Chapter 5 Configuration Menu
> 5.4 Host Interface Management
ETERNUS DX400/DX8000 series ETERNUSmgr User Guide Settings/Maintenance
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The following explains the setting procedures of Affinity Group.
The following settings are available.
•Add Affinity Group
•Change Affinity Group
•Delete Affinity Group
These procedures are explained in the following sections.
•Mapping to a work volume during RAID Migration is not allowed.
The operating status of migration (the work volume information) can be
checked by the [Progress of RAID Migration] function. "Work Volume" is
a temporary volume created for Migration operation.
•If no Open Volume, Snap Data Volume, Thin Provisioning Volume, or
MVV Volume is defined, this function cannot be used.
•On the ETERNUS DX400/DX8000 series, 1024 LUNs can be mapped
by concatenating two Affinity Groups. Hosts can access 1024 LUNs only
when the host specific mode of the Host Response is "HP-UX Mode
(SCC)". Please note the above when linking the host and Affinity Group
using [Allocate Host-Affinity Group].
•Snap Data Pool Volume cannot be mapped.
•When Resource Domains are registered in the ETERNUS DX400/
DX8000 series, Resource Domains to which the Affinity Group can be
allocated differ depending on the current user account.
-When logged on using a Total Administrator account, Affinity Groups
can be assigned to all the Resource Domains.
-When logged on using a Resource Domain Administrator account,
Affinity Groups can be assigned only to the relevant Resource
Domain.
•When a host and the ETERNUS DX400/DX8000 series are connected
via FC-CA or iSCSI-CA, there are two ways for a host to recognize
Logical Volumes in the ETERNUS DX400/DX8000 series. One is [Set
LUN Mapping], and the other is the Host-Affinity function, which relies
on [Set Host World Wide Name(s)]/[Set iSCSI Host], [Set Affinity Group]
and [Allocate Host-Affinity Group]. [Affinity M od e] in [ Se t CA
Parameters] for each FC-CA Port or iSCSI-CA Port determines which
function to use. If [Affinity Mode] is [ON (Enabled)], the Host-Affinity
function is enabled, whereas [Set LUN Mapping] is enabled if [Affinity
Mode] is [OFF (Disabled)].
•The Host-Affinity function is a device security function for open system
servers which is supported by Fibre Channel CAs (FC-CA) and iSCSI-
CAs. To use the Host-Affinity function, not only [Set Affinity Group] but
also [Set Host World Wide Name(s)]/[Set Host iSCSI] and [Allocate
Host-Affinity Group] are required.