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Dell EMC PowerVault ME4 Series ストレージ システム 管理者ガイド

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TRIMとUNMAPコマンド

コマンド（ATAコマンド セットのTRIMとSCSIコマンド セットのUNMAP）により、オペレーティング システムは、使用中と見なされずに内部的に消去できるSSDのデータ ブロックに通知することができます。

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