Listing node-dependent VDisks using the CLI

You can use the command-line interface (CLI) to list the virtual disks (VDisks) that are dependent on the status of a node.

If a node goes offline or is removed from a cluster, all VDisks that are dependent on the node go offline. Before taking a node offline or removing a node from a cluster, run the lsnodedependentvdisks command to identify any node-dependent VDisks.

By default, the lsnodedependentvdisks command also checks all available quorum disks. If the quorum disks are accessible only through the specified node, the command returns an error.

Various scenarios can produce node-dependent VDisks. The following examples are common scenarios in which the lsnodedependentvdisks command will return node-dependent VDisks:

The node contains solid-state drives (SSDs) and also contains the only synchronized copy of a mirrored VDisk.
The node is the only node that can access an MDisk on the SAN fabric.
The other node in the I/O group is offline (all VDisks in the I/O group are returned).
Pinned data in the cache is stopping the partner node from joining the I/O group.

To resolve (1), allow VDisk mirror synchronizations between SSD MDisks to complete. To resolve (2-4), bring any offline MDisks online and repair any degraded paths.

Note: The command lists the node-dependent VDisks at the time the command is run; subsequent changes to a cluster require running the command again.

Issue the svcinfo lsnodedependentvdisks CLI command.
The following example shows the CLI format for listing the VDisks that are dependent on node01:
```
svcinfo lsnodedependentvdisks -node01 :
```
The following example shows the output that is displayed:
```
vdisk_id       vdisk_name
0              vdisk0
1              vdisk1
```
If the svcinfo lsnodedependentvdisks command returns an error, you must move your quorum disks to MDisks that are accessible through all nodes. Rerun the command until no errors are returned.
Reissue the svcinfo lsnodedependentvdisks command. When the command returns no VDisks, the cluster is free from any node-dependent VDisks.
The following example shows the command syntax for listing the VDisks that are dependent on node01:
```
svcinfo lsnodedependentvdisks -node01 :
```
The following example shows the command output if there are no node-dependent VDisks in the cluster:
```
vdisk_id       vdisk_name
```