[BUG] dm-mpath and scsi persistent reservation

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

the dm-mpath multipathing driver enqueues write ios returned by
the scsi layer with a "reservation conflict" error (on assymetric
storage controllers, like Clariion, where queue_if_no_path is enabled).

This is wrong, and a potent data-corrupter : wio sent to a reserved
scsi device should never be retried on this same device.

Can someone advise on a viable solution for this problem ? I
understand the Device Mapper being a block remapper, it is not expected
to receive scsi errors directly ... but maybe some kind of translation
might be acceptable. Or is there hope in the request-based remapper ?

Jens, James, Alasdair, ... as maintainers of the involved subsystems,
would you care to give some advise on the issue.

Regards,
cvaroqui
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]
  Powered by Linux