Figure 52 Targets For The Multi-Copy Function; Figure 53 Multi-Copy - Fujitsu ETERNUS AF S3 Series Design Manual

2. Basic Functions
Backup (Advanced Copy)
●
Multi-Copy
Multiple copy destinations can be set for a single copy source area to obtain multiple backups.
Even if the beginning and end of the copy source areas for the copy sessions do not match, multi-copy can
be performed for the overlapping copy source area.
In the multi-copy shown in
the multi-copy function.
When copy sessions 1 and 2 are EC/REC, updates to area A in the copy source (update 1) are copied to both
copy destination 1 and copy destination 2.
Updates to areas other than A in the copy source (update 2) are copied only to copy destination 2.
Figure 52
Copy source
Update 1
Update 2
Up to eight OPC, QuickOPC, SnapOPC, EC, or REC sessions can be set for a multi-copy.
Figure 53
Copy
destination 1
Copy
destination 3
Copy
destination 4
Figure 52, the entire range that is copied for copy session 1 will be the target for
Targets for the Multi-Copy Function
Copy destination 1
Copy session 1
Copy destination 2
A
Copy session 2
Multi-Copy
ETERNUS AF/DX
Copy
destination 2
Copy source
Copy
destination 5
ETERNUS AF/DX
Copy
destination 6
Copy
destination 7
ETERNUS AF/DX
Copy
destination 8
99 Design Guide