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Ultra320 SCSI to PCI-X Host Adapters 3-5

Figure 3.3 LSI21320 or LSI21320-R Drawing

3.1.3 LSI22320 Dual Channel Host Adapters

The LSI Logic LSI22320 and LSI22320-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 J6.

The SCSI Channel B interface is made through connectors J3 and J4.

See Figure 3.4 for details.

Features of the LSI22320 and LSI22320-R host adapters are

• two independent Ultra320 SCSI channels

• four SCSI connectors:

– two external 68-pin very high density cable interconnect (VHDCI)

connectors

– 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 LSI22320-R only)

• Fusion-MPT architecture

J1 – PCI and PCI-X

LSI53C1030

Channel A

Ultra320 SCSI LVD/SE

Channel B

Ultra320 SCSI LVD/SE

J6 for

Channels

A and B

Channel A

Ultra320 SCSI LVD/SE

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LSI Ultra320 Manual do Utilizador Página 35