A physical volume in an AIX Box (hdisk#) could be identified with Physical Volume ID, UDID (Unique Device Identifier), IEEE Identifier.
PVID : 32 Digit Identified on which the first 16 Digit remains the same on all the Physical Volumes and the remaining 16 Digit vary among the physical volumes.
UDID : This is value that is assigned to the physical volumes that are managed by MPIO.
$ chdev -dev hdisk# -verbose : Command to view the PVID, UDID and IEEE ID for a physical volume.
# lsattr -EHl hdisk# : Command to view the PVID and UDID for a disk.
$ chkdev -dev hdisk1 -verbose
NAME: hdisk1
IDENTIFIER: 210ChpO-c4HkKBc904N37006NETAPPfcpPHYS2VIRT_CAPABLE: YES
VIRT2NPIV_CAPABLE: NA
VIRT2PHYS_CAPABLE: NAPVID: 00c58e40599f2f900000000000000000
UDID: 2708ECVBZ1SC10IC35L146UCDY10-003IBXscsi
IEEE:
VTD:PHYS2VIRT_CAPABLE: Shows that the resource could be virtualized.
VIRT2NPIV_CAPABLE: Shows that the resource is N-Port Virtualization supportive.
VIRT2PHYS_CAPABLE : Shows the resource could be used as a physical object.
PVID : 32 Digit Identified on which the first 16 Digit remains the same on all the Physical Volumes and the remaining 16 Digit vary among the physical volumes.
UDID : This is value that is assigned to the physical volumes that are managed by MPIO.
$ chdev -dev hdisk# -verbose : Command to view the PVID, UDID and IEEE ID for a physical volume.
# lsattr -EHl hdisk# : Command to view the PVID and UDID for a disk.
$ chkdev -dev hdisk1 -verbose
NAME: hdisk1
IDENTIFIER: 210ChpO-c4HkKBc904N37006NETAPPfcpPHYS2VIRT_CAPABLE: YES
VIRT2NPIV_CAPABLE: NA
VIRT2PHYS_CAPABLE: NAPVID: 00c58e40599f2f900000000000000000
UDID: 2708ECVBZ1SC10IC35L146UCDY10-003IBXscsi
IEEE:
VTD:PHYS2VIRT_CAPABLE: Shows that the resource could be virtualized.
VIRT2NPIV_CAPABLE: Shows that the resource is N-Port Virtualization supportive.
VIRT2PHYS_CAPABLE : Shows the resource could be used as a physical object.
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