
6.2 Cabling the Subsystem in Sx300 Storage Array Position
7. Plug the other end of this cable into the appropriate port on the system I/O
panel at the rear of the system cabinet.
CAUTION
Do not apply power to the subsystem at this time.
8. Install a DSSI terminator in the bottom DSSI connector at the rear of the
subsystem.
6.2.2 Dual-Host Configuration
Use the following procedures for cabling a magazine tape subsystem in an
existing Sx300 storage array configured for dual-host.
6.2.2.1 Cabling TF1
WARNING
Before performing the following steps, refer to the system documenta-
tion for the correct steps to perform an orderly shutdown of the system
that the Sx300 storage array is connected to.
1. Take the disk ISEs in position 1 off-line before you proceed. To do so, first
take each ISE off-line by pressing the Ready buttons. Then press all the
drive dc power switches to the out position. Last, turn off the ac power at
the rear of the storage enclosure.
CAUTION
Use care not to disturb or damage power cords and DSSI cables that
are already connected to the DSSI I/O panel.
2. Disconnect the 70-inch DSSI cable (part number BC21R–5L) connected to
the rightmost DSSI connector at the rear of the SF72 enclosure in position
1.
3. Connect the 70-inch DSSI cable removed from the SF72 storage enclosure
to the top DSSI connector on the rear of the magazine tape subsystem.
4. Route this DSSI cable on the right side of the cabinet.
6–20 Installing the Magazine Tape Subsystem in an Sx300 Storage Array
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