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Step 1: Check the SCSI connection
Use the following questions to help you check your SCSI connection. 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.
Is there a spare SCSI port on
1
the server's internal SCSI
bus?
Are the SCSI ribbon cable
2
and HBA card rated at Ultra
3 (160) or Ultra 4 (320)?
(Make sure the ribbon cable
is terminated. See page 19.)
Will the drive be the only
3
device on the bus? This is the
recommended configuration.
Do not connect to a RAID
controller channel. This is for
disk drives only.
SCSI Bus Type
Ultra 3 (160) LVD
Ultra 4 (320) LVD
Ultra 2 LVD
Single-ended, wide
High Voltage
Differential
table 1: supported SCSI bus types
No?
Yes?
No?
Yes?
No?
Transfer Speed
Up to 160 MB/s
Up to 320 MB/s
Up to 80 MB/s
Up to 40 MB/s
Up to 40 MB/s
Purchase and install one of the
recommended HBAs into an unused
64-bit PCI expansion slot. (The HBA
can also be installed in a 32-bit PCI
expansion slot, but performance may
be degraded.)
Performance may be impaired. See
table below.
your card with one of the
recommended HBAs.
If you have a spare PCI slot, install a
new Ultra 160 HBA to provide a
dedicated SCSI bus. If you have to
configure more than one drive on the
same bus, install an Ultra 4 (320)
HBA.
Supported
Yes. This is the recommended configuration.
Yes. This is the recommended configuration for more
than one drive per bus.
Yes, but this will not provide optimum performance.
Yes, but this is not recommended as it will severely
restrict performance.
Do not connect to a narrow SCSI bus.
No. The drive will not work and you may damage
the drive or controller
Consider replacing
7 7
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