Host adapter setup, Initio, Device setup – Initio INI-9090U User Manual

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Host Adapter Setup

SCSI ID’s without devices attached. This allows for a better definition of location and

priority on the SCSI bus.

• A device ID should only be changed if it conflicts with another device address on the same bus. Refer

to your peripheral documentation for changing SCSI ID’s.

• The best ID for a bootable hard disk is SCSI ID-Ø.

Device Setup

Asynchronous Transfer. Use this option to set the synchronous data transfer mode.


will transfer data at a maximum rate of 20 MBytes per second in synchronous

mode and a maximum rate of 5 Mbytes per second in asynchronous mode. Use this

option to set the synchronous data transfer mode. The default setting for this option

is for synchronous operation. (no)
Maximum Synchronous Transfer Rate. This option determines the speed at which

data is moved across the SCSI cable.


has the option of running up to 20

MBytes per second.
DOS Space > 1 GB. Using this option allows for single disk capacities to be extended

up to 8 GBytes (yes). Please refer to the Appendix titled DOS Space > 1 GB for further

information on this feature.
• (NO) DOS limits the number of cylinders per drive to 1024. The host adapter defines

head and sector usage to 64 heads and 32 sectors. This format allows for maximum

capacity of 1 gigabyte per disk storage.

• (YES) The upper limit can be extended from 1 GByte to 8 GBytes by increasing the

number of heads to 255 and sectors used per track to 63. This is a powerful option.


Spin Up Disk Drive. This option is used to initiate motor spin-up for SCSI disk drives.

The host adapter BIOS can limit system power requirements during power-up. This is

accomplished by signaling the device to start at delayed intervals (default setting will

be ‘no’).
Enable Disconnect. The host adapter uses this option to allow a device to tempo-

rarily disconnect from the SCSI bus (referred to as disconnect/reconnect). This allows

the host adapter to perform other functions on the bus while the device is temporarily

disconnected. The device and the host adapter can then reconnect when the bus is

needed (default setting will be ‘yes’).