How to install the demo version of HDDRIVER:

Make sure that you have an XHDI compatible hard disk driver installed.
XHDI compatible are current versions of CBHD, HuSHI, hdpSTACK and
HDDRIVER,of course. All other drivers for the Atari up to now are not
XHDI compatible.(There are even drivers on the market that are still
incompatible with the official AHDI 3.00 Release Notes from 1989.) If
none of the drivers above is installed, copy the file HDDRIVER.PRG on
to a floppy disk. Now boot your system from floppy disk and start the
program HDDRIVER.PRG. Now start HDDRUTIL.PRG and choose "Install" from
the "Harddisk" menu. A dialog is displayed and you have to choose
drive C from the list of drives and press OK. After this operation
reboot your Atari, HDDRIVER is active then. HDDRIVER initially
recognizes only one drive on each bus (IDE device 0, SCSI device 0,
ACSI device 0). If you have more drives you have to configure HDDRIVER
appropriately. Choose the "Device Numbers" menu entry for this and
select the file HDDRIVER.SYS on partition C: in the fileselector box.
Now you can select all valid device numbers and leave the dialog with
OK. You can remove HDDRIVER simply by installing another hard disk
driver according to the installation instructions for this driver.

NOTE: Drives that were partitioned with not too recent versions of the
ICD hard disk software are not AHDI compatible if they have more then
4 partitions. In this case the installation of an AHDI compatible
driver requires repartitioning your drive with an AHDI compatible
software package. Don't use the MagiC 3 write back daemon if you make
use of non-blocking data transfers. Preemptive multitasking should be
activated by the MagiC timeslice CPX when using non-blocking
transfers. So please remove the line with the TSL keyword from the
file MAGX.INF. When using bus arbitration (some drives require this,
especially the newer Quantum drives) you have to choose a SCSI ID for
TT and Falcon higher than any other SCSI ID on the SCSI bus. TOS can't
boot from drives that require bus arbitration. This can't be
circumvented by a hard disk driver. On the Atari ST drives that
require bus arbitration won't work at all.

YOU HAVE BEEN WARNED NOW.

Limitations of the HDDRIVER demo version:

- Data can't be written on other partitions than C.

- Writing data is much slower than in the unlimited version.

- SCSI and IDE drives can't be configured.

- No special support for ICD compatible host adapters.  (-> no drives
  > 1 GByte on the ACSI bus, no verify on the ACSI bus)

- Partitioning is not supported.

- No software based write protection of partitions and boot or root
  sectors.

- No additional configuration software (CPX, ACC).

The most important features of the commercial version:

- Works with hard disks, removable devices, MOD drives and ZIP drives

- Full AHDI compatible.

- XHDI compatible, supports all XHDI 1.25 calls including the optional
  ones.

- XFRB 1.01- GEMDOS cache can be configured.

- Write protection for single partitions and for boot and root
  sectors.

- Support for DOS-formatted media with partitions < 32 MByte.  (Bigger
  DOS- compatible partitions can't be handled by TOS.  Hard disk
  drivers can't do anything about this.)

- Supports byte swapped DOS media.

- SCSI bus arbitration support (only TT and Falcon)

- You can choose the boot partition by pressing a key or depending on
  the computer's SCSI ID.  (This is important for bus arbitration.)

- Fast booting because you can configure the device numbers to be
  checked.

- Support of two IDE units (master and slave)

- Arbitrary order of devices.

- Special support for ICD compatible host adapters. This allows drives
  > 1 GByte on the ACSI bus.

- HDDRIVER works with several drives that won't run with AHDI.  -
  Important parameters of most SCSI drives can be configured (Cache,
  Parity,  Unit Attention).

- With MagiC 3 there are up to 23 hard disk partitions which can be
  accessed without any limitation.

- With MagiC 3 DMA data transfers can occur in the background, i. e.
  non- blocking. Applications continue to run while data are
  transferred.

- CPX and ACC for configuring HDDRIVER- Software for automatic parking
  of hard disk drives is included.

=====================================================================

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      Severna Park, MD 21146-2925 USA

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                                    Also TOAD on Genie

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      Get the latest WEB BROWSER for the Atari, too! It's available
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      Thanks from ALL OF US here at Toad -- Dave, Jennifer, Ray,
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      We appreciate your support!!!

===================================== (C) 1995 Toad Computers ======
