18
Figure 4. Created
The sessions can be viewed, in this case from the source VMAX. No user data has copied between the source and target devices, but
SCSI reservations put in place by PowerPath, the host LVM, or cluster software are copied to the target.
The session is initially in a Created state:
C:\>symdm -sid 3184 -sg lcseb246_sg list
Symmetrix ID : 000195703184
Storage Group: lcseb246_sg
Total
Source Target Capacity Done
Array Array State (GB) (%)
------------ ------------ -------------- --------- ----
000195703184 000197800129 Created 200.0 N/A
Note: During an NDM migration, the source of the migration will be an R2 or an R21 device (if there is existing SRDF DR
replication from the source device) and the target will be an R1 device. This is different than basic SRDF operations and
is required to allow DR protection during a migration using a cascaded SRDF configuration. See the section entitled
“ADDING DISASTER RECOVERY TO THE TARGET ARRAY” for more details.
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