Scsi Bus - ATTO Technology UL3D Installation And Operation Manual

SCSI Bus

❖SCSI-3 connectors
❖
UL3S/UL3S-66 external: (1) 68-pin
VHDCI
❖
UL3S/UL3S-66 internal: (1) 68-pin
Wide
❖
UL3D/UL3D-66 external: (2) 68-pin
VHDCI
❖
UL3D/UL3D-66 internal: (2) 68-pin
Wide
❖Maximum Host PCI transfer rate
❖
32-bit/33MHz: 133 MB/sec.
❖
32-bit/66 Mhz: 266 MB/sec.
❖
64-bit/33 Mhz: 266 MB/sec.
❖
64-bit/66 Mhz: 532 MB/sec.
❖
Maximum SCSI transfer rate:
❖
Synchronous data rate (UL3D/UL3D-66):
60 MB/sec. per channel (Ultra3 mode)
❖Asynchronous data rate:12 MB/sec. per
channel (all models)
❖SCSI Interface: SCSI-1, SCSI-2, SCSI-3,
UltraSCSI, Ultra2SCSI, Ultra 160/m SCSI,
Ultra3 SCSI
❖Electrical Signals:single-ended, low
voltage differential
❖Extensive device support
❖
UL3D/UL3D-66: Up to 210 devices
when used with LUNs (Wide and
Narrow devices)
❖
UL3S/UL3S-66: Up to 210 devices
when used with LUNs (Wide and
Narrow devices)
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