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This article was written by Karlie Beil, Customer Marketing Specialist.\u00a0<\/p><\/div><\/div><\/div><\/div><\/div><\/section>

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The 2022 IT Salary & Skills Survey is now open, and you can participate!<\/strong> <\/span><\/p>

This survey is one of the largest studies of IT salary, skills, and certifications. It\u2019s the backbone of Skillsoft\u2019s annual IT Skills and Salary Report, which shares detailed insights on skills and certifications, compensation, skills gaps and challenges, and more for IT professionals at every stage of their career.<\/span><\/p>

The survey typically takes 10-15 minutes to complete. You can bookmark your progress and pick up where you left off within one week of starting the survey. It\u2019s also completely anonymous. Skillsoft doesn\u2019t sell the data or share it with others.\u00a0<\/p>

Participating in the survey is a great way to share how Nutanix certification and training has impacted your career. <\/span>Plus, anyone who completes the survey can enter to win a $100 gift card! <\/em><\/p>

Take the survey today!<\/strong><\/a><\/h3>

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解决了

磁盘驱动性能

Stevecoops
UserLevel 2
徽章 +7

你好，

我有三个相同的节点（基本的联想服务器），但是与其他节点相比，一个节点的性能非常缓慢。磁盘在这三个方面并不相同。我想知道是否有人有任何想法可能导致绩效问题：

首先，HDD是两个“良好”节点中的4TB，而“较慢”的节点是2TB。我不希望这会导致性能问题，只是整体容量会受到限制吗？公平地说，2TB是WD“绿色”，4TB是WD“红色”驱动器。

其次，“较慢”的主机具有三星Pro 840 256GB SSD，Prism报告的延迟频率通常比HDD高！请参阅下图

他们在这种环境中以贫穷而闻名吗？我并不是真的在强调他们。有没有好的日志来查看性能问题？我可以看到HDD活动灯在较慢的主机上永久存在。

干杯，

史蒂夫

图标

最好的答案Stevecoops2021年6月4日，12：36

Forgot to update this post - after a couple of days this problem went away. Seems a common thing on some Samsung SSDs that they\u2019re slow for a while after a format.<\/p>","className":"post__content__best_answer"}">
查看原件
    Hi,<\/p>

    I have three identical nodes (basic Lenovo servers) but one performs really slowly compared to the others. The disks aren\u2019t the same across all three though. I wonder if anyone has any ideas which difference might be causing the performance issues:<\/p>

    \u00a0<\/p>

    Firstly the HDDs are 4TB in the two \u2018good\u2019 nodes and 2TB in the \u2018slower\u2019 one. I wouldn\u2019t expect that to cause performance issues, just overall capacity will be limited? To be fair the 2TB is a WD \u2018green\u2019 and the 4TBs are WD \u2018red\u2019 drives.<\/p>

    \u00a0<\/p>

    Secondly the \u2018slower\u2019 host has a Samsung Pro 840 256GB SSD which Prism reports as often having a higher latency than the HDDs! See the image below<\/p>

    \u00a0<\/p>

    \"//www.jhbzcj.com/next/how-it-works-22/\"<\/figure>

    \u00a0<\/p>

    Are they known for being poor in this kind of environment? I\u2019m not really stressing them. Any good logs to see performance issues? I can see the HDD activity light is permanently on on the slower host.<\/p>

    \u00a0<\/p>

    Cheers,<\/p>

    Steve<\/p>","quoteUsername":"SteveCoops","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

    该主题已关闭以供评论

    3个答复

    p
    UserLevel 6
    徽章 +16

    这是关于磁盘表演的很好的文章：https://next.nutanix.com/how-it-works-22/disk-i-i-o-latency-on-a-nutanix-cluster-38349

    Stevecoops
    UserLevel 2
    徽章 +7

    忘了更新此帖子 - 几天后，这个问题消失了。在某些三星SSD上似乎是一件常见的事情，它们在格式后暂时放慢速度。

    Forgot to update this post - after a couple of days this problem went away. Seems a common thing on some Samsung SSDs that they\u2019re slow for a while after a format.<\/p>","quoteUsername":"SteveCoops","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
    p
    UserLevel 6
    徽章 +16

    好的，感谢您清理一切。祝你好运！

    Ok thanks for clearing things up. Good luck!<\/p>","quoteUsername":"Primzy","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
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