6.0.1

Delete Multipathing Claim Rules
Use the esxcli commands to remove a multipathing PSA claim rule from the set of claim rules on the
system.
In the procedure, --server=server_name species the target server. The specied target server prompts you
for a user name and password. Other connection options, such as a conguration le or session le, are
supported. For a list of connection options, see Geing Started with vSphere Command-Line Interfaces.
Prerequisites
Install vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Geing Started with
vSphere Command-Line Interfaces. For troubleshooting, run esxcli commands in the ESXi Shell.
Procedure
1 Delete a claim rule from the set of claim rules.
esxcli --server=server_name storage core claimrule remove
N By default, the PSA claim rule 101 masks Dell array pseudo devices. Do not delete this rule,
unless you want to unmask these devices.
The command takes the following options:
Option Description
-c|--claimrule-class=<str>
Indicate the claim rule class to use in this operation (MP, Filter, VAAI).
-P|--plugin=<str>
Indicate the plugin to use for this operation.
-r|--rule=<long>
Indicate the rule ID to use for this operation.
This step removes the claim rule from the File class.
2 Remove the claim rule from the system.
esxcli --server=server_name storage core claimrule load
This step removes the claim rule from the Runtime class.
Mask Paths
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 specied paths.
In the procedure, --server=server_name species the target server. The specied target server prompts you
for a user name and password. Other connection options, such as a conguration le or session le, are
supported. For a list of connection options, see Geing Started with vSphere Command-Line Interfaces.
Prerequisites
Install vCLI or deploy the vSphere Management Assistant (vMA) virtual machine. See Geing Started with
vSphere Command-Line Interfaces. For troubleshooting, run esxcli commands in the ESXi Shell.
Procedure
1 Check what the next available rule ID is.
esxcli --server=server_name storage core claimrule list
The claim rules that you use to mask paths should have rule IDs in the range of 101 – 200. If this
command shows that rule 101 and 102 already exist, you can specify 103 for the rule to add.
Chapter 17 Understanding Multipathing and Failover
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