HP StorageWorks Ultrium Full-Height SCSI Tape Drives User Guide (EH853-90905, August 2007)

Use a small screwdriver or a ball-point pen to press the indented SCSI ID selector buttons on the
rear panel (see Figure 12) until the required value is displayed. Do not use a pencil because small
bits of graphite cou ld contaminate the drive.
NOTE:
TheserverandthetapedriveSCSIIDsareonlycheckedatpower-on.TochangetheSCSI
ID after installation, power down both the server and the tape drive, change the drive’s
SCSIID,powerupthetapedrive,andthenpoweruptheserver.
Connect the SCSI cable
A 68-pin, wide VHD-to-HD SCSI cable is provided to connect your HP StorageWorks Ultrium tape d rive to
a VHD SCSI p ort on an LVD SCSI bus. If your server has an HD SCSI port, you must either purchase and
install a VHD-to-HD adapter or use an HD-to-HD cable instead of the supplied cable. Refer to our web
site for recommended products: h
ttp://www.hp.com/go/connect.
CAUTION:
To avoid damaging the computer or tape drive, ensure that both are powered off while you attach
the SCSI cable.
1. Make sure you are connecting to a recommended SCSI bus type. For optimum performance your
tape drive should only be c onnected to a SCSI bus that can transfer data at a rate that supports
the tape drive’s maximum burst transfer speed. HP Ultrium 1840 and 960 tape drives should be
connected to an Ultra320 SCSI b us. See alsoWhyistheSCSIbustypeimportant?.Donot connect
the tape drive to a single-ended SCSI bus or to RAID controller. Fo r optimum performance, we
recommend that your HP StorageWorks Ultrium drive is installed on a dedicated SCSI bus. If it is n ot,
do not connect it to the same bus as your disk drive.
2. Perform a normal system shutdown and turn off the server and any connected peripherals.
3. Attach the VHD connection on the SCSI cable to the server’s external SCSI connector and secure
it by tightening the screws.
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Installing an external Ultrium tape drive