[CentOS] Unexplained reboots in DRBD82 + OCFS2 setup
nate
centos at linuxpowered.netWed Jun 24 14:22:48 UTC 2009
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Kris Buytaert wrote: > > > We're trying to setup a dual-primary DRBD environment, with a shared > disk with either OCFS2 or GFS. The environment is a Centos 5.3 with > DRBD82 (but also tried with DRBD83 from testing) . Both OCFS2 and GFS are meant to be used on SANs with shared storage(same LUNs being accessed by multiple servers), I just re-confirmed that DRBD is not a shared storage mechanism but just a simple block mirroring technology between a couple of nodes(as I originally thought). I think you are mixing incompatible technologies. Even if you can get it working, just seems like a really bad idea. Perhaps what you could do is setup an iSCSI initiator on your DRBD cluster, export a LUN to another cluster running OCFS2 or GFS(last I checked GFS required at least 3 nodes less than that and the cluster goes to read-only mode, I didn't see any minimum requirements for OCFS2). Though the whole concept of DRBD just screams to me crap performance compared to a real shared storage system, wouldn't touch it with a 50 foot pole myself. nate
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