Chapter 6 Optional Functions
6.2 Backup (Advanced Copy)
ETERNUS DX80 S2/DX90 S2 Disk storage system Overview
Copyright 2013 FUJITSU LIMITED P3AM-4812-11ENZ0
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6.2.2 Remote Copy
Remote copy is a function that copies data between different storage systems in remote locations, using the
"Remote Equivalent Copy: REC". REC is an enhancement of the EC mirror suspend method that performs EC
remotely. Mirroring, snapshots, and backup between multiple storage systems can be performed using this
function.
This function protects data against disaster by duplicating the database and backing up data to a remote
location.
The older ETERNUS Disk storage system models can be connected.
● REC (Remote Equivalent Copy)
REC is used to copy data among multiple devices using the EC copy method. REC is suitable for the
following usages:
- Performing system test data replication
- Duplicating databases on multiple ETERNUS Disk storage systems
- Backing up data to remote ETERNUS Disk storage systems
Figure 6.4 REC
• Prepare an encrypted SDP when an encrypted SDV is used.
• If the SDP capacity is insufficient, a copy cannot be performed. In order to avoid this situation, an
operation that notifies the operation administrator of event information according to the remaining SDP
capacity is recommended. For more details on event notification, refer to "5.5.2
Event Notification" (page
70).
Destination site
Backup
volume
SAN
Management
server
Running
volume
SAN
Management
server
Primary site
WAN
ETERNUS DX Disk
storage system
ETERNUS DX Disk
storage system
Remote copy
(REC)
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