Chapter 7. Volumes 315
On a Linux host running native multipath driver, you can use the output of command 
multipath -ll, as shown in Example 7-38.
Example 7-38   Volume ID as returned by multipath -ll
mpath1 (360050768018301BF2800000000000004)  IBM,2145
[size=2.0G][features=0][hwhandler=0]
\_ round-robin 0 [prio=200][ enabled]
\_ 4:0:0:1 sdd  8:48   [active][ready]
\_ 5:0:0:1 sdt  65:48  [active][ready]
\_ round-robin 0 [prio=40][ active]
\_ 4:0:2:1 sdak 66:64  [active][ready]
\_ 5:0:2:1 sdal 66:80  [active][ready]
After you know the volume ID, complete the following steps:
1. Run the lshostvdiskmap command to list volumes mapped to the host. Example 7-39 lists 
volumes mapped to host Almaden.
Example 7-39   The lshostvdiskmap command
IBM_2145:ITSO_CLUSTER:superuser>lshostvdiskmap -delim , Almaden
id,name,SCSI_id,vdisk_id,vdisk_name,vdisk_UID
2,Almaden,0,26,volume_B,60050768018301BF2800000000000005
2,Almaden,1,27,volume_A,60050768018301BF2800000000000004
2,Almaden,2,28,volume_C,60050768018301BF2800000000000006
Look for the vDisk UID that matches volume UID that was identified and note the volume 
name (or ID) for a volume with this UID.
2. Run the lsvdiskmember vdiskname command to list of the MDisks that contain extents 
allocated to the specified volume, as shown in Example 7-40.
Example 7-40   The lsvdiskmember command 
IBM_2145:ITSO_CLUSTER:superuser>lsvdiskmember volume_A
id
0
1
2
3
4
10
11
13
15
16
17
Note: Volume ID shown in the output of multipath -ll is generated by Linux scsi_id. For 
systems that provide the VPD via page 0x83 (such as Spectrum Virtualize devices), the ID 
that is obtained from the VPD page is prefixed with number 3, which is the Network 
Address Authority (NAA) type identifier. Therefore, the volume NAA identifier (that is, 
volume ID obtained via the SCSI INQUIRY command) starts at the second displayed digit. 
In Example 7-38, the volume ID starts with digit 6.