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Before you start
Ultrium Generation 2 tape drives are high performance Ultra 3 SCSI devices designed to
operate on a low voltage differential SCSI bus (LVDS). The tape drive is installed into a spare
drive bay in your server. To get optimum performance from your tape drive you need a SCSI
bus that can transfer data at a rate that supports the tape drive's maximum burst transfer
speed of 160 MB/second. We recommend an Ultra 3 (160) or Ultra 4 (320) SCSI bus.
Before starting to install your tape drive, you should consider the following:
How do I connect the tape drive to my server's SCSI bus?
Your tape drive is attached to the SCSI bus of the host server via a spare connection on the
internal SCSI ribbon cable. The cable must be terminated, see "Where should the SCSI
terminator be?" on page 17.
Server connection
You will need a properly installed and configured SCSI host bus adapter (HBA) or a built-in
SCSI controller on your server. For optimum performance your tape drive should only be
connected to an Ultra 3 (160) or Ultra 4 (320) host bus adapter or SCSI controller using a
correctly terminated, LVDS-compatible ribbon cable with a spare 68-pin, high density (HD),
wide SCSI connector. We recommend that the drive is the only device on the SCSI bus. Do not
attach the drive to the same SCSI bus as your disk drive or RAID controller.
See also Table 1, "supported SCSI bus types," on page 7.
What are the mounting requirements for the tape drive?
Mounting bay
You need one industry standard, 5¼-inch, full-height bay in which to install the Ultrium
Generation 2 tape drive. Power requirements are:
Voltage
5 V
12 V
Mounting hardware
For many servers, no mounting tray or rails are required. Devices simply slide into the
computer's chassis and are fixed with screws. Other servers have built-in trays or rails.
Some servers require a special mounting tray or rails to fix the drive into the empty bay. If this
is the case with your system, you will have to order these accessories from the computer
manufacturer before you can install the tape drive. Mounting hardware for HP servers may be
ordered separately through your tape drive supplier. (Not all HP servers require rails. Some
have a built-in mounting tray.)
Airflow requirements
The server must provide forced cooling and be capable of drawing 6 cfm (0.17 m
or 10.08 m
Typical Current
3.2 A
0.7 A
3
/hour) of air through the tape drive.
Maximum Current
6.3 A
2.75 A
3
/minute
3 3
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