PowerEdge：在 RAID 模式下，PERC9 控制器上是否支持 TRIM
Summary: 此问答文章详细介绍了 PERC9 与 TRIM 命令的兼容性。
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Instructions
TRIM 命令（在 ATA 命令集中称为“TRIM”，在 SCSI 命令集中称为 UNMAP）允许操作系统通知固态硬盘 (SSD) 哪些数据块不再被使用且可在内部进行擦除。修整使 SSD 能够更高效地处理垃圾收集，否则这会减慢未来对所涉及数据块的写入作。
适用于 SSD 的 TRIM 列为 PERC 系列的一项功能。有客户反映，仅在 HBA 模式下支持 TRIM，在 RAID 模式下则不支持。
从 2017 年 1 月开始，在大多数基于硬件的 RAID 技术中都不支持实施 TRIM 命令。但是，软件 RAID 实施通常包括对 TRIM 的支持。此外，仅直通 SSD 上支持 TRIM 功能。要了解如何在直通 SSD 上执行 TRIM，请参阅 S130 User’s Guide（S130 用户指南）。
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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