Gateway ADAC Ultra2 S466, Hardware Manual

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Chapter 4 Features 37
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 Description
Disconnect/
Reconnect Optimizes SCSI Bus seek.
Tagged Command
Queuing Multiple tags to improve random access
Scatter/Gather Multiple address/count pairs
Multi-threading Up to 255 simultaneous commands with elevator sorting and
concatenation of requests per SCSI channel
Stripe Size Variable for all logical drives: 2 KB, 4 KB, 8 KB, 16 KB, 32
KB, 64 KB, or 128 KB.
Rebuild Multiple rebuilds and consistency checks with user-
definable priority.