Fujitsu ETERNUS DX100 S3 - Figure 58 Cascade Copy (Using Three Copy Sessions); Figure 59 Cascade Copy (Using Four Copy Sessions)

A Cascade Copy that uses the three copy sessions can be performed with the following configura-
tion.
Figure 58 Cascade Copy (Using Three Copy Sessions)
Copy source Copy destination
and source
Copy destination
and source
OPC/QuickOPC/EC
REC
(Stack mode)
OPC/QuickOPC/
SnapOPC/
SnapOPC+/EC
Copy destination
: Copy session 1
: Copy session 2
: Copy session 3
A Cascade Copy that uses the four copy sessions can be performed with the following configura-
tion.
However, two EC sessions in the copy destination ETERNUS device cannot be "Active" at the same
time.
Figure 59 Cascade Copy (Using Four Copy Sessions)
REC
(Stack mode)
: Copy session 1
: C
opy session 2
: Copy session 3
: Copy session 4
EC EC EC
REC
(
Stack mode)
QuickOPC EC EC
A B C D E
A B C D E
ETERNUS DX/AF ETERNUS DX/AF
ETERNUS DX/AF ETERNUS DX/AF
2. Basic Functions
Backup (Advanced Copy)
102
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems
Design Guide (Basic)
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