HP Array Controller HSG V8.7 Software - Manual (Page 110)

Single-Ended I/O Module
5–8 UltraSCSI RAID Enclosure
Caution
The Compaq UltraSCSI controller does not support
connecting or disconnecting a SCSI bus cable when both
data and power are present on the connector—a “hot
swap.” Only connect or disconnect SCSI bus cables using
the “cold swap” method.
Table 5–2 UltraSCSI Bus Expansion Rules
1. The I/O module numbers (1 through 6) correspond to the enclosure
SCSI bus numbers.
2. Always connect cables between enclosures to the same I/O module
number. That is, connect I/O module 1 on the master enclosure to I/O
module 1 on an expansion enclosure.
3. The first cable on any I/O module always connects to the left
connector.
Note
Connecting a cable to the right I/O module connector removes
the external SCSI bus termination from the module.
4. The second cable on any I/O module always connects to the right
connector.
CXO5819A
6 4 2
5 3 1