4. Route the cables from the pass-through location to their respective controllers
as follows:
• Route the cable across the interior of the cabinet to an opening in the
vertical cabinet rail behind the two right-hand shelf brackets of positions
C1 and S3 (refer to Figures 5–1 and 5–2).
• Pass the cable through the opening and out to the front of the cabinet
through the space between the C1/S3 shelf brackets to the front controller
in position C1.
5.5 Shelf Signal Cabling and Routing
5.5.1 Shelf SCSI–2 Cable Selection and Connection
Refer to the
StorageWorks Family Configuration Guide
and the
StorageWorks
BA350-EA Modular Storage Shelf User’s Guide
for details on the selection of
SCSI–2 cables and their connection to the cabinet’s shelves.
5.5.2 SCSI–2 Cable Routing
SCSI–2 cables from the front controller to the controller’s associated front storage
shelves are normally routed along the right-hand vertical cabinet rail to the
right-hand side of each shelf. Half-meter, SCSI–2 cables are normally used to
link adjacent shelves or tape drives to each other.
SCSI–2 cables connecting front shelves to rear shelves pass to the rear of the
cabinet via the opening between the right-hand shelf brackets at positions S4 and
S9 (refer to Figure 5–1). They pass through this opening and into the interior
of the cabinet through the opening in the vertical cabinet rail behind the S4/S9
brackets. They then pass across the interior of the cabinet to the unused shelf
position above the CDUs. They pass through the right-hand side of the unused
shelf position and along the right-hand cabinet rail to the appropriate rear
shelves.
When TZLX-series tape drives are installed, there is a space between the bottom
of the drives and shelf position S3 (refer to Figure 5–2). This space is normally
used for the routing of SCSI–2 cables from the rear to the front of the cabinet.
Table 5–1 specifies the SCSI–2 cable length required to connect each controller
position with its companion shelves in SH043 controller/storage cabinets.
Table 5–1 SH043 Controller/Storage Cabinet SCSI–2 Cable Lengths
Controller Position
Storage Shelf Position
Cable Length
Required
C1
S1, S2, S3, S4, S9
1.00 m (3.28 ft)
C1
S5, S6, S7, S8
2.00 m (6.56 ft)
C1
T1, T2
2.00 m (6.56 ft)
C2
S5, S6, S8
1.00 m (3.28 ft)
Configuring SH043 Controller/Storage Cabinets
5–5
