On Sep 29, 2008, at 3:54 PM, Martin, Terry R. (CMS/CTR) (CTR) wrote:
Hi
Over the last month or so we have had CHECK SUM ERRORS on 3 of our z/
Linux hosts. This error stops the Linux host from coming back up
after a re-boot or log off. After working with REDHAT they found
that there was 2 bit over lay of what amounts to the VTOC which
points to the UUIDs. Each time this has happened it has been the
same over lay.
The common thing on these hosts are that they all run Oracle 10g,
REDHAT REL4, and FDR/UPSTREAM. When this happens we must boot in
RESCUE mode and re-build the UUIDs (not sure of this process by
Linux guy does this).
I was just wondering if anyone has seen this type of issue. This is
our POC but if this does not get resolved we will be hard pressed to
move forward.
Those disks don't participate in some sort of Oracle clustering
arbitration scheme, do they? That sort of very low level overwriting
of the disk is the sort of thing I'd expect to see in something was
going wrong with a cluster filesystem that used the platters to do
who's-got-the-rock negotiation.
Adam
