Step 4. List And Create Lun Id Mappings; Physical Device Information; Lun Id Mappings - HP StorageWorks 6400/8400 - Enterprise Virtual Array User Manual

Hp storageworks mpx200 multifunction router user guide (5697-0202, february 2010)
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most cases, the OS automatically discovers the relationship between the volume and the migrated
LUN(s) on a destination storage array.
Table 39 Physical device information
Server

Step 4. List and create LUN ID mappings

Create a list of LUNs containing the size and mapping information that shows how the LUNs are seen
by the server and the MPX200, as shown in
a different LUN ID to a server other than to MPX200, it is recommended that you use the same LUN
ID, if possible. This will be helpful while creating new LUNs on a destination array and while presenting
source and destination LUNs to MPX200 data migration service. For operating systems other than
Windows, HP highly recommends that source and destination LUNs are the same size.
NOTE:
You should complete the information for the source and destination LUN during the planning
phase of data migration.
Determine the unique volume ID for the source storage array to make it easier to refer to the LUN,
because on large arrays, different LUNs with the same LUN ID are sometimes presented to different
hosts.
Each MPX200 has up to four virtual port groups (VP Groups), each of which can be seen by an
array as a different host entity. You can expose the different LUNs as the same LUN ID on each
VP Group, enabling you to maintain the same LUN ID exposure to both the host and the MPX200.
Table 40 LUN ID mappings
Server
Source
LUN
Seen by
the Serv-
er as
LUN ID
372
Data migration best practices
Application
Mount Point
nl
(if any)
Volume
Capacity
Source LUN Presen-
ID,
ted to MPX200 as
Source
Array
MPX200 VP Group
VP
group
Volume
Raw Device Node
Table
40. Although a specific LUN may be presented at
Destination LUN
Presented to
LUN ID and
MPX200 as LUN ID
and MPX200 VP
Group
LUN ID
VP
group
Physical Disk or
LUN ID
Destina-
Capacity
tion LUN
Presen-
ted to
Server
as LUN
LUN ID
ID

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