Quantum FIREBALL PLUS AS 10.2 User Manual

Installation
3-16 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT
• Use a hard disk controller that translates the hard drive parameters to
an appropriate setup for both MS-DOS and the computer system’s
ROM-BIOS.
• Insert the Alternate Capacity (AC) jumper on the drive (see Section
3.3.5).
3.9.2
3.9.23.9.2
3.9.2 The 8.4-Gigabytes Barrier
The 8.4-Gigabytes BarrierThe 8.4-Gigabytes Barrier
The 8.4-Gigabytes Barrier
Newer BIOS’s allow users to configure disk drives to go beyond the 528 MB
barrier by using several BIOS translation schemes. However, while using these
translations the BIOS using Int 13 functions are limited to 24 bits of addressing
which results in another barrier at the 8.4 GB capacity.
To overcome this barrier a new set of Int 13 extensions are being implemented by
most BIOS manufacturers. The new Int 13 extension allows for four words of
addressing space (64 bits) resulting in 9.4 Terrabytes of accessible space.
Whenever possible the Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB
AT drive should be used on systems with BIOS that support Int 13 extensions. If
that is not possible the following are some techniques that can be used to
overcome this barrier:
• Use a third party software that supplements the BIOS and adds Int 13
extension support.
• Obtain a BIOS upgrade from the system board manufacturer. Many
system board manufacturers allow their BIOS to be upgraded in the
field using special download utilities. Information on BIOS upgrades
can be obtained on the System Board Customer Service respective
web sites on the Internet.
• Insert the Alternate Capacity (AC) jumper on the drive (see Section
3.3.5).
3.9.3
3.9.33.9.3
3.9.3 Operating system limitations
Operating system limitationsOperating system limitations
Operating system limitations
Most popular operating systems available today have additional limitations which
affect the use of large capacity drives. However, these limitations can not be
corrected on the BIOS and it is up to the operating system manufacturers to
release improved versions to address these problems.
The most popular operating systems available today, DOS and Win 95, use a File
Allocation Table (FAT) size of 16 bits which will only support partitions up to 2.1
GB. A newer release of Win 95 called OSR2 with a 32 bit FAT has been released
to system manufacturers only. This new FAT size table will support partitions of
up to 2.2 Terrabytes.

Quantum FIREBALL PLUS AS 10.2 Specifications

General

Brand	Quantum
Model	FIREBALL PLUS AS 10.2
Category	Storage
Language	English