软 raid 后的硬盘读写状况,仅在资源监视器开启后在任务管理器中可见 - V2EX
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xuangoer666
V2EX    Windows

软 raid 后的硬盘读写状况,仅在资源监视器开启后在任务管理器中可见

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  •   xuangoer666 187 天前 via Android 1320 次点击
    这是一个创建于 187 天前的主题,其中的信息可能已经有所发展或是发生改变。

    Windows Server 2025 24H2

    如果不开启资源监视器,任务管理器中硬盘各项参数均为 0 ,仅开启资源监视器后可正常显示

    bug or feature ?

    6 条回复    2025-04-29 14:23:07 +08:00
    ar16
        1
    ar16  
       187 天前
    同问,winserver 25 datacenter 24H2
    没做 raid ,全是直连的硬盘和 op 一样症状
    vibbow
        2
    vibbow  
       187 天前   1
    这是 feature

    NOTE The Disk counter has been removed from the Performance tab in Windows Server 2012. This is because there is significant performance impact to collect Disk metrics on a Server due to the overhead Task Manager may cause in querying each Disk IO for each process/thread on individual disk.
    ar16
        3
    ar16  
       187 天前
    @vibbow 感谢,顺藤摸瓜查到了怎么开启:
    prints: Both Logical and Physical Disk Performance counters on this system are automatically enabled on demand. For legacy applications using IOCTL_DISK_PERFORMANCE to retrieve raw counters, you can use -Y or -N to forcibly enable or disable. No restart is required.
    David Balaic
    CommentedFeb 1, 2023 at 9:56
    ar16
        4
    ar16  
       187 天前
    PrinceofInj
        5
    PrinceofInj  
       187 天前
    这个有些年头了,微软当年的说法是加上之后性能会有问题。所以一直都是在性能监视器里面查看。但是那个地方有个坑爹的之处就是读写速度是个平均值,没有瞬时值。
    gvdlmjwje
        6
    gvdlmjwje  
       175 天前
    我给几台虚拟机开了 diskperf -y ,这个性能影响大吗
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