Fujitsu ETERNUS AF250, User Manual

Page: 389 / 423

Chapter 8 Advanced Copy Status
8.7 Settings (Advanced Copy)
ETERNUS Web GUI User’s Guide (Operation)
Copyright 2016 FUJITSU LIMITED P2X0-1260-19ENZ0
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• Size
The REC Buffer size is displayed. When the REC Buffer usage is "Unused", a "-" (hyphen) is displayed.
- ETERNUS DX100 S3
128MB
- ETERNUS DX200 S3
128MB, 256MB, 512MB
- ETERNUS DX500 S3/DX600 S3
128MB, 256MB, 512MB, 1024MB, 2048MB
- ETERNUS DX8100 S3/DX8700 S3/DX8900 S3
128MB, 256MB, 512MB, 1024MB, 2048MB
- ETERNUS AF250
128MB, 256MB, 512MB
- ETERNUS AF650
128MB, 256MB, 512MB, 1024MB, 2048MB
- ETERNUS DX200F
128MB, 256MB, 512MB
• Forwarding Interval
The data transfer interval is displayed. When the REC Buffer usage is "Unused", a "-" (hyphen) is displayed.
• Monitoring Time
The monitoring time, before transition to the "Halt" state for a copy session when an REC Buffer shortage
occurs, is displayed. When the monitoring time" is "0 min.", the ETERNUS DX/AF is not being monitored.
When the REC Buffer usage is "Unused", a "-" (hyphen) is displayed.
• HALT Wait Timer
The maximum non-responding time is displayed. During the non-response time, the host I/O response is
stopped to give priority to performing REC Buffer transfers in a high-load state. When the REC Buffer usage
is "Unused", a "-" (hyphen) is displayed.
• I/O Priority Mode
Whether the "I/O Priority Mode" is enabled or disabled is displayed. A "-" (hyphen) is displayed when the
usage is "Unused".
"I/O Priority Mode" reduces the effect on host I/O when an initial copy for starting, restarting, or recovering
the copy function is performed.
This item is available when logged in using a user account with the "Advanced Copy Management" policy.
• Immediate HALT Mode
Whether the "Immediate HALT Mode" is enabled or disabled is displayed. A "-" (hyphen) is displayed when
the usage is "Unused".
"Immediate HALT Mode" reduces the effect on host I/O because the REC Buffer is insufficient when "HALT
Wait Timer" is set to "0 sec.".
This item is available when logged in using a user account with the "Advanced Copy Management" policy.
• High Bandwidth Mode
Whether the "High Bandwidth Mode" is enabled or disabled is displayed. A "-" (hyphen) is displayed when
the usage is "Unused".
"High Bandwidth Mode" reduces the number of communications by transferring control data required for
buffer transfers with as little time as possible to improve the transfer speed for long distance
communication.
This item is available when a user with the "Advanced Copy Management" policy is logged on an ETERNUS
DX/AF with a controller firmware version V10L4x or later.