System information

Procedure
u
Use the esxcli corestorage claimrule list to list claim rules.
Example B-1 shows the output of the command.
Example B-1. Sample Output of the esxcli corestorage claimrule list Command
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
200 runtime vendor MPP_1 vendor=NewVend model=*
200 file vendor MPP_1 vendor=NewVend model=*
201 runtime location MPP_2 adapter=vmhba41 channel=* target=* lun=*
201 file location MPP_2 adapter=vmhba41 channel=* target=* lun=*
202 runtime driver MPP_3 driver=megaraid
202 file driver MPP_3 driver=megaraid
65535 runtime vendor NMP vendor=* model=*
This example indicates the following:
n
The NMP claims all paths connected to storage devices that use the USB, SATA, IDE, and Block SCSI
transportation.
n
The MASK_PATH module claims all paths returning SCSI inquiry data with a vendor string of DELL and
a model string of Universal Xport. The MASK_PATH module is used to mask paths from your host.
n
The MPP_1 module claims all paths connected to any model of the NewVend storage array.
n
The MPP_3 module claims the paths to storage devices controlled by the Mega-RAID device driver.
n
Any paths not described in the previous rules are claimed by NMP.
n
The Class column in the output shows which rules are defined and which are loaded. The file parameter
in the Class column indicates that the rule is defined. The runtime parameter indicates that the rule has
been loaded into your system. For a user- defined claim rule to be active, two lines with the same rule
number should exist, one line for the rule with the file parameter and another line with runtime. Several
low numbered rules have only one line with the Class of runtime. These are system defined claim rules
that you cannot modify.
Display Multipathing Modules
Use the vSphere CLI to list all multipathing modules loaded into the system. Multipathing modules manage
physical paths that connect your host with storage.
Procedure
u
To list all multipathing modules, run the following command:
vicfg-mpath --server <server> --list-plugins,
where <server> is your vSphere CLI administration server. You might be prompted for a user name and
password.
At a minimum, this command returns the NMP module. If any third-party MPPs have been loaded, they are
listed as well.
Fibre Channel SAN Configuration Guide
80 VMware, Inc.