Backup (San); Table 30 List Of Functions (Copy Methods) - Fujitsu ETERNUS DX100 S4 Design Manual

2. Basic Functions
Backup (Advanced Copy)
The following functions (copy methods) are available.

Table 30 List of Functions (Copy Methods)

Model
ETERNUS DX100 S4/
DX100 S3
ETERNUS DX200 S4/
DX200 S3
*1 : The values if the controller firmware version is earlier than V10L60 or if the "Expand Volume
Mode" is disabled.
*2: The values if the controller firmware version is V10L60 or later and if the "Expand Volume
Mode" is enabled.
A copy is executed for each LUN. With ETERNUS SF AdvancedCopy Manager, a copy can also be
executed for each logical disk (which is called a partition or a volume depending on the OS).
A copy cannot be executed if another function is running in the storage system or the target vol-
ume. For details on the functions that can be executed simultaneously, refer to
Functions That Are Available for Simultaneous Executions" (page

Backup (SAN)

Local Copy
The Advanced Copy functions offer the following copy methods: "Mirror Suspend", "Background
Copy", and "Copy-on-Write". The function names that are given to each method are as follows:
"EC" for the "Mirror Suspend" method, "OPC" for the "Background Copy" method, and "SnapOPC"
for the "Copy-on-Write" method.
When a physical copy is performed for the same area after the initial copy, OPC offers "QuickOPC",
which only performs a physical copy of the data that has been updated from the previous version.
The SnapOPC+ function only copies data that is to be updated and performs generation manage-
ment of the copy source volume.
●
OPC
All of the data in a volume at a specific point in time is copied to another volume in the ETERNUS
DX.
OPC is suitable for the following usages:
Performing a backup
•
• Performing system test data replication
• Restoring backup data (restoration after replacing a drive when the copy source drive has failed)
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
Control software
Number of available
ETERNUS Web GUI /
sessions
ETERNUS CLI
1,024 (*1) SnapOPC+
2,048 (*2)
2,048 (*1) SnapOPC+
4,096 (*2)
89
Copyright 2023 Fujitsu Limited
ETERNUS SF Advan-
ETERNUS SF Express
cedCopy Manager
SnapOPC SnapOPC+
SnapOPC+
QuickOPC
OPC
EC
REC
SnapOPC SnapOPC+
SnapOPC+
QuickOPC
OPC
EC
REC
"Combinations of
203).
P3AM-7642-32ENZ0