Fujitsu ETERNUS DX60 S3 User Manual page 846

Appendix A Parameter List
A.4 Connectivity Management
• REC Transfer Mode
Description
Input condition/
Display contents
•
This item is displayed only when the port mode is "CA/RA" or "RA".
•
The REC transfer mode can be changed without suspending a copy session even when an REC is being
performed in the target port. The changed settings are applied immediately to the ETERNUS DX.
•
If specific REC transfer modes for all the RA ports and the CA/RA ports are disabled, a copy session with a
disabled REC transfer mode fails because the REC paths for all the RA ports and the CA/RA ports are regarded as
being blocked. When the REC transfer mode for a copy session that is being performed is disabled, this copy
session is halted.
•
When "Async Consistency" is disabled for all the RA ports and the CA/RA ports, the REC buffer status changes to
"INACTIVE".
•
For normal operations, set the same REC transfer mode for the copy source and the copy destination storage
systems to recover data. When the REC transfer mode is specified for a copy source storage system, the specified
REC transfer mode is performed even if the copy destination storage system is an old storage system (ETERNUS
DX90 S2, ETERNUS DX410 S2/DX440 S2, ETERNUS DX8100 S2/DX8700 S2, ETERNUS DX90, ETERNUS DX410/
DX440, ETERNUS DX8100/DX8400/DX8700, ETERNUS4000, or ETERNUS8000).
•
If the port mode has changed from "CA/RA" or "RA" to "CA" or "Initiator", the REC transfer mode returns to the
default setting ("Enable"). When the port mode has changed from "CA/RA" to "RA" or changed from "RA" to "CA/
RA", the current REC line number setting is retained. Refer to
Select which REC transfer mode is enabled or disabled for the target port.
•
Sync (synchronous transfer mode)
•
Async Stack (asynchronous stack mode)
•
Async Consistency (asynchronous consistency mode)
•
Async Through (asynchronous through mode)
When "Enable" is selected, an REC is performed in the selected transfer mode for the
target port.
When "Disable" is selected, an REC is not performed in the selected transfer mode for the
target port.
To set the REC transfer mode for the specific port, select "Enable" for the appropriate
mode.
For example, specify different ports for Consistency and Stack to perform data transfers
without any interference. The current setting is retained even when an REC path is
changed. When "Enable" is selected for all of the REC transfer modes, a conventional REC
is performed.
This item is displayed only when the Advanced Copy license has been registered.
•
Enable
•
Disable
846
ETERNUS Web GUI User's Guide (Settings)
Copyright 2015 FUJITSU LIMITED
"4.3.11 Modify Port Mode" (page 459) for details.
P2X0-1270-13ENZ0