dmidecode 显示的 RAM 插槽比可用的多吗?

dmidecode 显示的 RAM 插槽比可用的多吗?

我的服务器中有一些出现故障的 RAM,我运行了 dmidecode 来查明需要用哪种类型的 RAM 来替换它。

服务器有 6 个 RAM 插槽,其中 4 个正在使用中。当我运行 dmidecode 时,我得到了以下结果。

dmidecode 2.10
SMBIOS 2.4 present.

Handle 0x001F, DMI type 17, 27 bytes
Memory Device
        Array Handle: 0x001E
        Error Information Handle: No Error
        Total Width: 72 bits
        Data Width: 64 bits
        Size: 2048 MB
        Form Factor: DIMM
        Set: 1
        Locator: JXXX
        Bank Locator: DIMM 00
        Type: DDR2
        Type Detail: Synchronous
        Speed: 667 MHz
        Manufacturer: Not Specified
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Part Number: Not Specified

Handle 0x0020, DMI type 17, 27 bytes
Memory Device
        Array Handle: 0x001E
        Error Information Handle: No Error
        Total Width: 72 bits
        Data Width: 64 bits
        Size: 2048 MB
        Form Factor: DIMM
        Set: 1
        Locator: JXXX
        Bank Locator: DIMM 01
        Type: DDR2
        Type Detail: Synchronous
        Speed: 667 MHz
        Manufacturer: Not Specified
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Part Number: Not Specified

Handle 0x0021, DMI type 17, 27 bytes
Memory Device
        Array Handle: 0x001E
        Error Information Handle: No Error
        Total Width: Unknown
        Data Width: Unknown
        Size: No Module Installed
        Form Factor: DIMM
        Set: 1
        Locator: JXXX
        Bank Locator: DIMM 02
        Type: DDR2
        Type Detail: Synchronous
        Speed: 667 MHz
        Manufacturer: Not Specified
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Part Number: Not Specified

Handle 0x0022, DMI type 17, 27 bytes
Memory Device
        Array Handle: 0x001E
        Error Information Handle: No Error
        Total Width: Unknown
        Data Width: Unknown
        Size: No Module Installed
        Form Factor: DIMM
        Set: 1
        Locator: JXXX
        Bank Locator: DIMM 03
        Type: DDR2
        Type Detail: Synchronous
        Speed: 667 MHz
        Manufacturer: Not Specified
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Part Number: Not Specified

Handle 0x0023, DMI type 17, 27 bytes
Memory Device
        Array Handle: 0x001E
        Error Information Handle: No Error
        Total Width: 72 bits
        Data Width: 64 bits
        Size: 2048 MB
        Form Factor: DIMM
        Set: 1
        Locator: JXXX
        Bank Locator: DIMM 10
        Type: DDR2
        Type Detail: Synchronous
        Speed: 667 MHz
        Manufacturer: Not Specified
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Part Number: Not Specified

Handle 0x0024, DMI type 17, 27 bytes
Memory Device
        Array Handle: 0x001E
        Error Information Handle: No Error
        Total Width: 72 bits
        Data Width: 64 bits
        Size: 2048 MB
        Form Factor: DIMM
        Set: 1
        Locator: JXXX
        Bank Locator: DIMM 11
        Type: DDR2
        Type Detail: Synchronous
        Speed: 667 MHz
        Manufacturer: Not Specified
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Part Number: Not Specified

Handle 0x0025, DMI type 17, 27 bytes
Memory Device
        Array Handle: 0x001E
        Error Information Handle: No Error
        Total Width: Unknown
        Data Width: Unknown
        Size: No Module Installed
        Form Factor: DIMM
        Set: 1
        Locator: JXXX
        Bank Locator: DIMM 12
        Type: DDR2
        Type Detail: Synchronous
        Speed: 667 MHz
        Manufacturer: Not Specified
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Part Number: Not Specified

Handle 0x0026, DMI type 17, 27 bytes
Memory Device
        Array Handle: 0x001E
        Error Information Handle: No Error
        Total Width: Unknown
        Data Width: Unknown
        Size: No Module Installed
        Form Factor: DIMM
        Set: 1
        Locator: JXXX
        Bank Locator: DIMM 13
        Type: DDR2
        Type Detail: Synchronous
        Speed: 667 MHz
        Manufacturer: Not Specified
        Serial Number: Not Specified
        Asset Tag: Not Specified
        Part Number: Not Specified

有人知道为什么它会显示 8 个插槽,其中 4 个是空的,而不是 6 个插槽,其中 2 个是空的吗?此外,根据我的记录和其他工具,服务器目前有 16Gb,而不是 8Gb。

grep MemTotal /proc/meminfo
MemTotal:     16435808 kB

主板是Tyan S5372-LC,运行CentOS 5.4 x64。

另外,我的错误日志显示银行 6 中存在错误。有没有办法通过 dmidecode 确定银行 6 位于哪个插槽中?

抱歉,我现在无法发表评论,但银行 6 错误的消息是:

EDAC MC0: CE row 0, channel 0, label "": (Branch=0 DRAM-Bank=6 RDWR=Read RAS=1755 CAS=2492, CE Err=0x2000 (Correctable Non-Mirrored Demand Data ECC))

答案1

芯片组支持 8 个内存插槽。可能有 8 个实际 DIMM 插槽,但只有 6 个已连接。主板制造商本可以在主板上安装 8 个插槽,但他们选择不这样做。

什么说“Bank 6”有错误?某种服务器管理控制台?其中一个插槽可能在主板上标记为 DIMM06 - 我会检查一下。

至于尺寸差异,您很可能确实安装了 4GB DIMM,但 BIOS 或 DMI 表中的错误将它们报告为仅有 2GB DIMM。

底线:不要相信 dmidecode,它没有给你足够的信息。需要进行目视检查。

(或者,检查泰安的网站

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