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5.1.4 T
ASPI R
HE
EMOVABLE
INIDISK.SYS is a DOS "block" device driver for supporting SCSI fixed disks,
removable disks, and MO (magneto-optical) devices. INIDISK.SYS requires that the
Ultra2 LVD SCSI Host Adapter's ASPI Manager be loaded. A "DEVICE=" or
"DEVICEHIGH=" command line to load INIDISK.S'YS is automatically added to
the CONFIG.SYS startup file by the DOSSETUP program. (You will be asked
whether or not you want to load this driver high; the program will add the
correpsonding command to CONFIG.SYS depending on how you answer.)
INIDISK.SYS is on Driver Disk 1. It has three command-line options—/R, /T, and
/X:—as described below.
/R or /r—This option specifies the number of logical drives to reserve for MO and
removable-disk devices. MO and removable-disk media are capable of being
partitioned just like a fixed disk. For every DOS partition on the medium, a logical
DOS drive letter needs to be available. INIDISK.SYS will support as many logical
drives as required (up to the maximum supported by DOS), based on the
partitioning of the medium that is present when your system boots. However, the
medium may be removed at any time and a new disk may be inserted. The new disk
may have more (or fewer) partitions then the original disk.
Use this option to reserve drive letters at startup in order to make it possible to
swap in a disk with more partitions than the original disk present at boot time had.
The value after the /R or /r determines how many drive letters will be reserved per
device. For example, if the user specifies /R4 and there are two devices attached to
the SCSI bus, then a total of eight drive letters will be reserved.
/T or /t—Use this option to specify a timeout value to be used when sending
commands to a SCSI drive. If a SCSI drive does not respond to a command within
the specified timeout period, the command will be aborted and an appropriate
error message will be displayed. The timeout value is specified in minutes. Valid
values are "1" (one minute) through "9" (nine minutes) and "D" or "d" (timeout
disabled). We do not recommend disabling the timeout—if you do, faulty
hardware will be able to lock up your system. Examples of valid command-line
phrases:
• /T4
• /Td
• /TD
• /T1
-D
D
I
ISK
RIVER AND
CHAPTER 5: Driver Installation
C
L
TS
OMMAND
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41
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