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Chapter 9 Connectivity Management
9.2 Functions in the Action Area for Connectivity
•
Byte-0 of Inquiry Response
Set the value for Byte 0 value of the Inquiry command from "No Conversion (Default)"
or "Custom".
For a certain period of time after the link between the ETERNUS DX Disk storage
system and the host has been established, the host sends an "Inquiry" command to
check the volume status in the device. Specify the Byte-0 of the Inquiry data to respond
this "Inquiry" command.
Byte 0 in the Inquiry data indicates the volume status.
-
No Conversion (Default)
Responds with the value specified in the ETERNUS DX Disk storage system.
-
Custom
When the Byte-0 is "0x20 (configuration is available, unformatted)", converts the
Byte-0 value to "0x7f (configuration is not available)" and responds.
•
Inquiry VPD ID Type
Set the Vital Product Data (VPD) information type to respond to the host.
VPD information includes the device information (Vender ID, Product ID for each
model, volume number, etc.) for the volume.
Type1 and Type3 indicate the data format.
-
Type1 + Type3 (Default)
-
Type1
-
Type3
•
Inquiry Standard Data Version
Specify the Standard Data Version (version number of the SCSI standard) of the
"Inquiry" command.
-
Version 5 (Default)
-
Version 4
-
Version 3
•
Command Timeout Interval
Select the setting method for the command timeout interval from the following items.
-
Default (25sec.)
-
Customize
When "Customize" is selected, input a value between 10 and 255 seconds
(numeric).
•
Load Balance Response
This field sets the response status when an overload-derived timeout is detected. The
server retry reaction is determined by this setting.
While the default response should normally be compatible with all systems, the setting
may need to be changed if problems occur.
-
When "Enable" has been selected for "Load Balance" setting in the [Setup
Subsystem Parameters] function:
•
Unit Attention (Default)
•
Busy
•
Queue Full
-
When "Disable" has been selected for "Load Balance" setting in the [Setup
Subsystem Parameters] function:
•
[Disabled] Unit Attention (Default)
•
[Disable] Busy
•
[Disable] Queue Full
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