Rec Buffer - Fujitsu ETERNUS DX60 S3 User Manual

Chapter 8 Advanced Copy Status
8.7 Settings (Advanced Copy)
• Link Speed
When the local storage system and the remote storage system are connected by remote connection, the
link speed is displayed between 1 Mbit/s - 65535 Mbit/s. If the "Connection Type" is "Direct", a "-" (hyphen)
is displayed.
*1: Refer to "Modify EC/OPC Priority" in "ETERNUS Web GUI User's Guide (Settings)" for details.
*2: Refer to "Measure Round Trip Time" in "ETERNUS Web GUI User's Guide (Settings)" for details.
*3: Refer to "Modify REC Multiplicity" in "ETERNUS Web GUI User's Guide (Settings)" for details.
8.7.3

REC Buffer

This function displays the REC Buffer status when performing REC in "REC asynchronous consistency mode".
The "Consistency mode" secures the order of data transfer to the remote storage system 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 ETERNUS DX60 S3 does not support this function.
This function is displayed only when the Advanced Copy function license has been registered, and when
using an ETERNUS DX/AF model that supports REC.
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ETERNUS Web GUI User's Guide (Operation)
Copyright 2016 FUJITSU LIMITED P2X0-1260-19ENZ0