Dell 610 Installing Scsi Devices, Scsi Configuration Guidelines, Scsi ID Numbers

NOTE: When using the Windows NT operating system with the FAT 16 file system, the primary partition for each hard- disk drive can be no larger than 2 gigabytes (GB). Extended partitions can be larger than 2 GB, but each logical drive within an extended partition must be no larger than 2 GB.

To partition and logically format your hard-disk drive, use the program(s) offered by your operating system.

Installing SCSI Devices

This section describes how to configure and install SCSI devices in your Dell Precision system.

SCSI Configuration Guidelines

Although SCSI devices are installed essentially the same way as other devices, their configuration requirements are different. For details on configuring your particular SCSI subsystem, refer to the documentation that came with your SCSI devices. The following subsections offer some general guidelines.

SCSI ID Numbers

Internal SCSI devices attached to the integrated Adaptec 7890 Ultra2/Wide low voltage differential (LVD) controller through the 68- pin primary SCSI connector on the system board must have a unique SCSI ID number from 0 to 15.

Externally accessible SCSI devices attached to the integrated Adaptec 7880 Ultra/Wide controller through the 50-pin Narrow SCSI connector on the system board must have a unique SCSI ID number from 0 to 7.

External SCSI devices connected to the integrated Adaptec 7880 Ultra/Wide controller through the 68-pin Ultra/Wide SCSI connector on the system back panel must have a unique SCSI ID number from 0 to15. This SCSI ID number cannot conflict with any SCSI ID number already assigned to a SCSI device connected to the 50-pin internal SCSI connector on the system board.

When SCSI devices are shipped from Dell, the default SCSI ID numbers for the primary and secondary controllers are assigned as follows:

Primary SCSI controller:

-The primary 7890 Ultra2/Wide LVD SCSI controller is configured through the computer's basic input/output system (BIOS) as SCSI ID 7.

-The first internal SCSI hard-disk drive is configured as SCSI ID 0. (The drive used to boot your system should always be configured as SCSI ID 0.)

Secondary SCSI controller:

-The secondary 7880 Ultra/Wide SCSI controller is configured through the computer's BIOS as SCSI ID 7.

-A SCSI CD-ROM drive is configured as SCSI ID 5.

-A SCSI tape drive or digital audio tape (DAT) drive (if installed) is configured as SCSI ID 6.

NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or that devices be attached to the cable in order by ID number.

SCSI devices installed by Dell are configured correctly during the manufacturing process. You do not need to set the SCSI ID for these SCSI devices.

If you attach additional optional SCSI devices, refer to the documentation that came with each device for information about setting the appropriate SCSI ID number.

CAUTION: Dell recommends that you use only SCSI cables purchased from Dell. SCSI cables purchased elsewhere are not guaranteed to work with Dell Precision 610 systems.