Packard Bell ST8000, 5800 manual Ultra Wide Scsi Mode, Dual Bus Cabinet

Note: Shielded data cables, such as those provided with the subsystem, must be used to prevent radio frequency interference. It is recommended that you use the cables provided with your system. These cables have been tested and meet stringent guidelines set forth by SCSI-3 ANSI specifications.

Ultra Wide SCSI Mode

Several possible configurations exist for the DEU in Ultra Wide SCSI mode. However this manual will discuss the two possible configurations using the I/O Interface card in Ultra Wide SCSI mode: dual-bus module in a single cabinet and single-bus module in a single cabinet. Refer to the Appendix D when using the Ultra Extender card.

Note: When configuring a dual-bus cabinet, both channels of the Host Controller are connected to each bank of drives through each channel on the I/O Interface card. When configuring the single-bus cabinet, one channel of the Host Controller connects both banks of drives only through the right or upper channel (Channel 1) on the I/O Interface card.

Dual - Bus Cabinet

This configuration provides two separate SCSI bus connections to the drives.

From the front, the drives slots are divided into two banks. The left or upper four front drive slots, which are connected to “Channel 1” on the I/O Interface card, and the right or lower four front drive slots are connected to “Channel 0” on the I/O Interface card.

The SCSI IDs of the drives are set by SAF-TE card defaults to IDs 0, 1, 2, and 4, from the front beginning with the drive located on the right or lower slot of each bank. The SCSI IDs can be manually changed from the OCP, if required. Both banks of drives will use the same sequence of SCSI ID numbers when the Dual-Bus module is installed.

Note: SCSI ID 3 is reserved for the SAF-TE card processor.

Caution: Ensure that the power switch is in the OFF

(O)position for both the host system and the DEU subsystem before connecting any cables.

PRINTER NOTE: Page size 9” x 9.25”. Align this page to top, right hand corner. Back box bleeds off top and right edge. Left side of page extends to 9.25 inches.