Specifications

5–9
Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide
Before cabling, note the following:
■ Ports
❏ The active ports are port 1 and port 2, controller A.
❏ Standby ports do not exist in single-controller configurations when a failover
mode has not been selected.
❏ Once logical units are added, the active ports will have access to the units.
❏ For a more detailed explanation of active versus standby ports and how units
are assigned on each port, see “Assigning Unit Numbers in Transparent Failover
Mode,” page 3–10 and “Assigning Unit Numbers in Multiple-Bus Failover
Mode,” page 3–11.
■ Cables connecting into the switch
❏ The order of how you connect cables into the switch does not matter, which
differs from multiple-bus failover connections. However, to limit confusion, start
with switch port 0 and increment the cables into the next switch port as you make
connections.
Use the following steps to connect a single, nonredundant controller to the host using
two switches:
1. Configure the controller. See “Configuring a Single Controller,” page 5–6.
2. Ensure the host and adapter are also configured. See the host user’s guide for
details.
3. Connect the cable between host port 1 on the controller and the switch port on the
switch.
4. Connect the cable between host port 2 on the controller and the switch port on the
switch.
5. Connect the host bus cable between the switch and the host adapter.
6. Route and tie the cables as desired.
7. Turn on the subsystem.
Some operating systems may require you to start the host to see the devices
attached to the new controller. See the HSG80 Array Controller ACS Version 8.X
Release Notes for your operating system.