Host Response
The response from the ETERNUS DX can be optimized by switching the setup information of the host response
for each connected server.
The server requirements of the supported functions, LUN addressing, and the method for command responses
vary depending on the connection environments such as the server OS and the driver that will be used. A
function that handles differences in server requirements is supported. This function can specify the appropriate
operation mode for the connection environment and convert host responses that respond to the server in the
ETERNUS DX.
In normal server connection, the recommended patterns prepared for each OS type in advance or the default
settings are used.
The host response settings can be specified for the server or the port to which the server connects. For details on
the settings, refer to "Configuration Guide -Server Connection-".
For details on modifying the host response settings, refer to "ETERNUS Web GUI User's Guide".
Figure 72
Host Response
Server B
Server C
Server A
Host Response settings
for Server A for Server B for Server C
ETERNUS DX
Caution
•
If the host response setting is not appropriate, the volumes may not be referenceable or the expected
performance may not be achieved. Make sure to select appropriate host response settings.
•
The number of LUNs that can be referenced from the host varies depending on "LUN Addressing" and
"LUN Expand Mode (Peripheral Device Addressing)" of the host response settings.
3. SAN Functions
Stable Operation
141
Design Guide
Summary of Contents for ETERNUS DX S5 Series
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