LSI Ultra320 - Manual (Page 34)

3-4 Ultra320 SCSI Host Adapter Characteristics
Version 2.1 Copyright © 2002-2003 by LSI Logic Corporation. All rights reserved.
3.1.2 LSI21320 Dual Channel Host Adapters
The LSI Logic LSI21320 and LSI21320-R are dual channel Ultra320
SCSI to PCI-X host adapters that provide two Ultra320 SCSI channels.
The SCSI Channel A interface is made through connectors J2 and J4.
The SCSI Channel B interface is made through connector J3. See
Figure 3.3 for details.
Features of the LSI21320 host adapters are
•
two independent Ultra320 SCSI channels
•
three SCSI connectors:
– one external 68-pin high density connector
– two internal 68-pin high density connectors
•
LVD/SE termination
•
LSI Logic Integrated Mirroring (IM) technology for boot volume and
operating system protection (IM is for the LSI21320-R only)
•
Fusion-MPT architecture
Details of the LSI21320 and LSI21320-R host adapters are
•
J1: PCI and PCI-X, 64-bit, universal type board edge connector
•
J2: 68-pin high density cable right-angle external connector
•
J3 and J4: 68-pin high density right-angle internal connectors
•
J6: 4-pin low density unshrouded right-angle LED connector
•
Subsystem Vendor ID: 0x1000
•
Subsystem ID: 0x1040
During system initialization, the system loads the ID numbers into the
Subsystem Vendor ID and Subsystem ID registers of the embedded
SCSI controller.
Figure 3.3 illustrates the LSI21320 or LSI2120-R host adapter board.