Adaptec APA-348 Installationsanleitung PDF herunterladen (Seite 8)

APA-348 Installation Guide

Part Number: 510603-00, Rev. A

Print Spec Number: 492716-00

Current Date: 5/19/94 ECN Date: 5/31/94

The /M1 setting enables blind mode, and /M0 (or no

/M entry) is standard full handshaking. The change is

made to the line device=[

path

]ma348.sys in your

config.sys

file, using any standard text editor. For

example, to turn full handshaking off for better per-

formance, the line should look something like this:

device=\tscsi\ma348.sys /m1

After making this change and saving your

config.sys

to your boot drive, reboot your computer for the

change to take effect.

Testing Blind Mode Operation

After modifying your

config.sys

file and rebooting,

immediately conduct some simple tests to determine

whether your installation is compatible with blind

mode. Follow this sequence:

1 Observe the system bootup closely. As the

CD-ROM and/or hard disk drivers load, watch

for messages like No SCSI devices detected, No

Boot Record Found, etc. As

MSCDEX

loads,

watch for a CDR103: CDROM not High Sierra or

ISO-9660 format error message. If any of these

messages appear, your system configuration does

not support blind mode.

2 If step 1 reveals a problem, you might be able to

operate in blind mode by setting your computer’s

CPU speed to a lower value. This change is gener-

ally done with a software setup routine—see your

computer’s documentation for details.

If a computer speed decrease does not help, then

you must remove the /M1 switch from

config.sys

immediately and reboot. Continued operation of

an incompatible system will result in SCSI data

corruption.

3 If step 1 reveals no problems during bootup, we

recommend the following additional tests:

a Perform a dir command on all SCSI devices to

see if the directory structure is correctly

reported. Do not run any other DOS com-

mands yet. If a problem is evident (such as

incorrect file names, garbage characters in the

directory listing, etc.), you probably do not

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