Chapter 7 Advanced Copy Management
7.8 REC Management
ETERNUS Web GUI User’s Guide (Settings)
Copyright 2015 FUJITSU LIMITED
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Registering the Advanced Copy function license or the Storage Cluster function license is required to use
this function.
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Creating copy paths in the ETERNUS DX100 S3 is only available when the local storage system (the
storage system where copy paths are created) is purchased outside Japan.
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To create copy path information between different models of storage systems (such as ETERNUS DX600 S3
and ETERNUS DX440 S2), be sure to create the information on the newer model of ETERNUS Disk storage
system (ETERNUS DX600 S3 in the above example). The copy path creating function on an older model
may not have a function to add the storage system information for newer models or the created path
information file cannot be applied to newer models.
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When creating a copy path between the ETERNUS DX S3 series (*1) with a controller firmware version
V10L40 or later and the ETERNUS DX S3 series with the controller firmware versions earlier than V10L40,
make sure to create the copy paths using the ETERNUS DX S3 series that has a controller firmware version
V10L40 or later.
*1:
The target storage systems are the ETERNUS DX100 S3/DX200 S3, the ETERNUS DX500 S3/DX600 S3, the ETERNUS
DX8700 S3/DX8900 S3, and the ETERNUS DX200F.
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For a single iSCSI port, one of the following IP versions can be used; IPv4, IPv6 (Link Local), or IPv6
(Connect IP). A copy path can be created between iSCSI ports that are the same IP version.
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If the created path information and the path information in the ETERNUS Disk storage system do not
match and some of the copy paths to the ETERNUS Disk storage system are not selected to be applied, the
actual path information after the application does not correspond to the backed up path information file.
Refer to
"Specification for applying result" (page 954)
for details. Note that the backed up path
information file corresponds to the downloaded path information file in the setting PC.
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Copy paths cannot be created when the same ETERNUS Disk storage system is set for the local storage
system and remote storage system.
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If the Box ID is changed after setting the copy path, REC will no longer run. After creating copy paths by
using the new Box ID, apply the created copy path information to all of the storage systems with copy
paths between the storage system for which the Box ID was changed.
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Different types of interfaces (FC, iSCSI 1Gbit/s, or iSCSI 10Gbit/s) cannot exist together on the same copy
path (the path between the local storage system and the remote storage system).
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Modifying copy path information in use may stop or otherwise affect operations. Confirm that REC is not
in use before modifying the information. To check whether REC is in use, refer to the copy session list of
Remote Copy.
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Copy path information files cannot be applied to the storage system when the port mode of the specified
port for the copy path information does not match the port mode of the installed adapter to which the
copy path information file is applied. Modify the copy path information or switch the port mode on the
storage system in advance using the procedure in
"4.3.11 Modify Port Mode" (page 459)
.
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Copy path information files cannot be applied to the storage system when the port type (FC or iSCSI) that
is specified in the copy path information does not match the port type of the adapter that is installed in
the storage system. Applying copy path information is not available under the following conditions:
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When the port type is FC and the WWN in the copy path information does not match the WWN of the
adapter in the target ETERNUS Disk storage system
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When the port type is iSCSI and the IP address and the iSCSI Name in the copy path information do not
match the IP address and the iSCSI Name of the adapter in the target ETERNUS Disk storage system
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Round trip time must be measured from a static state without sending data through the line.
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Before measuring the round trip time, set a physical line properly between the ETERNUS Disk storage
systems. When a line has an error, the round trip time cannot be measured correctly.
Summary of Contents for Eternus DX200F
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