万兆

    光网 万兆 多模光纤优选:
    单模模块便宜,而且单模模块可以跑在多模光纤上,但是多模不能跑在单模光纤上;
    家庭距离短,多模光纤能够保证最大的兼容性。

    光猫一般使用 sc 的接口,万兆光模块大多为 LC 接口。

    https://zhuanlan.zhihu.com/p/76400103?utm_id=0

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分形工艺R6

13 月前

有位置信息的一条报错[47716.772022] EDAC MC0: 1 CE ie31200 CE on mc#0csrow#1channel#0 (csrow:1 channel:0 page:0x0 offset:0x0 grain:8 syndrome:0x8)内存位置信息P0_Node0_Channel0_Dimm0 DIMMA1 18ADF4G72AZ-3G2BT P0_Node0_Channel1_Dimm1 DIMMB2 MTA18ASF4G72AZ-3G2BZ dmidecode -t memory | grep 'Locator' Locator: DIMMA1 Bank Locator: P0_Node0_Channel0_Dimm0 Locator: DIMMA2 Bank Locator: P0_Node0_Channel0_Dimm1 Locator: DIMMB1 Bank Locator: P0_Node0_Channel1_Dimm0 Locator: DIMMB2 Bank Locator: P0_Node0_Channel1_Dimm1错误信息➜ ~ grep "[0-9]" /sys/devices/system/edac/mc/mc0/rank*/dimm_ce_count /sys/devices/system/edac/mc/mc0/rank0/dimm_ce_count:0 /sys/devices/system/edac/mc/mc0/rank1/dimm_ce_count:0 /sys/devices/system/edac/mc/mc0/rank2/dimm_ce_count:1 /sys/devices/system/edac/mc/mc0/rank3/dimm_ce_count:0这里 rank 和上述的内存位置信息无法对应关系。查看该目录下的 dimm_locationls /sys/devices/system/edac/mc/mc0/rank2/ dimm_ce_count dimm_dev_type dimm_edac_mode dimm_label dimm_location dimm_mem_type dimm_ue_count power size uevent grep "[0-9]" /sys/devices/system/edac/mc/mc0/rank2/dimm_location csrow 1 channel 0可以看到和上面 mc#0csrow#1channel#0 能够对应上。继续核实位置信息➜ ~ grep "[0-9]" /sys/devices/system/edac/mc/mc0/rank*/dimm_location /sys/devices/system/edac/mc/mc0/rank0/dimm_location:csrow 0 channel 0 /sys/devices/system/edac/mc/mc0/rank1/dimm_location:csrow 0 channel 1 /sys/devices/system/edac/mc/mc0/rank2/dimm_location:csrow 1 channel 0 /sys/devices/system/edac/mc/mc0/rank3/dimm_location:csrow 1 channel 1这里可以确定出问题的内存条是 第二个内存通道的第一条出现了问题,但问题来了哪个是第二个内存通道?出问题的是B1吗?但是B1处没有内存条。