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Step 1: Check the SCSI connection
Use the following questions to help you check your SCSI connection. Most users can use HP
Library & Tape Tools to check the SCSI bus, see page 33. If you answer ‘Yes’ to all these
questions, you are ready to install your tape drive. If you answer ‘No’, you will probably need
to purchase and install additional items.
For product details, go to
www.hp.com/go/connect.
table 1: supported SCSI bus types
Note If you attach your drive to a higher-rated SCSI bus, the internal SCSI cable should be of the
same specification as the SCSI HBA. For example, if you connect an Ultrium 460 to an Ultra
320 bus, make sure that the internal cable supports Ultra 320.
SCSI Bus Type Transfer Speed Recommended for
960 460 230
Ultra 320 LVD Up to 320 MB/s Yes, one drive
only per bus
Yes, for up to two
460 drives per bus
Yes
Ultra 160 LVD Up to 160 MB/s Acceptable Yes, one drive only
per bus
Yes, for up to two
230 drives per bus
Ultra 2 LVD Up to 80 MB/s No Acceptable Yes, one drive only
per bus
Single-ended,
wide
Up to 40 MB/s No No Acceptable, but it will
restrict performance.
Do not connect to a narrow SCSI bus.
High Voltage
Differential
Up to 40 MB/s No. The drive will not work and you may damage the drive or
controller.
1 Is there a spare SCSI port on
the server’s internal SCSI
bus?
3 Will the drive be the only
device on the bus? This is the
recommended configuration.
Do not connect to a RAID
controller channel.
2 Does the SCSI bus type
match the drive type, Ultra
320 for Ultrium 960, Ultra
160 for Ultrium 460, Ultra 2
for Ultrium 230?
(Make sure the ribbon cable
is terminated. See page 19.)
Performance may be impaired,
depending upon the tape drive model
and SCSI bus. Ultrium 960 drives
should always be on a dedicated bus.
See table below.
Performance may be impaired.
Consider replacing your card with one
of the recommended HBAs. See table
below.
Purchase and install one of the
recommended HBAs into an unused
64-bit PCI expansion slot. See table
below.
No?
Yes?
Yes?
No?
No?
ult960_master_internal.fm Page 9 Tuesday, September 21, 2004 4:13 PM