How can the answer be improved? If the PVS target is using Cache on Device RAM with overflow on hard disk or Cache on device hard disk, the PVS target software either does not find an appropriate hard disk partition or it is not formatted using NTFS. As a result, it will fail over to Cache on the server.
Disk Cache Location
This provides a more straightfoward method of obtaining vdev GUIDs thanzdb. This option is the only method by which a system administrator isable to obtain vdev GUIDs for missing cache devices because zdb doesprint information about them (see ).The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands make the use of vdev GUIDsnecessary.
Linux's /dev design makes it difficult to anticipate allpossible edge cases where the device names would not be accepted.Providing a simple way of obtaining vdev GUIDs will minimize the pain ofsystem administrators in such edge cases.Note that this adds a new boolean parameter to zpoolvdevname, whichchanges the libzfs interface.Signed-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands make the use of vdev GUIDsnecessary.
The current method of obtaining them uses zdb, but this doesnot work in all cases (see ).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases.Note that this adds a new boolean parameter to zpoolvdevname, whichchanges the libzfs interface.Signed-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands make the use of vdev GUIDsnecessary. The current method of obtaining them uses zdb, but this doesnot work in all cases (see ).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to zpoolvdevname, whichchanges the libzfs interface.Signed-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands make the use of vdev GUIDsnecessary. The current method of obtaining them uses zdb, but this doesnot work in all cases (see ).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb.
It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to zpoolvdevname, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands make the use of vdev GUIDsnecessary. The current method of obtaining them uses zdb, but this doesnot work in all cases (see ).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to zpoolvdevname, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao.
The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands make the use of vdev GUIDsnecessary. The current method of obtaining them uses zdb, but this doesnot work in all cases (see ).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands.
The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. This provides a more straightfoward method of obtaining vdev GUIDs thanzdb.
This option is the only method by which a system administrator isable to obtain vdev GUIDs for missing cache devices because zdb doesprint information about them (see ).The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands make the use of vdev GUIDsnecessary. Linux's /dev design makes it difficult to anticipate allpossible edge cases where the device names would not be accepted.Providing a simple way of obtaining vdev GUIDs will minimize the pain ofsystem administrators in such edge cases.Note that this adds a new boolean parameter to zpoolvdevname, whichchanges the libzfs interface.Signed-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands.
The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao.
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The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao.
The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands.
The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. Fixed:)I tried 'mknod /dev/gpt/l2arc b 8 36' first, but that didn't work.Originally the ZFS pool was created with following command:zpool create data mirror gpt/disk1.nop gpt/disk2.nop cache gpt/l2arcSteps to fix:. created an empty partition somewhere: /dev/sdb4. created a directory: /dev/gpt.
Clear Disk Cache
symlinked /dev/sdb4 to /dev/gpt/l2arc. zpool export. zpool import. zpool status showed device 'l2arc' was ONLINE!!!!. retrieved GUID of device 'l2arc':zdb -l /dev/gpt/l2arc grep guid. zpool removeDone:).
The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb.
It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb.
It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb.
It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. This provides a more straightfoward method of obtaining vdev GUIDs thanzdb. This option is the only method by which a system administrator isable to obtain vdev GUIDs for missing cache devices because zdb doesprint information about them (see ).The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands make the use of vdev GUIDsnecessary. Linux's /dev design makes it difficult to anticipate allpossible edge cases where the device names would not be accepted.Providing a simple way of obtaining vdev GUIDs will minimize the pain ofsystem administrators in such edge cases.Note that this adds a new boolean parameter to zpoolvdevname, whichchanges the libzfs interface.Signed-off-by: Richard Yao.
The use of vdev GUIDs are a necessary workaround in edge cases where thenames provided by `zpool status` are not accepted by the zpooldetach/offline/remove/replace commands. The current method of obtainingthem uses zdb, but this does not work in all cases (see).This provides a method of obtaining vdev GUIDs that is more reliable andstraightforward than zdb. It would be better to fix all edge cases thatrequire the use of GUIDs as a workaround, but Linux's /dev design makesit difficult to anticipate such edge cases, which makes this optionnecessary.Note that this adds a new boolean parameter to `zpoolvdevname`, whichchanges the libzfs interface.ClosesSigned-off-by: Richard Yao. I am having the exact same problem, now with version 0.6.5.11-1 on debian9 (proxmox).I had exact same config on 2 nodes of my cluster.I was able to remove log and cache pool members for a failed disk (e.g. Just removed the log/cache disk)On one node this was not a problem at all. Imported the pool with -m option, then removed by GUIDs.But on the other node (which was exactly same configuration level) I was NOT able to remove the log device. Removing it by GUID doen't give an error, but after that zpool status is still showing the device as UNAVAI but is not listing in zdb any more.Any attempt to have it removed failed until now.Is this still a known bug?
Any mitigation known?