lsmdiskcandidate

The lsmdiskcandidate command lists all of the unmanaged MDisks by MDisk ID.

Syntax


>>- svcinfo -- -- lsmdiskcandidate -- --+----------+-- --------->
                                        '- -nohdr -'      

>--+-----------------------+-----------------------------------><
   '- -delim -- delimiter -'

Parameters

-nohdr: (Optional) By default, headings are displayed for each column of data in a concise style view, and for each item of data in a detailed style view. The -nohdr parameter suppresses the display of these headings.
Note: If there is no data to be displayed, headings are not displayed.
-delim delimiter: (Optional) By default in a concise view, all columns of data are space-separated. The width of each column is set to the maximum possible width of each item of data. In a detailed view, each item of data has its own row, and if the headers are displayed, the data is separated from the header by a space. The -delim parameter overrides this behavior. Valid input for the -delim parameter is a one-byte character. If you enter -delim : on the command line, the colon character (:) separates all items of data in a concise view; for example, the spacing of columns does not occur. In a detailed view, the data is separated from its header by the specified delimiter.

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 has occurred, 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 performed by the cluster does not write anything to a unmanaged MDisk. It is only when you instruct the cluster to add an MDisk to a managed disk group or use a MDisk to create an image mode virtual disk that the storage is actually used.

Check to see which MDisks are available by issuing the svctask detectmdisk command to manually scan the fibre-channel network for any MDisks. Issue the svcinfo lsmdiskcandidate command to show the unmanaged MDisks. These MDisks have not been assigned to an MDisk group. Alternatively, you can issue the svcinfo lsmdisk command to view all of the MDisks.

An invocation example

svcinfo lsmdiskcandidate

The resulting output