lsmdiskcandidate
Use the lsmdiskcandidate command to list all unmanaged MDisks by MDisk ID.
Syntax
Parameters
- -delim delimiter
- (Optional) Specify a delimiter to separate data in the output.
- -nohdr
- (Optional) Suppress the headings in the output.
Description
This command displays a list of MDisks that are unmanaged. Only the MDisk IDs are displayed.
When back-end controllers
are added to the Fibre Channel SAN and are included in the same switch zone as a cluster, the
cluster automatically detects the back-end controller to determine which storage is presented to
the node. The SCSI logical units that are presented by the back-end controller are displayed as
unmanaged MDisks. However, if the configuration of the back-end controller is modified after
this occurs, the cluster might be unaware of these configuration changes. You can then request
that the cluster rescan the Fibre Channel SAN to update the list of unmanaged MDisks.
Note: The
automatic detection that is performed by the cluster does not write anything to an unmanaged
MDisk. It is only when you instruct the cluster to add an MDisk to a storage pool or use a
MDisk to create an image mode volume that the storage is used.
Check to see which MDisks are available by issuing the detectmdisk command to manually scan the Fibre Channel network for any MDisks. Issue the lsmdiskcandidate command to show the unmanaged MDisks. These MDisks are not assigned to a storage pool. Alternatively, you can issue the lsmdisk command to view all of the MDisks.