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Chapter 8 Advanced Copy Management
8.1 Advanced Copy Status
•
Recommended Multiplicity
The recommended multiplicity with the remote device that has a path to the local device is
displayed.
-
-
•
Connection Type
The type of connection to the remote device that has a path to the local device is displayed.
-
-
8.1.4.3
REC Buffer
This function displays the REC buffer status when performing REC in "REC asynchronous con-
sistency mode".
The "Consistency mode" secures the order of data transfer to the remote device for all of the
specified REC sessions. This mode requires constant securement of the dedicated REC Buffer
in the cache memory. Copying via REC Buffer stores multiple REC session I/Os in the REC
Buffer for a certain period of time, and copies in blocks.
The following items are displayed in the Main area:
•
Group
The management group number of the REC Buffer is displayed.
-
-
When the connection type is "Direct": "-"
One of the following items is displayed when the connection type is "Remote":
•
When the round trip time is measured: the value calculated from the measurement
result
•
When the round trip time is not measured: ***
Direct
Remote
Check if the REC Buffer capacity of the copy source and that of the copy
destination are the same size.
If the capacity is not the same, use the procedure in
Buffer" (page 248)
copy source and copy destination.
ETERNUS DX90 S2: 0 - 3
ETERNUS DX410 S2/DX440 S2: 0 - 7
ETERNUS Web GUI User's Guide
Copyright 2011 FUJITSU LIMITED
to set the same size for the REC Buffer capacity of the
187
"8.2.15 Modify REC
P2X0-1090-02ENZ0
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