Windows 2008 MPIO commands

#List the disks that are currently claimed by MPIO

C:\Windows\system32>mpclaim -s -d

For more information about a particular disk, use 'mpclaim -s -d #' where # is
he MPIO disk number.

MPIO Disk System Disk LB Policy DSM Name
-------------------------------------------------------------------------------
MPIO Disk21 Disk 22 RR Microsoft DSM
MPIO Disk20 Disk 21 RR Microsoft DSM
MPIO Disk19 Disk 20 RR Microsoft DSM
MPIO Disk18 Disk 19 RR Microsoft DSM
MPIO Disk17 Disk 18 RR Microsoft DSM
MPIO Disk16 Disk 17 RR Microsoft DSM
MPIO Disk15 Disk 16 RR Microsoft DSM
MPIO Disk14 Disk 15 RR Microsoft DSM
MPIO Disk13 Disk 14 RR Microsoft DSM
MPIO Disk12 Disk 13 RR Microsoft DSM
MPIO Disk11 Disk 12 RR Microsoft DSM
MPIO Disk10 Disk 11 RR Microsoft DSM
MPIO Disk9 Disk 10 RR Microsoft DSM
MPIO Disk8 Disk 9 RR Microsoft DSM
MPIO Disk7 Disk 8 RR Microsoft DSM
MPIO Disk6 Disk 7 RR Microsoft DSM
MPIO Disk5 Disk 6 RR Microsoft DSM
MPIO Disk4 Disk 5 RR Microsoft DSM
MPIO Disk3 Disk 4 RR Microsoft DSM
MPIO Disk2 Disk 3 RR Microsoft DSM
MPIO Disk1 Disk 2 RR Microsoft DSM
MPIO Disk0 Disk 1 RR Microsoft DSM



#More information about a particular disk

C:\Windows\system32>mpclaim -s -d 21

MPIO Disk21: 02 Paths, Round Robin, ALUA Not Supported
Controlling DSM: Microsoft DSM
SN: 6064800290102093533031343830
Supported Load Balance Policies: FOO RR RRWS LQD WP LB

Path ID State SCSI Address Weight
---------------------------------------------------------------------------
0000000077030000 Active/Optimized 003|000|000|017 0
0000000077050000 Active/Optimized 005|000|000|017 0