Changing Scsi Host Adapter Or Device Settings; Disabling Scsi Sync Negotiation - Intergraph InterServe 800 SL System Reference Manual

4. Do one of the following:
If the device is the last or only device on the SCSI chain, enable active SCSI
termination
If the device is not the last or only device on the SCSI chain, disable SCSI
termination
5. Ensure that the power switch on the device is in the off position, and then connect the
power cord to the device and then to an AC receptacle.
6. Turn on the power to the device and any other devices on the SCSI chain.
7. Start the system. If necessary, install the software drivers and configure the drive
according to the vendor's instructions.

Changing SCSI Host Adapter or Device Settings

Depending on system configuration, or the capabilities of SCSI devices connected to the
system, you may need to use the SCSI Configuration Utility to change host adapter or device
settings. See the System Setup delivered with the system for details.

Disabling SCSI Sync Negotiation

Use the following instructions if you need to disable the SCSI sync negotiation, which forces
the controller to transfer data at a specified rate (slower than its capability) for the target
devices.
To disable sync negotiation:
1. Power off the system and reboot into DOS using the SYSUTIL diskette.
2. From the SYSUTIL main menu, select SCSI Select Utility.
3. From the Options box, select Configure/View Host Adapter Settings.
4. Select the SCSI Device Configuration option.
5. Change the Initiate Sync Negotiation values for all the attached SCSI devices
(represented by their SCSI ID number) to no.
6. Set the Maximum Sync Transfer Rate values for the devices to the desired settings.
If changing these settings to extend cable lengths or add more devices, set Ultra SCSI
devices to 10.0 or less.
NOTE The Advanced Configuration Option allows you to disable the Ultra SCSI controller. When
Ultra SCSI is enabled, the available sync rates are 20, 16, 13.4, 10. When Ultra SCSI is
disabled then 10, 8, 6.7, 5 are available.
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