Masking paths to a LUN
You can remove access to a LUN by masking all of its paths to the ESXi host. This can be used when troubleshooting storage issues. This is achieved by using the MASK_PATH PSA plugin to claim the paths corresponding to the intended LUN.
The following flowchart provides an overview of the procedure:
How to do it...
The following procedure will help you mask paths to a LUN:
- Get the NAA ID of the LUN, which needs to be masked, by issuing the following command. The following command will list all the NAA IDs seen by the ESXi:
esxcfg-scsidevs -u - Get the multipathing information of the LUN by issuing the following command.
Syntax:
esxcfg-mpath ...
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