Best Practices for Tuning Microsoft SQL Server on the HP ProLiant DL980

Technical white paper | Best Practices for Tuning Microsoft SQL Server on the HP ProLiant DL980
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Card placement: Understanding processor enumeration and I/O slots
The following diagram illustrates the physical layout of I/O slot locations and other components, relative to the DL980
processor boards.
Figure 1. I/O slots vs. processor boards
Embedded adapters (like network card NC375i, video, and so on) are connected to processors 0 (zero) and 1.
Figure 1, when used in combination with Table 1 (page 5), should help you determine the best location for your adapters
according to each card’s characteristics (such as the number of lanes), with the ultimate goal of distributing the load equally
across all processors.
Note
Table 1 describes slot characteristics using HP’s “DL580 G7 PCI Express Kit” (HP Ref: 588137-B2, called “SubIO” in this
document) and HP’s “DL980 LP PCIe I/O Expansion Module” (HP Ref: AM434A, called “LPIO” in this document). The last
column only applies when using the optional “DL580 G7 PCI-X Combo Express Kit (HP Ref: 588139-B21) for the SubIO
(instead of 588137-B2).