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AHV/CVインストール時のディスク選択

  • November 26, 2024
  • 8 replies
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  • Adventurer
  • 5 replies

はじめまして。
Nutanixの勉強を始めたてのものです。的外れな質問をしてしまうこともあるかもしれませんが、どうぞよろしくお願いいたします。
早速ですが、AHV/CVMのディスク構成に関して質問させていただきたいことがあります。

1. AHV/CVMのインストールディスクについて
Nutanix CE(AHV/CVM)をインストールする際に、[H][C][D]のディスクを選択すると思います。
これらの用途について、以下の理解でいるのですが正しいでしょうか?
・[H]・・・AHVのインストールディスク
・[C]・・・CVMのインストールディスク
・[D]・・・AHV上で仮想マシンやvolumeとして利用できるディスク(=ストレージプール)

2. SSD層/HDD層はどこから割り当てられる?
上記で相違ない場合、SSD層(ホットデータ層)/HDD層(コールドデータ層)は、各ノードの[D]から自動で判別され割り当てられるようになるのでしょうか?

3. [C]の用途について
[C]はCVMのインストールディスクとなる認識ですが、それにしては[C]の容量要件が多い気がしています。CVM単体でそこまで容量を利用するものなのでしょうか?

以上です。無知で申し訳ないのですがご教示いただけますと幸いです。

Best answer by JeroenTielen

No ;) But here is the classic interface: https://www.nutanixbible.com/classic

This will show the complete bible in 1 page and you can search easily. 

 

Edit: Maybe this will help ;) https://www.nutanixbible.com/2i-book-of-basics-drive-breakdown.html

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8 replies

JeroenTielen
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  • Vanguard
  • 1303 replies
  • November 26, 2024
  1. D is data. This where virtual machines are stored as well. 
  2. SSD tier is stored on the SSD’s ;) Yes this is done is each node and the cluster will do this automatically. Search for data tiering or curator in the nutanix bible. www.nutanixbible.com
  3. On the CVM disk there is just a little space reserved for the CVM. The rest will be used for data as well. 

  • Author
  • Adventurer
  • 5 replies
  • November 26, 2024
  1. D is data. This where virtual machines are stored as well. 

Thank you very much.
I understood that [D] is the data area (virtual machines and volumes).

 

  1. SSD tier is stored on the SSD’s ;) Yes this is done is each node and the cluster will do this automatically. Search for data tiering or curator in the nutanix bible. www.nutanixbible.com

Thank you very much.
I will also check the Nutanix Bible again.

 

  1. On the CVM disk there is just a little space reserved for the CVM. The rest will be used for data as well. 

I am additionally curious about this point.
You mentioned earlier that “[D] is a data area”, does that mean that “[C] is also part of the data area”?
Also, you said that SSD is a requirement for [C], but “even the free space in [C] will be a hot data layer”?


JeroenTielen
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  • Vanguard
  • 1303 replies
  • November 26, 2024

About ‘3’. Yes correct. 

 

So if your CVM disk is large. Then there will be a small part reserved for the CVM and the rest of the space is for data. 


  • Author
  • Adventurer
  • 5 replies
  • November 26, 2024

Thank you very much. I understand very well.
Is there a place where the information you answered is found, is it in the Nutanix Bible?


JeroenTielen
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  • Vanguard
  • 1303 replies
  • November 27, 2024

Nutanix Bible should cover everything. 


  • Author
  • Adventurer
  • 5 replies
  • November 27, 2024

Thank you.
But I'm sorry. I cannot find the relevant section. Can you give me the specific section?


JeroenTielen
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  • Vanguard
  • 1303 replies
  • Answer
  • November 27, 2024

No ;) But here is the classic interface: https://www.nutanixbible.com/classic

This will show the complete bible in 1 page and you can search easily. 

 

Edit: Maybe this will help ;) https://www.nutanixbible.com/2i-book-of-basics-drive-breakdown.html


  • Author
  • Adventurer
  • 5 replies
  • November 28, 2024

Thanks! Very helpful!
I will check the old documentation as well.
This question is closed.