[Linux-cluster] fence_scsi support in multipath env in RHEL5.3
Bryn M. Reeves
bmr at redhat.com
Wed Jun 10 18:25:27 UTC 2009
On Wed, 2009-06-10 at 13:16 +0200, Maciej Bogucki wrote:
> Rajeev P pisze:
> > I wanted to know if fence_scsi is supported in a multipath environment
> > for RHEL5.3 release.
> > In earlier releases of RHEL5 fence_scsi was not supported in a
> > multipath environment for RHEL5.3 release. If I am not wrong, this was
> > because the DM-MPIO driver forwarded the registration/unregistration
> > commands on only on one of the physical paths of a LUN. Ideally it
> > should have passed the commands on all physical paths.
> > For RHEL5.3, is this issue resolved so that I can fence_scsi in
> > multipath environment.
> I don't think it's supported 
>  - https://www.redhat.com/archives/rhelv5-list/2009-January/msg00092.html
Doesn't mention it at all.
Better to check the kernel ChangeLog:
* Tue Oct 10 2006 Don Zickus <dzickus at redhat.com> [2.6.18-1.2725.el5]
- kernel dm multipath: ioctl support (Alasdair Kergon) 
This was included in the RHEL5 GA kernel (2.6.18-8.el5) so the ioctl
passthrough has been there all along in RHEL5.
Unfortunately the bug that introduced the change is private, but the
RHEL4 bug that it was cloned from is accessible:
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