Microsoft KB Archive/130930

= Creating a Boot Floppy for a Multibus SCSI Adapter =

Article ID: 130930

Article Last Modified on 10/31/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Server 3.5

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This article was previously published under Q130930



To create an FT boot floppy to boot the mirror drive attached to the secondary channel/bus of a Multibus SCSI adapter, you must modify the Arc path in the BOOT.INI file. For scsi(x)disk(y)rdisk(z)parition(a), the variable (y) should be calculated as follows:

y= [ (scsi bus/channel number) x (32) ] + (scsi id of the disk)

For example, the Adaptec AHA-2740T/2742T has two channels; SCSI Channel A (bus 0) and SCSI Channel B (bus 1). Each channel can accommodate a SCSI bus with up to seven devices. If the Windows NT mirror drive is located on the first partition on a SCSI disk with the target ID of 4, and is connected to SCSI Channel B (bus number 1) of an Adaptec AHA-2742T controller, the ARC name in the BOOT.INI file would be:

scsi(0)disk(36)rdisk(0)partition(1)

Additional query words: prodnt

Keywords: KB130930

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