HP EVA to 3PAR StoreServ Online Import Migration Guide (T5494-96604, July 2013)

19. Perform the following steps on the AIX host:
a. Rescan 3PAR disks using the cfgmr command.
b. Use the mapping information obtained while performing the steps on the AIX host and
import the volume groups using the importvg –y vgname pvname command, where
pvname corresponds to the 3PAR disk whose PVID is mapped to vgname.
c. After the mapping information, if a volume group is mapped to multiple disks, specify a
disk from the list of disks. The importvg automatically identify the remaining set of disks
that were mapped to the given volume group.
The following example illustrates the mapping:
Example 1 VG to PVID mapping before removing the EVA disks from the system
Perform the following steps on the AIX host:
• Rescan 3PAR disks using the cfgmr command
• Use the mapping information obtained while performing the steps on the AIX host
and import the volume groups using the importvg –y vgname pvname command,
where pvname corresponds to the 3PAR disk whose PVID is mapped to vgname. If
a volume group is mapped to multiple disks, specify any one of these disks. The
importvg will automatically identify the remaining set of disks that were mapped
to the given volume group.
The following example illustrates this mapping:
Example 2 VG to PVID mapping before removing the EVA disks from the system
# lspv
hdisk0 00f825bdd5f7e96e rootvg active
hdisk1 00f825bd4a05917b None
hdisk2 00f825bd5dfc80c6 AIX1VG active
hdisk3 00f825bd5dfc82c1 AIX2VG active
Note that the AIX1VGvolume group is mapped to the disk with PVID
00f825bd5dfc80c6, and AIX2VG is mapped to the disk with PVID
00f825bd5dfc82c1. While the disks are re-scanned after zoning in the host and
3PAR destination array, the lspv command will be as follows:
# lspv
hdisk0 00f825bdd5f7e96e rootvg active
hdisk1 00f825bd4a05917b None
hdisk7 00f825bd5dfc80c6 None
hdisk8 00f825bd5dfc82c1 None
Import the VGs by specifying the corresponding disks with the same PVIDs as follows:
# importvg -y AIX1VG hdisk7
AIX1VG
# importvg -y AIX2VG hdisk8
AIX2VG
# lspv
hdisk0 00f825bdd5f7e96e rootvg active
hdisk1 00f825bd4a05917b None
hdisk7 00f825bd5dfc80c6 AIX1VG active
hdisk8 00f825bd5dfc82c1 AIX2VG active
• If the applications use EVA disks in raw format, re-configure them to point to the
corresponding 3PAR disk having the same PVID.
• Restart the applications that were stopped in Step 12a.
20 Performing the data migration