PowerEdge: Is TRIM supported on PERC9 controller in RAID mode

Summary: This Question and Answer article details the compatibility of PERC9 with TRIM commands.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Instructions

A TRIM command, known as TRIM in the ATA command set, and UNMAP in the SCSI command set, allows an operating system to inform a solid-state drive (SSD) which blocks of data are no longer considered in use and can be wiped internally. Trimming enables the SSD to more efficiently handle garbage collection, which would otherwise slow future write operations to the involved blocks.

TRIM for SSDs is listed as a feature of the PERC family. There have been reports that TRIM is only supported in HBA mode and not in RAID mode.

 

As of January 2017, support for the TRIM command is not implemented in most hardware-based RAID technologies. However, software RAID implementations often do include support for TRIM. Furthermore the TRIM feature is supported only on the pass-through SSDs. To find out how to perform TRIM on pass through SSDs, please consult the S130 User's Guide.

Affected Products

PERC9/SAS HBAs

Products

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 ...
Article Properties
Article Number: 000179248
Article Type: How To
Last Modified: 17 Dec 2024
Version:  5
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