HP Integrity Superdome SX1000 User Guide, Sixth Edition - HP Integrity Superdo - Page 242

Configuration Configuration Guidelines Table A-2 HP Integrity Superdome SD32 Partition Configurations Table D-2 hp Integrity Superdome or hp 9000 Superdome SD32 Partition Configuration Number of Cells per partition Cabinet 0 - Cell Slots (Cells 0-7) Number of Partitions 01 2 3 4 5 67 1 A E C G B F DH8 2 A C A C B D BD4 2 E E1 3 AA A BBB 2 4 AA A A C C CC2 5 AA A A A1 6 AA A A A A1 7 AA A A A AA1 8 AA A A A A AA1 21 Figure D-1 hp Integrity Superdome or hp 9000 Superdome SD32 Quad 0 0 123 XBC 0 Backplane Etch 4*2/6/2=0.66x U-turn 4*2/6/2=0.66x Quad 1 4 567 XBC 4 XBC-XBC Link Load Equation A simple calculation can be made to evaluate whether or not a particular configuration will have bottlenecks. 1. The number of cells on one quad, Qx, that talk to another quad Qy 2. The total number of cells is Qt 3. The number of links between the two quads is L. (Always 1) 4. Link load is Qx*Qy/Qt/L. (Link load = 4*4/8/2 = 1). 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: 230 Appendix D