Adaptec 29320ALP Manuale utente
ADAPTEC SCSI CARD 29320ALP
INSTALLATION GUIDE
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Introduction
The Adaptec SCSI Card 29320ALP enables you to connect up to 15
SCSI devices—such as very large arrays of high-performance hard
disk drives, external storage subsystems, Ultra320/160 hard disk
drives, scanners, and CD-ROM drives—to any Intel-based
computer with 64- or 32-bit PCI/PCI-X expansion slots.
The Adaptec SCSI Card 29320ALP is a single channel SCSI card
with a maximum throughput of 320 MB/sec. You can connect
Ultra320/160 and Ultra2 SCSI devices to the internal 68-pin Low
Voltage Differential/Single-Ended (LVD/SE) connector and the
external very high-density cable interconnect (VHDCI) connector.
Although the Adaptec SCSI Card 29320ALP is a 64-bit PCI/PCI-X
card, it also works in a 32-bit PCI slot. When installed in a 32-bit
PCI slot, the card automatically runs in the slower 32-bit mode.
This installation guide explains how to:
■Install the Adaptec SCSI Card 29320ALP
■Set up SCSI devices
■Connect SCSI devices
68-pin internal LVD/SE connector
68-pin external
LVD/SE VHDCI
connector
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Note: If you connect Wide Ultra/Ultra SCSI devices to the
same SCSI channel as Ultra320/160 and Ultra2 SCSI devices,
the data transfer rate for the Ultra320/160 and Ultra2 SCSI
devices will drop to Ultra SCSI performance levels. To achieve
maximum data transfer rates for the newer SCSI devices, be
sure to connect them on their own SCSI channel.
Installing the Adaptec SCSI Card 29320ALP
1Discharge any static electricity build-up before handling your
SCSI card by touching a grounded metal object (like the
exposed metal parts on the back of your computer).
Warning: Turn OFF power to the computer and disconnect
the power cord.
2After you turn off your computer and unplug the power cord,
remove the cover from the computer.
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3Locate an unused 64-bit PCI/PCI-X expansion slot and remove
the expansion slot cover. If the computer does not have a 64-bit
slot, you can install the card in a 32-bit PCI slot. The Adaptec
SCSI Card 29320ALP supports both 5V and 3.3V 64-bit slots.
(The expansion slot must be compliant with PCI Rev. 2.1 or
PCI-X Rev. 1.0 and must support Bus Mastering.) Save the slot
cover screw for use in Step 4.
Computers may have vertical or horizontal expansion slots.
Refer to your computer manual to locate the PCI/PCI-X slots. If
your computer is a tower model, lay it on its side to allow for
easier installation of the Adaptec SCSI Card 29320ALP.
Warning: Be careful when inserting the Adaptec SCSI Card
29320ALP in a PCI slot. Some 32-bit slots will not
accommodate it, and the card may break if you force it into
the slot.
Slot cover screw
Expansion slot
cover
64-bit PCI slot
32-bit PCI slot
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4Insert the Adaptec SCSI Card 29320ALP in the 64-bit (or 32-bit)
PCI or PCI-X expansion slot; press down firmly until the card
clicks into place, then replace the slot cover screw. When
installed properly, the card should appear level with the
expansion slot, as shown below.
Setting Up SCSI Devices
There are several things you may need to do to your SCSI devices
before you connect them to the Adaptec SCSI Card 29320ALP:
■Check the SCSI IDs
■Set the termination
■Connect the power cables
Since setup can vary from device to device, always refer to the
device’s documentation for specific instructions.
Following are some guidelines for setting SCSI IDs and termination
on your devices.
Check the SCSI IDs
The Adaptec SCSI Card 29320ALP and each device you connect to
it must have a unique SCSI ID number ranging from 0 to 15 on each
channel. No two devices on the same SCSI channel can have the
same SCSI ID.
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The Adaptec SCSI Card 29320ALP is preset to ID 7 for each channel
and should not be changed. If you boot from a SCSI hard disk,
make sure the hard disk SCSI ID is set to 0. (Most SCSI hard disks
are preset to SCSI ID 0 at the factory.) The SCSI IDs for internal
devices are usually set with jumpers; SCSI IDs for external devices
are usually set with a switch on the back of the device.
Terminate the Ends
To ensure reliable communication on the SCSI bus, the device at the
end of each cable, or the end of the cable itself, must have a
terminator installed (or enabled). Terminators must be removed, or
termination must be disabled, on devices between the ends of each
cable.
Note: When connecting Ultra320/160 or Ultra2 SCSI devices,
the SCSI bus must be terminated either on the end of the cable
(with a permanent terminator) or with a separate terminating
connector. Ultra SCSI and earlier single-ended devices can
terminate the bus directly from the device. If you use an Ultra
SCSI terminator on an LVD Ultra320/160 and Ultra2 SCSI
bus, the SCSI devices will not operate properly. For this
reason be sure that you have the necessary Ultra320/160 or
Ultra2 cable and terminator before installing the Ultra320/160
SCSI devices.
Connecting SCSI Devices
You can connect a total of 15 SCSI devices to the Adaptec SCSI
Card 29320ALP. Before connecting devices, be sure to review
Setting Up SCSI Devices on page 4.
Connecting Internal Ultra320/160 and Ultra2 Devices
A special 68-pin internal LVD cable is needed to connect internal
Ultra320/160 or Ultra2 SCSI devices. If your cables are not marked,
you can identify most LVD cables as having twisted pairs of the flat
ribbon cable between the device connectors. Some cables are
laminated so that they lay flat. Internal LVD cables usually have a
terminator built into the end of the cable.
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The Adaptec SCSI Card 29320ALP has one internal LVD/SE
connector to which you can connect internal SCSI devices.
Note: Adaptec recommends that you keep your Ultra320/160
and Ultra2 SCSI devices separate from your Ultra SCSI
devices. If you connect a legacy SCSI hard disk drive to the
Adaptec SCSI Card 29320ALP LVD/SE connectors, the
Ultra320/160 and Ultra2 SCSI hard disk drives will slow to
Ultra SCSI performance levels.
Follow these steps to connect your internal Ultra320/160 and
Ultra2 devices:
1Locate a 68-pin internal LVD SCSI cable, which may have either
twisted wires or flat wires, shown as follows.
Nonterminated end
Terminated end
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2Plug the nonterminated end of the cable to the internal LVD/SE
connector.
3Plug the internal Ultra320/160 and Ultra2 SCSI devices to the
other cable connectors, starting with the connector at the
terminated end of the cable.
Note: Internal Ultra320/160 and Ultra2 SCSI devices come
from the factory with termination disabled and cannot be
changed. Proper termination is provided by the terminator
at the end of the LVD SCSI cable.
4Connect a power cable from your computer’s internal power
supply to each internal SCSI device.
Ultra320/160 or Ultra2
SCSI devices
Built-in terminator on cable
Plug first device to
this connector
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Connecting External SCSI Devices
You can connect external Ultra320/160 and Ultra2 SCSI devices to
the 68-pin external LVD/SE VHDCI SCSI connectors. Each external
device will require a 68-pin VHDCI external LVD SCSI cable.
Follow these steps to connect your external SCSI devices:
1Connect one end of an external SCSI cable to one of the external
Ultra320/160 connectors on the Adaptec SCSI Card 29320ALP.
2Connect the other end of the cable to a SCSI connector on the
back of an external device. If you are installing only one
external device, terminate the device and skip to Step 4.
68-pin external LVD/SE
VHDCI SCSI connector
VHDCI external LVD SCSI
cable
4
4
SCSIterminator
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3Connect the other external SCSI devices by linking each device
to the previous one, as shown below. Terminate only the device
at the end of the chain.
4Connect power cables to all external device(s) and to the
computer.
More Information About Termination
The last SCSI device on the end of each SCSI bus cable must be
terminated, and termination must be disabled for all other devices
in the middle of the cables. Ultra320/160 and Ultra2 SCSI devices
are automatically unterminated, but Ultra SCSI and Fast/Wide
SCSI devices do have termination that you must check. For more
information, refer to the documentation for each SCSI device.
If you are using external Ultra2 or Ultra320/160 devices, be sure to
use an LVD terminator to terminate the last device in the chain. If
you use a single-ended, active terminator (sometimes called an
Ultra terminator) the SCSI devices will not operate properly.
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