Fujitsu DX440 S2 Computer Drive User Manual


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Chapter 9 Connectivity Management
9.2 Functions in the Action Area for Connectivity
ETERNUS Web GUI User’s Guide
Copyright 2013 FUJITSU LIMITED P2X0-1090-10ENZ0
535
This item is displayed only when "Port Mode" is "CA/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 Disk storage system.
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 controller
firmware version of the copy destination storage system is V10L49 or earlier or when the copy
destination storage system is an old storage system (ETERNUS DX90, ETERNUS DX410/DX440,
ETERNUS DX8100/DX8400/DX8700, ETERNUS4000, or ETERNUS8000).
If the port mode has changed from "CA/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", the
current REC transfer mode setting is retained. Refer to "9.2.3.11 Modify Port Mode" (page 571)
for details.