Sep 14 2010, 09:03 PM, updated 15y ago
The TRIM command has been designed to counter the performance drops of Solid State Drives over time. TRIM basically allows the operating system to notify the SSD about data blocks that are no longer in use so that they can be wiped.
Before TRIM, SSDs degraded in performance over time due to the way they handle write operations. Some manufacturers countered this with reset tools, which had to be run regularly to keep the performance at an acceptable level. Finally, some added garbage collection to the controller. This basically meant that the data on the drive would be defragmented, or that the TRIM command would be issued based on the findings of the garbage collection.
Now, the difficulty with TRIM is that it is only supported by Windows 7, Windows Server 2008 R2 and Linux at the moment. Users who do not run those operating systems do not have access to TRIM.
Windows users need to make sure that TRIM is working properly, especially if they notice that the performance of the Solid State Drive seems to drop significantly over time.
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