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  3. 假设有256GB RAM，但系统只显示220GB
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假设有256GB RAM，但系统只显示220GB

刚刚添加了一个额外的Xeon四核E5-2603v2 CPU到我的HP DL360p Gen 8和16 * 16GB的内存。 free -g但是只显示220GB： 

 # free -g total used free shared buff/cache available Mem: 220 4 214 0 1 215 Swap: 0 0 0

根据HP快速规格第54页插入模块。

lshw在下面确认我已经放置了所有16个模块： 

 1 2 4 5 8 9 11 12

题

所以最大的问题是，为什么我不能拥有256GB的RAM，当lshw可以看到所有的模块，并且它们按照正确的顺序排列？

链接到hpasmcli -s "SHOW DIMM"输出。 http://pastebin.com/28mdQV2D 

  *-memory:0 description: System Memory physical id: 1000 slot: System board or motherboard *-bank:0 description: DIMM DDR3 Synchronous 1866 MHz (0.5 ns) product: 712383-081 vendor: HP physical id: 0 slot: PROC 1 DIMM 1 size: 16GiB width: 64 bits clock: 1866MHz (0.5ns) *-bank:1 description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns) product: NOT AVAILABLE vendor: UNKNOWN physical id: 1 slot: PROC 1 DIMM 2 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:2 description: DIMM DDR3 Synchronous [empty] product: NOT AVAILABLE vendor: UNKNOWN physical id: 2 slot: PROC 1 DIMM 3 width: 64 bits *-bank:3 description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns) product: NOT AVAILABLE vendor: UNKNOWN physical id: 3 slot: PROC 1 DIMM 4 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:4 description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns) product: NOT AVAILABLE vendor: UNKNOWN physical id: 4 slot: PROC 1 DIMM 5 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:5 description: DIMM DDR3 Synchronous [empty] product: NOT AVAILABLE vendor: UNKNOWN physical id: 5 slot: PROC 1 DIMM 6 width: 64 bits *-bank:6 description: DIMM DDR3 Synchronous [empty] product: NOT AVAILABLE vendor: UNKNOWN physical id: 6 slot: PROC 1 DIMM 7 width: 64 bits *-bank:7 description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns) product: NOT AVAILABLE vendor: UNKNOWN physical id: 7 slot: PROC 1 DIMM 8 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:8 description: DIMM DDR3 Synchronous 1866 MHz (0.5 ns) product: 712383-081 vendor: HP physical id: 8 slot: PROC 1 DIMM 9 size: 16GiB width: 64 bits clock: 1866MHz (0.5ns) *-bank:9 description: DIMM DDR3 Synchronous [empty] product: NOT AVAILABLE vendor: UNKNOWN physical id: 9 slot: PROC 1 DIMM 10 width: 64 bits *-bank:10 description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns) product: NOT AVAILABLE vendor: UNKNOWN physical id: a slot: PROC 1 DIMM 11 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:11 description: DIMM DDR3 Synchronous 1866 MHz (0.5 ns) product: 712383-081 vendor: HP physical id: b slot: PROC 1 DIMM 12 size: 16GiB width: 64 bits clock: 1866MHz (0.5ns) *-memory:1 description: System Memory physical id: 1001 slot: System board or motherboard *-bank:0 description: DIMM DDR3 Synchronous 1866 MHz (0.5 ns) product: 712383-081 vendor: HP physical id: 0 slot: PROC 2 DIMM 1 size: 16GiB width: 64 bits clock: 1866MHz (0.5ns) *-bank:1 description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns) product: NOT AVAILABLE vendor: UNKNOWN physical id: 1 slot: PROC 2 DIMM 2 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:2 description: DIMM DDR3 Synchronous [empty] product: NOT AVAILABLE vendor: UNKNOWN physical id: 2 slot: PROC 2 DIMM 3 width: 64 bits *-bank:3 description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns) product: NOT AVAILABLE vendor: UNKNOWN physical id: 3 slot: PROC 2 DIMM 4 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:4 description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns) product: NOT AVAILABLE vendor: UNKNOWN physical id: 4 slot: PROC 2 DIMM 5 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:5 description: DIMM DDR3 Synchronous [empty] product: NOT AVAILABLE vendor: UNKNOWN physical id: 5 slot: PROC 2 DIMM 6 width: 64 bits *-bank:6 description: DIMM DDR3 Synchronous [empty] product: NOT AVAILABLE vendor: UNKNOWN physical id: 6 slot: PROC 2 DIMM 7 width: 64 bits *-bank:7 description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns) product: NOT AVAILABLE vendor: UNKNOWN physical id: 7 slot: PROC 2 DIMM 8 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:8 description: DIMM DDR3 Synchronous 1866 MHz (0.5 ns) product: 712383-081 vendor: HP physical id: 8 slot: PROC 2 DIMM 9 size: 16GiB width: 64 bits clock: 1866MHz (0.5ns) *-bank:9 description: DIMM DDR3 Synchronous [empty] product: NOT AVAILABLE vendor: UNKNOWN physical id: 9 slot: PROC 2 DIMM 10 width: 64 bits *-bank:10 description: DIMM DDR3 Synchronous 1600 MHz (0.6 ns) product: NOT AVAILABLE vendor: UNKNOWN physical id: a slot: PROC 2 DIMM 11 size: 16GiB width: 64 bits clock: 1600MHz (0.6ns) *-bank:11 description: DIMM DDR3 Synchronous 1866 MHz (0.5 ns) product: 712383-081 vendor: HP physical id: b slot: PROC 2 DIMM 12 size: 16GiB width: 64 bits clock: 1866MHz (0.5ns)

这是具有健康状态LED的HP ProLiant DL380 Gen9服务器的前面板。 如果他们中的任何一个都不是绿色的，你就有问题。

在这里输入图像说明

这显示您的DIMM和模块的健康。 

 hpasmcli -s "SHOW DIMM"

这将显示您的系统的集成pipe理日志，并具有服务器发生事件的时间戳logging。 

 hplog -v

把这些放在一起看看你的服务器的状态。 如果您的DIMM不健康，应重新安装并重新testing，或在保修期内完全更换。 您的系统仍在制造商保修范围内，因此您可以在一个工作日内更换。