Christophe, The SCSI Hardware handler is created for devices with special needs. It is available in 2.6.27. One can be written for any device to translate the scsi sense code to a different error code that the dm understands. Is this something that coule help this situation ? Have a look at drivers/scsi/device_handler directory. Hope this helps, chandra On Tue, 2008-10-21 at 23:19 +0200, Christophe Varoqui wrote: > 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 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
