Hitachi ShadowImage for z/OS user guide (HIT9503-96004, June 2006)

88 ShadowImage for the XP1024/XP128/XP12000/XP10000
The following figure shows an example of combining ShadowImage - FlashCopy and SI390 pairs in the L1
and L2 pairs.
Figure 42 Possible combination of ShadowImage - FlashCopy and Slz and SI390 pairs
The following table shows the relationship between the L1 pair status and the availability of SI390 or
ShadowImage - FlashCopy pair operations on the associated L2 pairs. Table 36 shows the relationship
between the L2 pair status and the availability of pair operations on the associated L1 pairs.
Table 35 Relationship between L1 pair status and L2 pair operations
L1 Pair Status L2 Pair Operations
Add
Pair
Split
Pair
Resync
Pair
Reverse Resync/
Quick Restore
Susp. Delete Establish
Relationship
Pending The combination has no relationship with the ShadowImage
- FlashCopy pair. You cannot perform the operation.
OK NO
Duplex OK NO
SP-Pend OK NO
V-Split OK NO
Split OK OK
Resync OK NO
Resysnc-R OK NO
Suspend OK NO
Table 36 Relationship between L2 pair status and L1 pair operations
L2 Pair Status L1 Pair Operations
Add
Pair
Split
Pair
Resync
Pair
Reverse Resync/
Quick Restore
Susp. Delete Establish
Relationship
F-Copy NO NO NO NO OK OK NO