With Mixed Partition Drives; Using Fdisk; Questions And Answers About Extended Bios Translation; Stock Number: 510609-00, Rev. B Page - Adaptec AVA-2822 User Manual

AVA-2820/2822/2825 User's Guide

Caution:
Do not enable the Extended BIOS Translation fea-
ture in non-DOS environments.

With Mixed Partition Drives

Do not use Extended BIOS Translation on drives formatted with two
or more partitions for different operating systems. Use standard
translation because the sum of the DOS partitions will be less than
1 GByte. Partitions for UNIX and NetWare can be larger than
1 GByte when using standard translation. UNIX is understood to be
AT&T/USL all versions, SCO v3.2.4 (or later), ISC v3.0 (or later), and
Novell UnixWare v1.0 (or later).

Using fdisk

To install a new disk, or to repartition an existing disk, use the fdisk
DOS utility as you normally would. The cylinder size increases to
8 MBytes when you enable Extended BIOS Translation. The size of
the partition you request must therefore be a multiple of 8 MBytes. If
you request a partition size that is not a multiple of 8 MBytes, fdisk
rounds up to the nearest whole multiple of 8 MBytes.
Questions and Answers About Extended BIOS
Translation
What happens if I enable Extended BIOS Translation with SCSI drives that are less
than 1 GByte in capacity?
Drives handled by the BIOS will use Extended BIOS Translation pro-
vided they are over 1 GByte in formatted capacity. Drives with less
than 1 GByte of formatted capacity will use standard translation
regardless of whether Extended BIOS Translation is enabled.
What if I have more than two SCSI hard disk drives on the host adapter?
You can use up to two physical hard disk drives under the BIOS (this
includes standard IDE or EIDE and SCSI hard disk drives). To sup-
port more SCSI devices, load EZ-SCSI Lite.
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