pve 磁盘写入很高,求帮助! - V2EX
sparkssssssss

pve 磁盘写入很高,求帮助!

  •  
  •   sparkssssssss May 31, 2025 1616 views
    This topic created in 360 days ago, the information mentioned may be changed or developed.
    SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 33 Celsius Available Spare: 100% Available Spare Threshold: 10% Percentage Used: 0% Data Units Read: 942,409 [482 GB] Data Units Written: 1,494,231 [765 GB] Host Read Commands: 11,254,531 Host Write Commands: 33,710,969 Controller Busy Time: 1,257 Power Cycles: 98 Power On Hors: 550 Unsafe Shutdowns: 18 Media and Data Integrity Errors: 0 Error Information Log Entries: 0 Warning Comp. Temperature Time: 0 Critical Comp. Temperature Time: 0 2025-05-31 SMART/Health Information (NVMe Log 0x02) Critical Warning: 0x00 Temperature: 35 Celsius Available Spare: 100% Available Spare Threshold: 10% Percentage Used: 1% Data Units Read: 1,332,881 [682 GB] Data Units Written: 5,833,975 [2.98 TB] Host Read Commands: 14,934,034 Host Write Commands: 223,420,452 Controller Busy Time: 4,397 Power Cycles: 98 Power On Hours: 1,603 Unsafe Shutdowns: 18 Media and Data Integrity Errors: 0 Error Information Log Entries: 0 Warning Comp. Temperature Time: 0 Critical Comp. Temperature Time: 0 

    pve 起了两个 debian(server 版本),一个虚拟化,一个 lxc,上面就跑几个脚本,和部分应用(无头 chrome 访问写网站),以前都是泡在 N1 上,后来有了虚拟化,迁移过来的,都是没啥大 io 的操作,什么网络代理,之类的小程序,没有下载 但是不知道为什么会有这么高的写入,

    iotop 查看了一小段时间,期间也没看到有什么大的 io,就是有个 mysql 几十秒左右会有一次刷写日志的操作吧,io 瞬时在 10 多 M/s,除此没看到有什么明显大的,
    http://cdnjson.com/image/S7jLF2

    上面的信息是下午查的,现在又看了一眼,又涨了几十个 G.

    Data Units Read: 1,333,394 [682 GB]
    Data Units Written: 5,883,858 [3.01 TB]

    billlee
        1
    billlee  
       May 31, 2025
    先看看 iostat 吧,mysql 默认是每个事务 commit 都会 sync 的。你这 iotop 怎么连 iops 都不显示?
    phrack
        2
    phrack  
       May 31, 2025
    这点写入基本不用担心,之前也遇到过,一天几十 TB 的写入,那种才是异常,一天 100GB 写入,如果有各种程序跑着挺正常的。

    如果确实想减少,可以 Google 一下 chrome cache tmpfs ,多半是 chrome cache 的问题,放到 tmpfs 就行了。
    sparkssssssss
        4
    sparkssssssss  
    OP
       Jun 1, 2025
    @Dreax #3
    @phrack #2
    @billlee #1
    感谢指点,我目前感觉可能 chrome 的概率较大.顺便我也优化下服务.
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