On Mon, 2015-11-30 at 02:54 +0000, Sam McLeod wrote: > >Please don't top post. It's annoying. > > Sorry, don't use mailing lists much these days. > > > >I'm still not sure what you mean by 'SCSIID'. > > The SCSIID is comprised of: > > - NAA 6, IEEE Company_id: 0x1405 > - Vendor Specific Identifier: 0xbff3f42a4 > - Vendor Specific Identifier Extension: 0x9d84cfcb64e2b933 > > Which is an ID of: > > 0x6001405bff3f42a49d84cfcb64e2b933 > Ok, good. > > >That is, you need to make sure that: > > > > /sys/kernel/config/target/core/$HBA/$DEV/wwn/vpd_unit_serial > > > >contains the same value across device + export fail-over. > > > >Have you confirmed that yet..? > > We can set the vpd_unit_serial, that is not our issue. > What needs to be set on the target is the Company_id, VSI and VSIE as above. The Company ID, VSI, and VSIE are generated by LIO based upon the current vpd_unit_serial configfs attribute value. So as long as vpd_unit_serial is persistent, and the same value for backend devices across export failover to different nodes, Xen will always see the same EVPD information. Are you saying that vpd_unit_serial is already persistent across export failover, but Xen is still having problems..? Have you confirmed with sg_inq -i both before and after the export failover occurs..? -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
