Figure 58 Cascade Copy (Using Three Copy Sessions); Figure 59 Cascade Copy (Using Four Copy Sessions) - Fujitsu ETERNUS DX100 S4 Design Manual

2. Basic Functions
Backup (Advanced Copy)
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)

OPC/QuickOPC/EC
Copy source
: 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)

ETERNUS DX/AF
A
EC
ETERNUS DX/AF
A
QuickOPC
: Copy session 1
: Copy session 2
: Copy session 3
: Copy session 4
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
REC
(Stack mode)
Copy destination Copy destination
and source and source
B
REC
(Stack mode)
B
REC
(Stack mode)
Copyright 2023 Fujitsu Limited
OPC/QuickOPC/
SnapOPC/
SnapOPC+/EC
Copy destination
ETERNUS DX/AF
C
EC
ETERNUS DX/AF
C
EC
102
D E
EC
D E
EC
P3AM-7642-32ENZ0