From: Andrew Raine (Andrew.Raine@mrc-dunn.cam.ac.uk)
Date: Thu Nov 21 2002 - 07:29:13 EST
Dear Managers,
It took me longer to write this summary than it did to get the first
to my question!
The question itself:
Dear Managers,
We had a power-cut today and, as our UPS was out of action, our cluster
went down.
Once the power was back and stable, I tried to reboot everything.
Member1 of the cluster came up fine, but member2 says:
ics_mct: icsinfo set for node 1
ics_mct: Declaring this node up 1
panic (cpu 0): CNX MGR: Another node has already booted from this disk
syncing disks... done
drd: Clean Shutdown
Can anyone suggest why this might be, and what I could do about it? I
note that the boot message mentions "node 1" but it really *is*
member2...
Background: member1 - ES40, 4 processors
member2 - DS20, 2 processors
storage - HSG80
Running Tru64 5.1 pk3
Thanks to Lee Brewer, Tom Blinn, Tim Cutts and Jason Orendorf who all
had different takes on the same underlying cause. To quote Lee Brewer:
> Did you happen to edit the sysconfigtab lately....
Inspired! Yes I did. In fact, what I did was copy the one from the
other member of the cluster (I'd been mucking around with the proc
subsystem to increase memory limits). Of course, the boot disk is
encoded there, so it was trying to use the other member's disk, and
rightly telling me that it had already been booted. I had been waiting
for a quiet time to reboot this member - the power cut just forced this
on me.
As another respondent said of himself (having made the same mistake) I
win the muppet-of-the-week award!
As ever, very many thanks,
Andrew
-- Dr. Andrew Raine, Head of IT, MRC Dunn Human Nutrition Unit, Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 2XY, UK phone: +44 (0)1223 252830 fax: +44 (0)1223 252835 web: www.mrc-dunn.cam.ac.uk email: Andrew.Raine@mrc-dunn.cam.ac.uk
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