Chapter 8 Advanced Copy Management
8.2 Functions in the Action Area for Advanced Copy
ETERNUS Web GUI User’s Guide
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- REC multiplicity setting
Set the multiplicity used for performing REC. This setting is required when the connection
type in the [Set Copy Path] is "Remote".
Refer to "8.2.14 Modify REC Multiplicity" (page 246)
.
● Copy session management
After preparation for Advanced Copy is complete, create a copy session to start copying
volumes. Check the copy session status during the copy operation.
- Copy session creation
Note that GUI can only create the SnapOPC+ sessions that are performed in volume units.
To create other copy sessions, use the copy management software. Refer to "8.2.1 Start
SnapOPC+" (page 199).
- Copy session check
Check the status of each copy session using the [Advanced Copy Status] screen.
Refer to "8.1.1 Advanced Copy (Basic Information)" (page 172)
.
For REC sessions, checking copy path and buffer status are also available.
Refer to "8.1.4.2 Copy Path" (page 185)
and "8.1.4.3 REC Buffer" (page 187) for details.
8.2.1 Start SnapOPC+
This function is used to select the copy source volume and copy destination volume, and start a
new SnapOPC+ copy session.
The procedure to start the SnapOPC+ session is as follows:
1 Click [Start SnapOPC+] in [Action].
• Only SnapOPC+ copy sessions that are performed in units of volumes
can be created using GUI.
To create EC sessions, OPC sessions, QuickOPC sessions, SnapOPC
sessions, SnapOPC+ sessions using range selection, and REC
sessions, use copy management software.
• When using SnapOPC+, SDVs are required as copy destination vol-
umes. The "Capacity of source volume" that is specified when creating
SDVs indicates the copy source Standard volume capacity.
When creating an SDV using the [Create Volume] function, the capacity
setting is not required. 24 (MB) + 0.1% of the copy source volume
capacity is automatically secured in the ETERNUS DX Disk storage
system. "24MB" is the smallest volume capacity. 0.1% of the copy
source volume is the capacity that is used for the controlling information
area in the SDV. When using SnapOPC or SnapOPC+, make sure to
create an SDV and SDPVs. An SDPV is a volume that configures an
SDP. The SDP allocates free space when SDV capacity is insufficient.
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