SCSI Connectors

ADAC Ultra2 S466 has two types of SCSI connectors:

∙a 68-pin high density internal connector and

∙a 68-pin external ultra-high-density connector.

Both connector types can be used for the SCSI channel.

SCSI Termination

ADAC Ultra2 S466 uses active termination on the SCSI bus conforming to Alternative 2 of the SCSI-2 specifications. Termination enable/disable is automatic through cable detection.

SCSI Firmware

The ADAC Ultra2 S466 firmware handles all RAID and SCSI command processing and also supports:

Feature

Disconnect/

Reconnect

Tagged Command Queuing

Scatter/Gather

Multi-threading

Stripe Size

Rebuild

Description

Optimizes SCSI Bus seek.

Multiple tags to improve random access

Multiple address/count pairs

Up to 255 simultaneous commands with elevator sorting and concatenation of requests per SCSI channel

Variable for all logical drives: 2 KB, 4 KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB.

Multiple rebuilds and consistency checks with user- definable priority.

Chapter 4 Features

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