Freecom TapeWare LTO 460i, Руководство пользователя

Страница: 9 / 40

77
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.
table 1: supported SCSI bus types
SCSI Bus Type Transfer Speed Supported
Ultra 3 (160) LVD Up to 160 MB/s Yes. This is the recommended configuration.
Ultra 4 (320) LVD Up to 320 MB/s Yes . This is the recommended configuration for more
than one drive per bus.
Ultra 2 LVD Up to 80 MB/s Yes, but this will not provide optimum performance.
Single-ended, wide Up to 40 MB/s Yes, but this is not recommended as it will severely
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. This is for
disk drives only.
2
Are the SCSI ribbon cable
and HBA card rated at Ultra
3 (160) or Ultra 4 (320)?
(Make sure the ribbon cable
is terminated. See page 19.)
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.
Performance may be impaired. See
table below.
Consider replacing
your card with one of the
recommended HBAs.
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.)
No?
Yes?
Yes?
No?
No?
gen2 internal oem.fm Page 7 Thursday, February 13, 2003 3:03 PM