PowerEdge：在 RAID 模式下的 PERC9 控制器是否支援 TRIM
Summary: 本問答文章詳細說明 PERC9 與 TRIM 命令的相容性。
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Instructions
TRIM 命令在 ATA 命令集中稱為 TRIM，在 SCSI 命令集中稱為 UNMAP，它允許操作系統通知固態硬碟 （SSD） 哪些數據塊不再被視為正在使用中，並且可以在內部擦除。修整可讓固態硬碟更有效率地處理垃圾收集，否則未來會減慢對相關區塊的寫入作業。
適用於固態硬碟的 TRIM 被列為 PERC 系列的一項功能。有報告顯示，只有在 HBA 模式中才支援 TRIM，在 RAID 模式中不支援。
截至 2017 年 1 月，大多數基於硬體的 RAID 技術並未實現對 TRIM 命令的支援。但是，軟體 RAID 實現通常包含對 TRIM 的支援。此外，只有直通固態硬碟才支援 TRIM 功能。要瞭解如何在直通 SSD 上執行 TRIM，請參閱 S130 使用者指南。
Affected Products
PERC9/SAS HBAsProducts
PowerEdge C4130, Poweredge C4140, PowerEdge c6300, PowerEdge c6320, PowerEdge c6320p, PowerEdge C6400, PowerEdge C6420, Poweredge FC430, Poweredge FC630, PowerEdge FC640, Poweredge FC830, PowerEdge FD332, PowerEdge FM120x4 (for PE FX2/FX2s)
, PowerEdge M630, PowerEdge M630 (for PE VRTX), PowerEdge M640, PowerEdge M640 (for PE VRTX), PowerEdge M830, PowerEdge M830 (for PE VRTX), PowerEdge MX5016s, PowerEdge MX740C, PowerEdge MX840C, PowerEdge R230, PowerEdge R240, PowerEdge R330, PowerEdge R340, PowerEdge R430, PowerEdge R440, PowerEdge R530, PowerEdge R530xd, PowerEdge R540, PowerEdge R630, PowerEdge R640, PowerEdge R6415, PowerEdge R730, PowerEdge R730xd, PowerEdge R740, PowerEdge R740XD, PowerEdge R740XD2, PowerEdge R7415, PowerEdge R7425, PowerEdge R830, PowerEdge R840, PowerEdge R930, PowerEdge R940, PowerEdge R940xa, PowerEdge T130, PowerEdge T140, PowerEdge T30, PowerEdge T330, PowerEdge T340, PowerEdge T40, PowerEdge T430, PowerEdge T440, PowerEdge T630, PowerEdge T640
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Article Properties
Article Number: 000179248
Article Type: How To
Last Modified: 17 Dec 2024
Version: 5
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