high number? (I've
currently got 4 nodes, but will be running Xen domains on top of each of
those nodes which will also be running GFS, so I could have 15-20 nodes
easily).
Second, I see that the docs are using lock_dlm for everything; is this the
recommended approach now? What are the major differences between lock_dlm
and lock_gulm?
Third, just a question about how voting and such works. Again, with the
possibility of 15-20 nodes, I'd still like to be able to use the GFS
filesystem even if only one node is currently up. Is there anything I need
to tweak to be able to do that?
Thanks much!
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| nate carlson | natecars@xxxxxxxxxxxxxxx | http://www.natecarlson.com |
| depriving some poor village of its idiot since 1981 |
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