無料 · ネットワーク・IT インフラ
仮想化ホストのサイジング.
vCPU 対物理コア比、メモリ、予約リソース、N+1／N+2 冗長性から、仮想マシンに必要なハイパーバイザーホスト数を算出します。
Host
1–2 for databases and latency-sensitive loads, 3–6 for general servers, higher for light desktops.
1.0 = no overcommit, the safe default for production.
- Virtual machines
- 65
- vCPU (with growth)
- 230
- RAM (with growth)
- 960 GB
- Hosts for CPU
- 3
- Hosts for memory
- 3
- Usable storage needed
- 9.16 TB
- vCPU : core with all hosts running
- 1.92 : 1
- RAM used per host with one host down
- 64.5 %
- Sizing by allocation. Measure real usage (CPU ready time, memory active) with your hypervisor tools to refine the ratios.
- Per-core licensing (operating systems, databases, hypervisors) can make fewer, faster cores cheaper overall; check before choosing hosts.
- Storage excludes RAID or replication overhead; add that in the RAID or storage tool.
使い方: 仮想化ホストのサイジング
データを入力するかファイルを選び、設定を調整して結果を生成します。コピーやダウンロードの前に結果を確認してください。
制限と対応形式
入力内容はお使いの端末で処理されます。
英語の技術説明
Sizing by allocation, not measured usage. Licensing, NUMA placement and storage performance are not modelled. Everything is calculated in your browser; nothing is sent or probed on the network.
vCPU ÷ ratio gives physical cores; RAM ÷ overcommit gives memory; each is divided by the usable capacity of one host at the target utilisation, the larger count wins and spare hosts are added.
65 VMs with 184 vCPU and 768 GB RAM, plus 25 % growth, on 32-core / 512 GB hosts at 4:1 need 3 hosts plus 1 spare.