Hi all, The attached RA deals with SCSI-2 reservation. It's a POC, not carefully tested so far. So just FYI.
I'd like to implement SCSI-2 & 3 reservation as STONITH plugins in the near future, when I get my hands free. ;) 2008/6/3 Dejan Muhamedagic <[EMAIL PROTECTED]>: > Hi, > > On Mon, Jun 02, 2008 at 02:00:14PM -0400, Greg Freemyer wrote: >> On Mon, Jun 2, 2008 at 10:38 AM, Robert Heinzmann (ml) <[EMAIL PROTECTED]> >> wrote: >> > Hi, >> > >> > besides STONITH another (as I would say additional) approach in shared scsi >> > clusters is to use scsi reservations (2 or 3) to reserve a disk for a host >> > and avoid data integrity problems. >> > >> > A situation were SCSI reservations are useful is the automatic mounting of >> > a >> > cluster protected fs. If the administrator left the mount entry in >> > /etc/fstab for a cluster protected FS and additionally the application >> > accessing the FS is still enabled in sysv init, the fs is mounted and the >> > app is startet during system boot. This is true also if STONITH was >> > susccessful (not reset not power down). To avoid this SCSI reservations can >> > be used (of course a cluster _SHOULD_ be configured correctly and tested >> > extensivly, however things happen - think of it as an airbag). >> > >> > Is there a SCSI2 or SCSI PR reservation OCF agent out there ? Has anyone >> > configured something like this in HB2 ? >> > >> > Regards, >> > Robert >> >> There is the FC equivalent that controls visibility via the FC-fabric. > > Somebody wanted to port the one from the Redhat's Cluster Suite, > but didn't here from them since then. Is there another one? > > Thanks, > > Dejan > >> Would that work for you? If not, you might consider it as a starting point. >> >> Greg >> -- >> Greg Freemyer >> Litigation Triage Solutions Specialist >> http://www.linkedin.com/in/gregfreemyer >> First 99 Days Litigation White Paper - >> http://www.norcrossgroup.com/forms/whitepapers/99%20Days%20whitepaper.pdf >> >> The Norcross Group >> The Intersection of Evidence & Technology >> http://www.norcrossgroup.com >> _______________________________________________ >> Linux-HA mailing list >> [email protected] >> http://lists.linux-ha.org/mailman/listinfo/linux-ha >> See also: http://linux-ha.org/ReportingProblems > _______________________________________________ > Linux-HA mailing list > [email protected] > http://lists.linux-ha.org/mailman/listinfo/linux-ha > See also: http://linux-ha.org/ReportingProblems >
scsi2reservation
Description: Binary data
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