Figure 48 Rec - Fujitsu ETERNUS DX100 S4 Design Manual

2. Basic Functions
Backup (Advanced Copy)
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 re-
maining SDP capacity is recommended. For more details on event notification, refer to
Notification" (page
For EC, the data in the copy destination cannot be referenced or updated until the copy ses-
•
sion is suspended. If the monitoring software (ServerView Agents) performs I/O access to the
data in the copy destination, an I/O access error message is output to the server log message
and other destinations. To prevent error messages from being output, consider using other
monitoring methods.
Remote Copy
Remote copy is a function that copies data between different storage systems in remote locations
by using the "REC". REC is an enhancement of the EC mirror suspend method of the local copy
function. Mirroring, snapshots, and backup between multiple storage systems can be performed by
using an REC.
An REC can be used to protect data against disaster by duplicating the database and backing up
data to a remote location.
The older models of the ETERNUS Hybrid Storage Systems and the ETERNUS Disk Storage Systems
are connectable.
●
REC
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 DX/AF storage systems
•
Backing up data to remote ETERNUS DX/AF storage systems
•

Figure 48 REC

Main site
SAN
ETERNUS DX/AF
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
82).
Management
server
Remote copy
Operating
volume
Copyright 2023 Fujitsu Limited
(REC)
WAN
Backup
volume
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"Event
Backup site
Management
server
SAN
ETERNUS DX/AF
P3AM-7642-32ENZ0