You can prevent the host from accessing storage devices or LUNs or from using individual paths to a LUN. Use the esxcli commands to mask the paths. When you mask paths, you create claim rules that assign the MASK_PATH plug-in to the specified paths.
In the procedure, --server=server_name specifies the target server. The specified target server prompts you for a user name and password. Other connection options, such as a configuration file or session file, are supported. For a list of connection options, see Getting Started with vSphere Command-Line Interfaces.
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.
Procedure
Results
Example: Masking a LUN
In this example, you mask the LUN 20 on targets T1 and T2 accessed through storage adapters vmhba2 and vmhba3.
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#esxcli --server=server_name storage core claimrule list
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#esxcli --server=server_name storage core claimrule add -P MASK_PATH -r 109 -t location -A vmhba2 -C 0 -T 1 -L 20 #esxcli --server=server_name storage core claimrule add -P MASK_PATH -r 110 -t location -A vmhba3 -C 0 -T 1 -L 20 #esxcli --server=server_name storage core claimrule add -P MASK_PATH -r 111 -t location -A vmhba2 -C 0 -T 2 -L 20 #esxcli --server=server_name storage core claimrule add -P MASK_PATH -r 112 -t location -A vmhba3 -C 0 -T 2 -L 20
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#esxcli --server=server_name storage core claimrule load
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#esxcli --server=server_name storage core claimrule list
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#esxcli --server=server_name storage core claiming unclaim -t location -A vmhba2 #esxcli --server=server_name storage core claiming unclaim -t location -A vmhba3
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#esxcli --server=server_name storage core claimrule run