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vSAN 6.6.x をアップグレードすると、重複排除を有効にしたときに最初の起動時間が長くなる (52942)

Last Updated: 3/2/2018Categories: TroubleshootingTotal Views: 1Language:
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Symptoms

免責事項： これは英文の記事 Upgrading vSAN 6.6.x result in long initial boot time when deduplication is enabled (51484)  」の日本語訳です。記事はベストエフォートで翻訳を進めているため、ローカライズ化コンテンツは最新情報ではない可能性があります。最新情報は英語版の記事で参照してください。

vSAN 6.6.x にアップグレードした後、重複排除された vSAN クラスタを初めて起動するときに長い時間がかかる場合がある。

Purpose

この記事では、vSAN 6.6.x へのアップグレード後に、重複排除された vSAN クラスタの最初の起動に長い時間がかかる状況で予想される動作について説明します。

Cause

この問題は vSAN バージョン 6.6.x（ESXi 6.5 Update 1 または 6.5 EP 2）に対する拡張により、vSAN がディスクに格納されている圧縮関連の統計情報を完全に再作成する必要があるために発生します。これは、すべての個別のメタデータ ブロックを読み取る必要があるため起動プロセスが遅延するからです。

Impact / Risks

これは一度限りのプロセスで、圧縮メタデータを更新する必要があるため、アップグレード後の最初の起動にのみ影響します。
注：影響を受けるのは重複排除されたクラスタのみです。

Resolution

これは、vSAN 6.6.x にアップグレードするときに予想される動作です。

注：長い起動時間はこの環境のアップグレードの一環として計画できます。

この問題は、ESXi 6.5 パッチ リリース ESXi650-201712001 で解決されており、VMware Patch Downloads から入手できます。パッチのダウンロードの詳細については、「How to download patches in Customer Connect (1021623)」を参照してください。

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