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Table Of Contents

5 If a claim rule for the masked path exists, remove the rule.

esxcli storage core claiming unclaim

6 Run the path claiming rules.

esxcli storage core claimrule run

After you assign the MASK_PATH plug-in to a path, the path state becomes irrelevant and is no longer

maintained by the host. As a result, commands that display the masked path's information might show the

path state as dead.

Example: Masking a LUN

In this example, you mask the LUN 20 on targets T1 and T2 accessed through storage adapters vmhba2

and vmhba3.

#esxcli storage core claimrule list

#esxcli torage core claimrule add -P MASK_PATH -r 109 -t location -A vmhba2 -C 0 -T 1 -L 20

#esxcli storage core claimrule add -P MASK_PATH -r 110 -t location -A vmhba3 -C 0 -T 1 -L 20

#esxcli storage core claimrule add -P MASK_PATH -r 111 -t location -A vmhba2 -C 0 -T 2 -L 20

#esxcli storage core claimrule add -P MASK_PATH -r 112 -t location -A vmhba3 -C 0 -T 2 -L 20

#esxcli storage core claimrule load

#esxcli storage core claimrule list

#esxcli storage core claiming unclaim -t location -A vmhba2

#esxcli storage core claiming unclaim -t location -A vmhba3

#esxcli storage core claimrule run

Unmask Paths

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

Note When you run an unclaim operation using a device property, for example, device ID or vendor, the

paths claimed by the MASK_PATH plug-in are not unclaimed. The MASK_PATH plug-in does not track

any device property of the paths that it claims.

Prerequisites

Install vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Getting Started with

vSphere Command-Line Interfaces. For troubleshooting, run esxcli commands in the ESXi Shell.

vSphere Storage

VMware, Inc. 228