When performing a Cascade Copy for an REC session in Consistency mode, the copy source of the session must
not be related to another REC session in Consistency mode with the same destination storage system.
Figure 58 Multi-Copy (Case 1: When Performing a Cascade Copy for an REC Session in Consistency Mode)
Copy
destination 1
Copy
destination 2
Copy
destination 3
ETERNUS DX/AF
Copy source
ETERNUS DX/AF
ETERNUS DX/AF
OPC / QuickOPC / EC
REC (Consistency)
REC (Consistency)
REC (Consistency)
Figure 59 Multi-Copy (Case 2: When Performing a Cascade Copy for an REC Session in Consistency Mode)
Copy
destination 1
Copy
destination 2
Copy
destination 3
ETERNUS DX/AF
Copy source
ETERNUS DX/AF
ETERNUS DX/AF
OPC / QuickOPC / EC
REC (Consistency)
REC (Consistency)
REC (Consistency)
●
Cascade Copy
A copy destination with a copy session that is set can be used as the copy source of another copy session.
A Cascade Copy is performed by combining two copy sessions.
In
, "Copy session 1" refers to a copy session in which the copy destination area is also used as the copy
source area of another copy session and "Copy session 2" refers to a copy session in which the copy source area is
also used as the copy destination area of another copy session.
For a Cascade Copy, the copy destination area for copy session 1 and the copy source area for copy session 2
must be identical or the entire copy source area for copy session 2 must be included in the copy destination area
for copy session 1.
2. Basic Functions
Backup (Advanced Copy)
99
FUJITSU Storage ETERNUS DX500 S4/DX600 S4, ETERNUS DX500 S3/DX600 S3 Hybrid Storage Systems Design Guide (Basic)
Copyright 2019 FUJITSU LIMITED
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Содержание ETERNUS DX500 S3/DX600 S3
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