Adaptec AVA-2906, User Reference Manual

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SCSI Card 2906 User’s Reference
Installing Multiple SCSI Cards
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You can install multiple SCSI cards in your computer; you are
limited only by the available system resources (for example,
IRQ settings, I/O port addresses, etc.) not used by other cards
installed in your computer.
■
Each SCSI card you install forms a separate SCSI bus with a dif-
ferent set of SCSI devices. SCSI IDs can be reused as long as the
ID is assigned to a device on a different SCSI card (for example,
each SCSI card can have a device with SCSI ID 2).
Using SCSI and IDE (or EIDE) Devices
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All Adaptec SCSI cards can coexist with another controller
(IDE, EIDE, RLL, etc.) installed in the computer.
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If you have both an IDE hard disk drive and a SCSI hard disk
drive, the IDE drive will be the boot drive.
■
You cannot connect an IDE device to a SCSI card, or a SCSI
device to an IDE card (controller).
Replacing a Non-Adaptec SCSI Card with an
Adaptec SCSI Card
To use a hard disk drive previously connected to a non-Adaptec
SCSI card, you must low-level format the drive after connecting it to
the Adaptec SCSI card. (See Using SCSI Disk Utilities on page 19.)
Caution:
A low-level format destroys all data on the drive.
Be sure to back up your data before performing a low-level
format.