Quoting Steve steeeeeveee@gmx.net:
I have already installed GFS on a cluster in the past, but never on DRBD.
Me too (I did in on a real physical SAN before).
Hmm... when I started with GlusterFS I thought that using more then
two nodes is something that I will never need.
GlusterFS is really designed to allow such things... So is GFS. But these are filesystems...
DRBD isn't really designed to scale this way. A SAN or NAS is.
But now that I have GlusterFS up and running and I am using more
then two nodes I really see a benefit in being able to use more then
two nodes. For me this is a big advantage of GlusterFS compared to
DRBD.
You are comparing filesystems to storage/mirroring systems. Not a valid comparison...
My proposed solution to the more-than-two-nodes is gnbd...
Never heard of it before. Don't like the fact that I need to patch
the Kernel in order to get it working.
GNDB is a standard part of GFS. No more patching than GFS or DRBD in any case... Red Hat and clones all come with support for GFS and GNDB built in. DRBD is another issue...
GNDB should be known to anyone using GFS, since it is part of the standard reading (manual, etc) for GFS.
If that doesn't meet your needs, then DRBD probably isn't the proper choice. You didn't mention anything about number of nodes in your original post, IIRC.
I did not post the original post. I just responded to the original
post saying that GlusterFS works for me.
I didn't mean to single you out in my reply... Assume the "you" is a generic you, not specifically aimed at any one individual...
Sorry if I miss-attributed anything to you... Very busy, and trying to reply to these emails as fast as I can when I get a minute or two of time, so I may make some mistakes as to who said what...
I'm not trying to convert or convince any one... I'm just replying and expressing my experiences and thoughts... If glusterfs works for you, then great. If not, there are alternatives... I happen to champion some, others champion others...
Personally, I like SAN storage, but the price has always kept me from using it (except once, when I was setting it up on someone else's SAN).
-- Eric Rostetter The Department of Physics The University of Texas at Austin
Go Longhorns!