Site Preparation Guide, Fifth Edition - HP Integrity Superdome and HP 9000 Superdome

Appendix B

Configuration Guidelines

Strive always for a link load of 1.0 or less.

The lower the link load, the better off the system. If link loads begin to approach 2, bottlenecks may occur.

For a dual cabinet system, there are six equations covering each link:

1. Quad 0 talking to Quad 1 L1 = Q0*Q1/Qt/1

2. Quad 0 talking to Quad 2 L2 = Q0*Q2/Qt/1

3. Quad 0 talking to Quad 3 L3 = Q0*Q3/Qt/1

4. Quad 1 talking to Quad 2 L4 = Q1*Q2/Qt/1

5. Quad 1 talking to Quad 3 L5 = Q1*Q3/Qt/1

6. Quad 2 talking to Quad 3 L6 = Q2*Q3/Qt/1

I/O Chassis Allocation

For best high availability, I/O devices are connected to different I/O Bays to reduce single points of failure.

Rules dictate that the roots are selected first, then all other I/O are added.

I/O can connect anywhere, but tools will guide you to the best selection.