Sending;¬ DPT 2xx2/3222 Series EISA SCSI Adapter
¬

¬SCSI Devices

This EISA Bus device driver automatically detects the target adapter.

Supported Hardware: 

	PM2022 EISA SCSI Adapter
	PM2042W EISA Wide SCSI Adapter
	PM2122 EISA SCSI Adapter
	PM2142W EISA Wide SCSI Adapter
	PM3222 EISA SCSI Adapter

This driver supports the DPT 2xx2 series and the the 3222 EISA SCSI Host Adapter. 

Installing a DPT EISA SCSI Adapter

	Note:  You must install the DPT EISA SCSI adapter in your system before you configure the driver.  
	
1.	Refer to the "Smart Cache User's Manual" that comes with the adapter.  This manual contains information that you should read before installing the adapter.  
2. 	Run the system's ECU program to add the board to the system's BIOS configuration. 
3.   Be aware of the necessity of proper SCSI termination.  Refer to 
       the User's Manual and configure the host adapter accordingly using the system's ECU program.
4.   If you are using any external SCSI drives, you will need to limit the data rate on the SCSI bus using the system's ECU program.  Selecting "External Cable Detection" is usually sufficient to cover this case. 
5.	Install the DPT EISA SCSI Adapter in an EISA slot.
6. 	If you have attached a SX4000 module to the DPT host adapter in order to obtain multiple SCSI buses, and if your boot drive will be connected to the DPT host adapter, then the boot drive must be connected to the external SCSI connector, not to one of the internal SCSI bus connectors on the SX4000.

Configuring the DPT EISA SCSI Adapter Device Driver  

	Note: When installing an EISA Host Adapter, you must first install the board before configuring the driver.
	Note: See Configure's Help for general information on running the Configure Application.
	
1. 	After you have installed the adapter, log in as root, start Configure, and Click the SCSI icon at the top of Configure's Summary window.  If any string containing "DPT" is in the list of devices that appears in the window, and if a DPT SCSI Adapter adapter is already installed in your computer, select the driver's name, and click Remove.
2. 	If you're planning to use the DPT SCSI Adapter adapter in place of another adapter named in the list, select the other adapter's name, and click Remove. 
3.	Click Add in the window.  
4. 	In  the Add SCSI Devices panel that opens, select the radio button labeled "Show Drivers for Detected Devices."  Select "DPT 2xx2/3222 Series EISA SCSI Adapter" from the list, and click Add. 
	Note:  If the DPT driver does not show up in the list of  detected devices, this indicates a problem with the system setup.  You need to run the ECU program to ensure that the system BIOS knows about the board. 
5.	You have the option of selecting either level-triggered or edge-triggered interrupts.  The default is to use edge-triggered interrupts.  Using level triggered interrupts allows multiple boards to share an IRQ.  If you do this, use the system's ECU program to make sure the board is configured to use level-triggered interrupts. 
	Note: There is a bug in the Configure application which results in a panel which says "These settings are claimed by more than one device. You must resolve the conflicts before saving"  when you configure multiple EISA devices to share the same (level-triggered) IRQ.  Ignore this panel and proceed to save the configuration as usual. 
6.	Click Done, and then click Save. 
7.	Choose Quit from the Configure menu.

¬

See also

·	"Add a Device" in Configure's on-line help.

·	See NeXTanswer 1824 for general information on installing 
	and configuring device drivers. 

·	See NeXTanswer 1830 for an overview of this DPT device 
	driver.