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在服务器中布置内存模块

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在服务器中布置内存模块

这听起来可能有点傻。然而，当客户被要求为 DL 180 G6 服务器安装 36 G RAM 时，他的顾问建议客户选择 6 x 2GB 内存和 6x4 GB 内存的组合。我查阅了手册，想找到任何合理的理由，但一无所获。尝试谷歌搜索，没有找到答案。

HP 的内存模块定价方式是，如果客户选择 4G x9，最终可以节省约 150 美元。是否有任何证据表明使用偶数个内存模块可以提供更好的性能，或者填充的内存组可以提高性能？听起来很不合逻辑

使用的处理器是 Intel Xeon 5620

答案1

您不能将 9 个 DIMM 拆分到两个 CPU 上。要充分利用 DDR3 DIMM，每个 CPU 应安装三个 DIMM。如果记忆力不错，DL180 有 12 个内存插槽，每个 CPU 插槽分配六个。

答案2

DL180 G6 服务器的内存安装指南在此处发布： http://h18000.www1.hp.com/products/quickspecs/13248_na/13248_na.HTML#Memory

下面总结了一些 DIMM 安装指南：

For servers with twelve (12) memory slots
There are three (3) channels per processor; six (6) channels per server
There are two (2) DIMM slots for each memory channel; twelve (12) total slots
Memory channel 1 consists of the two (2) DIMMs that are closest to the processor
Memory channel 3 consists of the two (2) DIMMs that are furthest from the processor
DIMM slots that are white should be populated first
Do not mix Unbuffered memory (UDIMMs) with Registered memory (RDIMMs)
Do not install DIMMs if the corresponding processor is not installed
If only one processor is installed in a 2CPU system, only half of the DIMM slots are available
To maximize performance, balance the total memory capacity between all installed processors
It is not required, but it is recommended to load the channels similarly if possible
If any Quad rank DIMMs are installed, all channels are limited to only 2 DIMMs per channel.
You can only install two quad-rank DIMMs per channel
You can install two UDIMMs per channel; if available, the third slot in the channel must remain empty
Populate DIMMs from heaviest load (quad-rank) to lightest load (single-rank) within a channel
Heaviest load (DIMM with most ranks) within a channel goes furthest from the chipset
Low Voltage DIMMs can only be used with Intel Xeon 5600 series processors.

另请参阅：如何为我的 ProLiant DL320 G6 服务器安装内存？

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