Lsi21320 Dual Channel Host Adapters - LSI 320 User Manual

3.1.2 LSI21320 Dual Channel Host Adapters

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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 un-shrouded 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.
Ultra320 SCSI Host Adapter Board Characteristics
Rev. 2.0 Copyright © 2002 by LSI Logic Corporation. All rights reserved.