解决了

对并发迁移的限制?

  • 2020年4月27日
  • 2回答
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徽章 ＋1

我的迁移团队在推动尽可能多的VM通过Move进行后期重启方面做得很好。我注意到，当我们有大约15-20个VM等待割接时，复制速度会变慢。

我检查了移动虚拟机的负载，并增加了cpu数量。复制进展顺利(25Gbit网络)，但现在我们只有2个种子流，19个种子流等待割接。我有其他4个VM在“播种数据”阶段，但还没有开始他们的副本。这是Move postgres数据库的瓶颈吗?

关于如何获得更多VM的并行复制，有什么想法吗?

谢谢,

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最佳答案大卫爱尔兰人2020年6月23日21:08

@BlakeRobertsNBL<\/user-mention>\u00a0 Here is what the move team had to say about limitations.<\/p>

\u00a0<\/p>

Move performs up to 16 disks migration in parallel. If it is from the single ESX host, then the limit is 8 disks in parallel.<\/p> <\/blockquote>

\u00a0<\/p>

Hope this helps.<\/p>","className":"post__content__best_answer"}">

查看原始
My migration team is doing a good job trying to push as many VM\u2019s through Move to stage reboots after-hours.\u00a0 I\u2019ve noticed that replication slows way down when we have about 15-20 VM\u2019s waiting for cutover.\u00a0<\/p>

I have checked the load on the Move VM and increased the amount of CPUs.\u00a0 Replication goes well (25Gbit network), but now we only have 2 seed streams going with 19 waiting to cutover.\u00a0 I have 4 other VM\u2019s that are in the \u201cseeding data\u201d phase, but haven\u2019t started their copies.\u00a0 Is this a bottleneck within the Move postgres database?<\/p>

Any ideas on how I can get more VM\u2019s copying in parallel?<\/p>

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

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2回答

大卫爱尔兰人
排名
徽章

很抱歉回复晚了——从个人经验来看，同时发生的并发迁移的数量似乎与您正在移动的数据量有关。当我是一个客户时(在nutanix之前的工作中)，我一次做了10次迁移，大约1-3 TB的数据没有任何问题。如果我有任何大型VM自己的10+ tbs，我将自己进行迁移，而不运行任何其他迁移。我会询问Move团队是否有指导方针，然后回复你。

David Teague, Nutanix技术营销工程师(ERA,Move)
Sorry for the late reply - From personal experience, the number of concurrent migrations that happen at the same time seems to be tied to the amount of data you are moving. I was doing 10 migrations at a time when I was a customer (at my job before nutanix) and it was around 1-3 TB of data without a problem. If I have any large VM\u2019s 10+ tbs on their own I would do that migration on its own without any other migrations running. I will ask the Move team if there is a guideline and get back to you.<\/p>","quoteUsername":"David Teague","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
大卫爱尔兰人
排名
徽章

@BlakeRobertsNBL以下是移动团队对局限性的看法。

Move可以并行执行多达16个磁盘的迁移。如果它来自单个ESX主机，那么限制是8个磁盘并行。

希望这个有帮助。

David Teague, Nutanix技术营销工程师(ERA,Move)
@BlakeRobertsNBL<\/user-mention>\u00a0 Here is what the move team had to say about limitations.<\/p>

\u00a0<\/p>

Move performs up to 16 disks migration in parallel. If it is from the single ESX host, then the limit is 8 disks in parallel.<\/p> <\/blockquote>

\u00a0<\/p>

Hope this helps.<\/p>","quoteUsername":"David Teague","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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