System information

Add PSA Claim Rules
Use the vSphere CLI to add a new PSA claim rule to the set of claim rules on the system. For the new claim
rule to be active, you first define the rule and then load it into your system.
You add a new PSA claim rule when, for example, you load a new multipathing plugin (MPP) and need to
define which paths this module should claim. You may need to create a new claim rule if you add new paths
and want an existing MPP to claim them.
CAUTION When creating new claim rules, be careful to avoid a situation when different physical paths to the
same LUN are claimed by different MPPs. Unless one of the MPPs is the MASK_PATH MPP, this configuration
will cause performance errors.
Procedure
1 To define a new claim rule, on the vSphere CLI, run the following command:
esxcli corestorage claimrule add -r <claimrule_ID> -t <type> <required_option (based on type)>
-P <MPP_name>
For information on the options that the command requires, see “esxcli corestorage Command-Line
Options,” on page 86.
2 To load the new claim rule into your system, run the following command:
esxcli corestorage claimrule load
This command has no options. It loads all newly created claim rules from your system's configuration file.
Example B-4. Adding a PSA Claim Rule
In the following example, you define the claim rule # 500, which specifies that the NMP module claims all
paths to the NewMod model of the NewVend storage array. You then load this claim rule into your system.
1 # esxcli corestorage claimrule add -r 500 -t vendor -V NewVend -M NewMod -P NMP
2 # esxcli corestorage claimrule load
If you now run the esxcli corestorage claimrule list command, you can see the new claim rule appearing
on the list.
NOTE The two lines for the claim rule, one with the Class of runtime another with the Class of file, indicate
that the new claim rule has been loaded into the system and is active.
Rule Class Type Plugin Matches
0 runtime transport NMP transport=usb
1 runtime transport NMP transport=sata
2 runtime transport NMP transport=ide
3 runtime transport NMP transport=block
101 runtime vendor MASK_PATH vendor=DELL model=Universal Xport
101 file vendor MASK_PATH vendor=DELL model=Universal Xport
500 runtime vendor NMP vendor=NewVend model=NewMod
500 file vendor NMP vendor=NewVend model=NewMod
Fibre Channel SAN Configuration Guide
82 VMware, Inc.