Technical data

4 Verifies that all connections have the offsets set to 0 and the
operating system is set to TRU64_UNIX.
____________________ Note _____________________
If the fiber-optic cables are not properly installed, there will
be inconsistencies in the connections shown.
14. Set up the storage sets as required for the applications to be used. An
example is provided in Section 6.9.1.1.
6.8.4.1 Setting Up the HSG80 Array Controller for Arbitrated Loop
Section 6.8.4 describes settings that are common to both fabric and
arbitrated loop configurations. This section describes settings that are
unique to setting up the HSG80 controller for the arbitrated loop topology.
For more information on installing the HSG80 in an arbitrated loop topology,
see the Compaq StorageWorks HSG80 Array Controller ACS Version 8.5
Configuration Guide.
To set up an HSG80 for TruCluster arbitrated loop operation, follow steps 1
through 10 in Section 6.8.4. Then, in step 11, use the maintenance terminal
to set the controller values as follows:
1. Set the PORT_x_TOPOLOGY value to LOOP_HARD. For example:
HSG80> set nofailover
HSG80> clear cli
HSG80> set multibus copy = this
HSG80> clear cli
HSG80> set this port_1_topology = offline
HSG80> set this port_2_topology = offline
HSG80> set other port_1_topology = offline
HSG80> set other port_2_topology = offline
HSG80> set this port_1_topology = LOOP_HARD
HSG80> set this port_2_topology = LOOP_HARD
HSG80> set other port_1_topology = LOOP_HARD
HSG80> set other port_2_topology = LOOP_HARD
The PORT_x_TOPOLOGY value of LOOP_HARD enables arbitrated loop
operation. Although the HSG80 controller also permits a topology
setting of LOOP_SOFT, this is not supported in Tru64 UNIX.
2. Set PORT_x_AL_PA to unique values. PORT_x _AL_PA specifies the
hexadecimal arbitrated loop physical address (AL_PA) for the HSG80
host ports.
6–48 Using Fibre Channel Storage