HP StorageWorks HSG80 ACS Solution Software V8.8 for IBM AIX Installation and Configuration Guide (AA-RV1HA-TE, March 2005)

Planning a Subsystem
53HSG80 ACS Solution Software V8.8 for IBM AIX Installation and Configuration Guide
Figure 16: Limiting host access in transparent failover mode
Restricting Host Access by Disabling Access Paths
If more than one host is on a link (that is, attached to the same port), host access
can be limited by enabling the access of certain host connections and disabling the
access of others. This is done through the ENABLE_ACCESS_PATH and
DISABLE_ACCESS_PATH switches of the
ADD UNIT (or SET unit) commands. The
access path is a unit switch, meaning it must be specified for each unit. Default
access enables the unit to be accessible to all hosts.
CXO7081B
Host
port 1
active
Host
port 2
active
D100 D101 D120D0 D1
Switch or hub Switch or hub
Controller A
Controller B
Connection
AQUA1A1
Connection
BLACK1B2
Connection
BROWN1B2
Host
port 2
standby
Host
port 1
standby
Host 1
"AQUA"
FCA1
Host 2
"BLACK"
FCA1 FCA1
Host 3
"BROWN"
NOTE: FCA = Fibre Channel Adapter