HP MPX200 Multifunction Router - Manual (Page 25)

Table 4 Example: Four WWPNs per VPG
WWPN Virtual Port Number VPG
21:00:00:c0:dd:13:2c:60 Blade1-FC1-VP1 VPGroup1
21:00:00:c0:dd:13:2c:61 Blade1-FC2-VP1
21:00:00:c0:dd:13:2c:68 Blade2-FC1-VP1
21:00:00:c0:dd:13:2c:69 Blade2-FC2-VP1
21:01:00:c0:dd:13:2c:60 Blade1-FC1-VP2 VPGroup2
21:01:00:c0:dd:13:2c:61 Blade1-FC2-VP2
21:01:00:c0:dd:13:2c:68 Blade2-FC1-VP2
21:01:00:c0:dd:13:2c:69 Blade2-FC2-VP2
21:02:00:c0:dd:13:2c:60 Blade1-FC1-VP3 VPGroup3
21:02:00:c0:dd:13:2c:61 Blade1-FC2-VP3
21:02:00:c0:dd:13:2c:68 Blade2-FC1-VP3
21:02:00:c0:dd:13:2c:69 Blade2-FC2-VP3
21:03:00:c0:dd:13:2c:60 Blade1-FC1-VP4 VPGroup4
21:03:00:c0:dd:13:2c:61 Blade1-FC2-VP4
21:03:00:c0:dd:13:2c:68 Blade2-FC1-VP4
21:03:00:c0:dd:13:2c:69 Blade2-FC2-VP4
Using VPGs on an FC array
If an FC storage array is limited to 256 LUNs mapped to a host, enable multiple VPGs from the
MPX200. Each VPG becomes a separate host on the array. The VPGs enable the MPX200 to “see”
up to 1,024 LUNs from a single array (256 per VPG).
NOTE: In the scenario where at least one LUN under migration belongs to an HP-UX host, and
other LUNs belong to other host type operating systems (Windows, Linux, Solaris, or VMware),
use VPGs to create different host types for the HP-UX host and other hosts. Use one VPG to present
LUNs for the HP-UX host and different VPGs to present LUNs for the remaining OSs.
For more information on configuring VPGs on an FC array, see the chapter covering configuration
in the HP MPX200 Multifunction Router User Guide.
Presented targets
Presented targets includes both virtual presentation and global presentation.
Virtual presentation
For online data migration, you must insert the MPX200 in the server’s data path. As a result, the
servers access the source LUNs through the MPX200. To insert the MPX200 in the server data path
and enable access to the source LUNs through the MPX200, you must first create a virtual
presentation of the source array target ports. This virtual presentation is referred to as a presented
target. A VPG and source array target port represents each presented target. Thus, a single source
array target port may have up to four presented targets, one associated with each VPG. (VPG1,
VPG2, VPG3, and VPG4). The example in
Figure 11 (page 26) shows how to create multiple
presented targets by combining a target port on the source array with the MPX200 VPG.
Presented targets 25