Public bug reported: There is a bug when connecting to Cinder volumes over iSCSI with XenAPI where a tapdisk is not correctly spawned. This has been fixed in https://github.com/xapi- project/sm/commit/7a8a158493d03ceeb31bc8a43b7f213e74420bf0 however, users of XenServer 6.5 need a workaround in Nova.
The impact of this is that, without the fix, XAPI is expecting a tapdisk to be spawned, but the Storage Manager does not spawn one. As such, the VM will not be able to connect to this Cinder volume. The correct fix in Nova is to emulate the above commit for users of XenServer 6.5; i.e. set the backend-kind=vbd. This will ensure that the storage manager spawns a tapdisk, and that it can be attached in the correct way ** Affects: nova Importance: Medium Assignee: Bob Ball (bob-ball) Status: New ** Changed in: nova Assignee: (unassigned) => Bob Ball (bob-ball) ** Changed in: nova Importance: Undecided => Medium -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1502929 Title: XenServer 6.5 fails to attach to Cinder volumes Status in OpenStack Compute (nova): New Bug description: There is a bug when connecting to Cinder volumes over iSCSI with XenAPI where a tapdisk is not correctly spawned. This has been fixed in https://github.com/xapi- project/sm/commit/7a8a158493d03ceeb31bc8a43b7f213e74420bf0 however, users of XenServer 6.5 need a workaround in Nova. The impact of this is that, without the fix, XAPI is expecting a tapdisk to be spawned, but the Storage Manager does not spawn one. As such, the VM will not be able to connect to this Cinder volume. The correct fix in Nova is to emulate the above commit for users of XenServer 6.5; i.e. set the backend-kind=vbd. This will ensure that the storage manager spawns a tapdisk, and that it can be attached in the correct way To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1502929/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp