Single Ended And Differential Scsi Buses; Maximum Cable Length For Scsi Standards - LSI MegaRAID Express 500 Hardware Manual

Single Ended and Differential SCSI Buses

The SCSI standard defines two electrical buses:
•
a single ended bus
•
low-voltage differential bus

Maximum Cable Length for SCSI Standards

Standard
SCSI I
Fast SCSI
Fast Wide SCSI
Ultra SCSI
Ultra SCSI
Wide Ultra SCSI
Wide Ultra SCSI
Wide Ultra SCSI
Ultra 2 SCSI
Ultra 2 SCSI
Wide Ultra 2 SCSI
Wide Ultra 2 SCSI
Ultra3 SCSI
Ultra3 SCSI
Wide Ultra3 SCSI
Wide Ultra3 SCSI
SCSI Bus Widths and Maximum Throughput
SCSI Standard
SCSI I
Fast SCSI
Fast Wide SCSI
Ultra SCSI
Wide Ultra SCSI
Ultra 2 SCSI
Wide Ultra 2 SCSI
Ultra3 SCSI
Wide Ultra3 SCSI
2 MegaRAID Express 500 Hardware Guide
Single ended LVD
6 m 12 m
6 m 12 m
6 m 12 m
1.5 m 12 m
3 m 12 m
12 m
1.5 m 12 m
3 m 12 m
25 m
12 m
25 m
12 m
25m
12m
25m
12m
SCSI Bus Width
8 bits
8 bits
16 bits
8 bits
16 bits
8 bits
16 bits
8 bits
16 bits
Maximum Number of
Drives
7
7
15
7
3
15
7
3
1
7
1
15
1
7
1
15
SCSI Throughput
5 MB/s
10 MB/s
20 MB/s
20 MB/s
40 MB/s
40 MB/s
80 MB/s
80 MB/s
160 MB/s