Messages in this thread | | | Subject | Re: [Kernel 2.5] Qlogic 2x00 driver | From | GrandMasterLee <> | Date | 16 Oct 2002 23:08:04 -0500 |
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On Wed, 2002-10-16 at 22:54, Michael Clark wrote: > On 10/17/02 11:12, GrandMasterLee wrote: > > On Wed, 2002-10-16 at 11:49, Michael Clark wrote: > >>Seems to be the correlation so far. qlogic driver without lvm works okay. > >>qlogic driver with lvm, oopsorama. > > > > > > Michael, what exactly do your servers do? Are they DB servers with ~1Tb > > connected, or file-servers with hundreds of gigs, etc? > > My customer currently has about 400Gb on this particular 4 node Application > cluster (actually 2 x 2 node clusters using kimberlite HA software). > > It has 11 logical hosts (services) spread over the 4 nodes with services such > as Oracle 8.1.7, Oracle Financials (11i), a busy openldap server, and busy > netatalk AppleShare Servers, Cyrus IMAP server. All are on ext3 partitions > and were previously using LVM to slice up the storage.
On each of the Nodes, correct?
> The cluster usually has around 200-300 active users. > > We have had oops (in ext3) on differing logical hosts which where running > different services. ie. has oopsed on the node mastering the fileserver, > and also on the node mastering the oracle database.
And again, each was running LVM in a shared storage mode for failover?
> Cross fingers, since removing LVM (which was the only change we have made, > same kernel) we have had 3 times our longest uptime and still counting. > > By the sounds, from earlier emails I had posted, users had responded > to me who were also using qlogic and none of them had had any problems, > the key factor was none of them were running LVM - this is what made > me think to try and remove it (it was really just a hunch). We had > gone through months of changing kernel versions, changing GigE network > adapters, driver versions, etc, to no avail, then finally the LVM removal.
Kewl. That makes me feel much better now too.
> Due to the potential nature of it being a stack problem. The problem > really can't just be pointed at LVM but more the additive effect this > would have on some underlying stack problem. > > I believe the RedHat kernels i tried (rh7.2 2.4.9-34 errata was the most > recent) also had this 'stack' problem. I am currently using 2.4.19pre10aa4.
Kewl. I'm using 2.4.19-aa1 (rc5-aa1, but hell, it's the same thing).
> I would hate to reccomend you remove LVM and it not work, but i > must say it has worked for me (i'm just glad i didn't go to XFS instead > of removing LVM as i did - as this was the other option i was pondering).
I hear you. We were pondering changing to EXT3, and not just EXT3, RHAS also. i.e. more money, unknown kernel config, etc. I was going to be *very* upset. Are you running FC2(qla2300Fs in FC2 config) or FC1?
TIA
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