As a matter of fact that is one of the commonalties of these hosts. There is Oracle Clustering going on in these hosts. Can you explain more about this?
Thanks, Terry ________________________________ From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of Adam Thornton Sent: Monday, September 29, 2008 5:30 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Question 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
