Figure 5-2 I/O Module Location; Figure 5-3 I/O Module Numbering - Compaq StorageWorks DS-BA370 Series User Manual

Single-Ended I/O Module
5–2 UltraSCSI RAID Enclosure
Not all array controller firmware supports an UltraSCSI
RAID subsystem with more than one enclosure. Refer to
the array controller documentation to ensure that the
controller supports expanded configurations.
Six I/O modules mount on the bottom rear (see Figure 5–2,
C 1) of each enclosure. These modules connect the array
ALLOUT
controller to the devices in the expansion enclosures. In an UltraSCSI
RAID subsystem, the I/O module number corresponds to the SCSI
bus number. For example, SCSI bus 2 and I/O module 2 are different
elements of the same physical bus.
Figure 5–2 I/O Module Location
Odd numbered I/O ports are located in the bottom row and even
number ports are located in the top row (see Figure 5–3). Viewing
from the enclosure rear, port 1 is in the lower right corner and port 6
is in the upper left corner.
Figure 5–3 I/O Module Numbering
6
5
Note
Figure C
1.
2
1
4
3
6
5
1
CXO5805B
4 2
3 1
CXO5819A
ALLOUT
SCSI bus
ports (1–6) for
I/O modules
(1–6),
respectively