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解决了

磁盘驱动性能

  • 2021年4月29日
  • 3个答复
  • 330次观看

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”的节点为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”的主机有一个三星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"}">
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3个答复

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

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。

UserLevel 6
徽章 +16

好的,感谢您清理一切。祝你好运!

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