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Chapter 5 Configuration Menu
> 5.4 Host Interface Management
ETERNUS DX400/DX8000 series ETERNUSmgr User Guide Settings/Maintenance
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5.4.2 Set Host World Wide Name(s)
Host World Wide Name(s) (hereafter WWNs) should be set only when the host and the
ETERNUS DX400/DX8000 series are connected via FC-CA.
If the WWNs of the host-side Fibre Channel cards are registered, the Host-Affinity function can
use them to restrict which hosts are allowed to access which
ETERNUS DX400/DX8000 series
Logical Volumes.
This function adds/deletes WWNs without needing to stop ETERNUS DX400/DX8000 series.
When it is necessary to use non-default Host Response(s) from the ETERNUS DX400/DX8000
series
to the host, a Host Response must be assigned to each WWN or each FC-CA Port. A tar-
get to which a Host Response is assigned varies depending on [ON/OFF] of the Host-Affinity
function.
• When the Host-Affinity function is [ON (Enabled)]
Set Host Response for each WWN using the [Set Host World Wide Name(s)] function.
• When the Host-Affinity function is [OFF (Disabled)]
Set Host Response for each FC-CA Port using the [Set CA Parameters] function.
The maximum number of WWNs, Affinity Groups, and Host-Affinity Settings which can be
registered vary depending on each model. The following shows the number which can be set for
each model.
■ Number of WWNs/Affinity Groups/Host-Affinity Settings which can be registered
Model Number of WWNs Number of
Affinity Groups
(in the system)
Number of
Host-Affinity Settings
(per port)
ETERNUS DX410 256 256 64
ETERNUS DX440 256 256 64
ETERNUS DX8100 256 256 64
ETERNUS DX8400 1024 512 64
ETERNUS DX8700 1024 512 64
• When deleting a WWN during operation, stop access from the host
corresponding to the WWN. To add a new WWN, it is not necessary to
stop the host access.
• Host-Affinity Function can be used if the [Affinity M o d e ] o f t h e t a r g e t F C -
CA Port is [ON (Enabled)].
• When deleting a Host Response using the [Set Host Response]
function, the Host Response of each WWN related to it changes to the
[Host Response No.: Default].
• When Resource Domains are registered in the ETERNUS DX400/
DX8000 series, the Resource Domains to which WWNs can be
assigned differ depending on the current user account.
- When logged on using a Total Administrator account, WWNs can be
assigned to all Resource Domains.
- When logged on using a Resource Domain Administrator account,
WWNs can be assigned only to the relevant Resource Domain.