95741 Sixth Edition 3-5
Hubs
A 9840 Tape Drive can be connected to an AS/400 through a 6501, 6534, or
2729 IOP using a 68-pin SCSI cable (listed in the preceding table).
Note: The 6501 IOP also requires an interposer (order from IBM P/N
05H3834).
■Hubs
Because of the fast growth and the increased demand for FC attachments, hubs
can provide cascading (multiple) loops within a FC network. StorageTek tape
drives are designed to use hubs to provide for an arbitrated loop which
provides the following capabilities:
•Centralizes the attachment of the tape drives within the arbitrated loop
•Establishes connections with fiber-optic cables
•Provides translation of physical media (such as copper to optical fiber)
•Provides an external power supply for the port bypass
•Provides port bypass functionality for port failures
•Allows cascading to increase tape drive and initiator attachment
Table 3-2. SCSI Cable Part Numbers
Standard Rated
Cable (CL2)
Plenum Rated
Cable (CL2P) Length (meters) Length (feet)
10083309 1008313 3 10
10083310 1008314 4 20
10083311 1008315 15 49
10083312 1008316 20 65
Figure 3-3. SCSI Cable Connectors
C53686