When you need the host to access the masked storage device, unmask the paths to the device.

1

Delete the MASK_PATH claim rule.

esxcli conn_options corestorage claimrule delete -r rule#

2

Verify that the claim rule was deleted correctly.

esxcli conn_options corestorage claimrule list

3

Reload the path claiming rules from the configuration file into the VMkernel.

esxcli conn_options corestorage claimrule load

4

Run the esxcli corestorage claiming unclaim command for each path to the masked storage device.

For example:

esxcli conn_options corestorage claiming unclaim -t location -A vmhba0 -C 0 -T 0 -L 149

5

Run the path claiming rules.

esxcli conn_options corestorage claimrule run

Your host can now access the previously masked storage device.