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                      RAIDDOS.TXT --- INTRODUCTION
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Congratulations on purchasing your new Adaptec PCI RAID Adapter.  
This board provides RAID solutions with an unprecedented 
price/performance ratio. The AAA-131 is one SCSI channel PCI RAID 
Adapter. The AAA-132 is two SCSI channels PCI RAID Adapter. AAA-133 
is three SCSI channels PCI RAID Adapter.


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                     DOS Drivers for CD-ROM access
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CD-ROM drivers only need to be installed if DOS access to a CD-ROM
drive attached to the ARO-1130 or AAA-131 or AAA-132 or AAA-133 is 
required.  If NetWare is already installed, or if the CD-ROM drive is 
not connected to the ARO-1130 or AAA-131 or AAA-132 or AAA-133
these drivers do not need to be copied or installed.

This disk provides the following DOS drivers:

1. ASPI8DOS.SYS version 1.27

DOS ASPI driver for ARO-1130, AAA-131, AAA-131, AAA-133.  Only needed 
if ASPICD.SYS will be loaded.

2. ASPICD.SYS

DOS ASPI driver for CD ROM devices.  Not needed if CD-ROM access is
only required from NetWare.

Following systems files should be modified as discussed:

1. CONFIG.SYS

Modify CONFIG.SYS for loading ASPI8DOS.SYS and ASPICD.SYS, necessary
for connecting a CD-ROM.  Either create this file in C:\ if you do not
currently have a CONFIG.SYS, or add these lines to the existing
CONFIG.SYS.  Note that you may need to change the path for the
drivers.

          DEVICE=C:\SCSI\ASPI8DOS.SYS /D
          DEVICE=C:\SCSI\ASPICD.SYS /D:ASPICD0


2. AUTOEXEC.BAT

Modify AUTOEXEC.BAT for loading MSCDEX, which is necessary for
connecting a CD-ROM. Add this line to the existing AUTOEXEC.BAT:

          MSCDEX.EXE /D:ASPICD0 /M:12

This will assign the CD-ROM to the next available driver letter,
typically D: if there is only one DOS drive.

If you are using MS-DOS V5 and do not already have MSCDEX, you will
need to either upgrade to V6.0 or above, or download MSCDEX from
Microsoft BBS or CompuServe forum.


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                      DOS Access to Array Devices
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Although the ARO-1130 or AAA-131, AAA-132, AAA-133 BIOS provides 
INT 13 BIOS access to array devices, including fault-tolerant access 
even with a down drive, none of the hot spare or reconstruct options 
are available from DOS. BIOS access is intended as a means of booting 
NetWare.

During DOS access, if enough drives fail to take an array off-line
(more than one drive of a RAID5 array, or any drive of a RAID0 array,)
DOS will give the standard "General failure reading drive" error
message.  No message is given for a single drive failure in a RAID5
array.

Once NetWare is loaded, CI/O Array Management Software will report 
any error conditions.  If a hot spare is available, it will 
automatically be invoked.
			   
Because of the above issues, using the ARO-1130 or AAA-131, AAA-132, 
AAA-133 in a DOS or Windows environment is not recommended.

