Adaptec GDTSETUP Manual de usuario descargar pdf (Pagina 137)

137

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The GDT ASPI Manager GDTASPI.EXE allows you not only to run Not Direct Access Devices

(e.g., CD-ROMs, tapes, MODs etc.), but to control hard disks and removable hard disks, too

(the so-called Direct Access Devices). These devices are then no longer controlled by GDT-

SETUP but exclusively by the ASPI interface. The advantage is evident, in particular with

regard to removable hard disks (for example SyQuest). When using an appropriate ASPI

module to access these removable hard disks, for example ASPIDISK.SYS or UNI_ASP.SYS

from Corel, you can exchange the media of these drives under DOS without having to use

GDTSETUP. To the ASPI interface, the ICP Controller appears as one host-adapter. If there

are more SCSI controllers (even if from various manufacturers) in the system and corre-

sponding ASPI managers have been installed in the CONFIG.SYS file, you can determine a

controller's host adapter number by using the GDT program

ASPISCAN.EXE

. In order to

exclude that a Direct Access Device is run directly from the ICP Controller, it has to be reserved

for the ASPI interface control. To do so, certain parameters have to be specified when the

GDT ASPI manager is loaded:

DEVICE=GDTASPI.EXE /R:Hx1Iy1[:Hx2Iy2:Hx3Iy3 ...]

H: host adapter number

I: SCSI ID of the SCSI device to be reserved

x1, y1: host adapter number, SCSI ID

of the first SCSI device to be reserved

(in decimal form)

x2, y2: host adapter number, SCSI ID

of the second SCSI device to be reserved

(in decimal form)

Example: We assume that there is only one ICP Controller in the system. Two direct access

devices, the SyQuest removable hard disk connected to channel A, ID 2, and the Quantum

hard disk connected to channel B, ID 4, have to be reserved for the ASPI manager. The cor-

responding entry in the CONFIG.SYS is:

DEVICE=GDTASPI.EXE /R:H0I2:H1I4

Important note: SCSI devices reserved for the ASPI manager must not have been initialized

with GDTSETUP. Neither must they pertain to a GDT Logical or Host Drive. If necessary,

these devices can be de-initialized with GDTSETUP.

As already mentioned in paragraph 6 of this chapter, in addition to the ASPI manager an

ASPI module has to be present in order to be able to access the SCSI device under MS-DOS

with a drive name (e.g., D, E, etc.). In the following description you find how to install ASPI

interface-reserved direct access devices with the ASW ASPI module ASPIDISK.SYS and the

corelSCSI ASPI module UNI_ASP.SYS.

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Step 1:

Include GDTX0000.EXE, GDTASPI.EXE with appropriate reservations (../R:..), and

ASPIDISK.SYS in the CONFIG.SYS file, then do a warm reboot (Ctrl+Alt+Del).

Step 2:

Use the ASW program AFDISK.EXE to initialize the drive to be run through the ASPI

interface.

Step 3:

After the successful initialization, do a warm reboot (Ctrl+Alt+Del).

The CONFIG.SYS will be similar to the following (the relevant entries are printed bold):

device=gdtx000.exe

files=30

buffers=30

stacks=9,256

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