9710 (StorageTek) Addendum for NonStop Servers

Addendum to the StorageTek 9710 for the Tandem Environment
Installing and Configuring the 9710 Automated Cartridge Subsystem
3-11
3.12 Drive Configurations
Installation of the 5155/5159 Tape Drive FRUs in the 9710
Automated Cartridge Subsystems depends on the number of
drives installed in the subsystem. Keep the following points in
mind when making connections.
• An MFC can support only one drive. For a module containing
two drives, attach the drives to separate MFCs. The MFC
uses copper cable for attachment and does not require a back-
end board (BEB). See figure 3-5.
Figure 3-5 MFC Drive Configuration
• One 3216 controller can support one or two drives. In the two-
drive configuration, a daisy-chained SCSI cable passes commands
and information between the drives. The daisy-chain cable and the
SCSI terminator required to terminate the unused receptacle are
installed at the factory (see Figure 3-6 and Figure 3-7).
The 3216 controller attaches to the drive FRU using fiber-optic cable
and requires a BEB to translate fiber-optic signals into SCSI data.
Install the BEB by plugging it in to the SCSI port and securing the
wing nut. (See “Installing the BEB (3216 Only)”.) One BEB can
support two drives.