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Chapter 9 Connectivity Management
9.2 Functions in the Action Area for Connectivity
ETERNUS Web GUI User’s Guide
Copyright 2013 FUJITSU LIMITED P2X0-1090-10ENZ0
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3 Click the [Done] button to return to the [Connectivity] screen.
End of procedure
9.2.1.3 Modify Host Affinity
This function is used to perform the following modifications to the existing host affinity.
• Changing the "CA Port Group" or "CA Port" settings
• Changing the "LUN Group" setting
• Changing the "CA Ports in a CA Port Group" setting (Change the path between the host and the CA port)
• Changing the "Host Response" setting (only when "Host Group" or "Host" is "All")
Not only the path between the existing host and the CA port, but also the path between a host and a CA port,
which has been added after creating a host affinity, can be modified.
• The maximum number of connectable hosts (the number of HBAs) per CA port is 256.
• When modifying an active host affinity, make sure to stop the access of the host which has been
associated with the host affinity to be modified.
• When one port is registered in several CA port groups, and the affinity setting has been configured on one
of the CA port groups including the corresponding port, the affinity setting is configured on all the CA port
groups, which include the corresponding port, and also on the member ports.
• CA port groups without a host affinity setting can be used for creating a host affinity regardless of
whether the affinity mode is enabled (ON) or disabled (OFF).
• CA ports without a host affinity setting can be used for creating a host affinity regardless of whether the
affinity mode is enabled (ON) or disabled (OFF).
• A host can be a member of several host groups. In addition, a CA port can be a member of several CA port
groups. However, only one LUN group can be allocated to host and port combinations when changing
host affinity settings.
• When the procedure in "9.2.2.5 Modify Host Group" (page 463) is used to add a host to a host group, the
paths between the added host and all of the ports that are in the associated CA port group are
configured.
• When the procedure in "9.2.3.6 Modify CA Port Group" (page 528)
is used to add a port to a CA port group,
the paths between all of the hosts in the host group and the added port are configured.
• Host groups with the host interface "FCoE" can configure host affinity with CA port groups with CA types
"FC" or "FCoE".