Fujitsu ETERNUS DX8700 S3 - A.7.6 Measure Round Trip Time

Appendix A Parameter List
A.7 Advanced Copy Management
ETERNUS Web GUI User’s Guide (Settings)
Copyright 2015 FUJITSU LIMITED P2X0-1270-13ENZ0
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A.7.6 Measure Round Trip Time
For details about this function, refer to "7.8.5 Measure Round Trip Time" (page 639).
● Measure Round Trip Time
• Round Trip Time
A.7.7 Modify REC Buffer
For details about this function, refer to "7.8.6 Modify REC Buffer" (page 641).
For the factory default settings for this function, refer to "Appendix B Modify REC Buffer" (page 1011)
.
● REC Buffer Setting List
• Usage
• Remote Box ID
Description The round trip time (msec) measurement result between the source device and the
remote storage system is displayed.
If a measurement error has occurred, the field is blank. The value can be changed. The
following describes the recommended round trip time.
• Asynchronous copy
within 100 msec.
• Synchronous copy
within 50 msec.
Input condition/
Display contents
Numeric characters between 1 - 65535 (decimal)
Description Specify the usage of the REC Buffer.
When setting the REC Buffer for sending, select "Send". When setting the REC Buffer for
receiving, select "Receive". To delete the REC Buffer, select "Unused".
Input condition/
Display contents
• Send
• Receive
• Unused
Description Select the Box ID for the remote storage system.
If the copy path information is deleted after the REC Buffer creation, "???" is displayed.
Note that REC Buffers with "???" cannot be used. Delete any REC Buffers with this status.
If "Unused" is selected for the usage, "-" (hyphen) is displayed.
Input condition/
Display contents
• Remote storage System Box ID
• "-" (hyphen)