Maximizing Efficiency Through Data Replication Manager Data Movement Application Notes

Procedures and Examples
44 Application Notes - Maximizing Efficiency Through Data Replication Manager Data Movement
1 Enable access from the target controller to the initiator LUN being moved.
2 Create a new target LUN of the desired capacity with access to the initiator controller.
3 Create a remote copy set from the initiator and target LUNs and allow normalization to occur.
4 Delete the remote copy set from the initiator and target LUNs.
5 Prevent the host I/O from accessing the initiator LUN.
6 Create a new LUN at the initiator site.
7 Create a remote copy set between the target LUN and the new initiator LUN and allow
normalization to occur.
8 Delete the remote copy set between the initiator and target LUNs.
9 Delete the original LUN and recently created LUN at the initiator site.
- Create another new LUN at the initiator site. Give it the same name as the original LUN that
contained the data to be moved.
q Allow host I/O to the initiator LUN.
Figure 13: Non-disaster tolerant data movement to a larger capacity
3
5
6
9
7
Host A
HSG80 HSG80
Host B
Add RCS and
normalize
2
Create LUN with
access to initiator
controller
CXO7693A
I/O
I/O
I/O
I/O
I/O
Create
RCS and
normalize
1
Enable access to
target controller
10
11
BuildngA (Initiator) BuildngB (Target)
Switch Switch
Delete RCS
4
D1
Host A
HSG80
HSG80
Host B
Switch Switch
D10
D1
Host A
HSG80
HSG80
Host B
Create
another LUN
Switch Switch
Delete
LUNs
8
Delete
RCS
D10
D10
D10
I/O
I/O
D1
D10
D1
I/O
Create new
LUN
Caution: Do not
INIT device