May 2022
Intermediate
240 pages
6h 57m
Japanese
Content preview from 図解まるわかり AWSのしくみ
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78
Amazon EC2 にはさまざまなインスタンスタイプがあることをお伝え
しました。インスタンスのタイプとともに種類が豊富なのがサーバーOS
です。
EC2 でのサーバーOSの説明に入る前に、一般にサーバーOSといえば、
主に次の4つがあります。
●
Linux： OSSの代表的な存在、ディストリビューションによって違い
がある
●
Windows Server：マイクロソフトのサーバー用OS
●
UNIX系：LinuxのもとになったOS、サーバーのメーカー各社が提供
●
その他： メインフレームやスーパーコンピュータ専用、macOS、AI専
用など
企業でのシェアでいえば、まだまだオンプレミスも多いので、Windows
Serverが5割前後で、次いでLinux、UNIX系がそれぞれ2割前後とされて
いますが、Linuxのシェアが伸びています。
図 3-7 ではそれぞれの歴史も含めて整理していきます。
Amazon EC2で利用できるOS
AmazonEC2では、上記の中で、Linux、Windows Server、macOS、Deep
Learning専用などを提供しています。
具体的に細かく整理すると、図3-8のようになりますが、これらはトレ
ンドに合わせて増えています。
これらのサーバーOSは選択のミスがないように、3-6 で解説するAMI
でも最も目立つ場所に表示されています。
一般的なサーバーOS
3-4
サーバーのＯＳ
Linux、WindowsServer
79
Point
一般にサーバーOS と
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