Hi, On Mon, Jun 02, 2008 at 04:38:04PM +0200, Robert Heinzmann (ml) 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 ?
Not currently. There was some discussion and an implementation by our colleagues of NTT (take a look in the list archives), but the thread petered out inconclusively. Which doesn't mean that the code isn't usable. Don't know if anybody's using it. Thanks, Dejan > Regards, > Robert > _______________________________________________ > 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
