How do I know if my SSD Drive supports TRIM?
- by Omar Shahine
Windows 7 has support for the TRIM command which should help ensure that the performance of an SSD drive remains good through it's life.
How can you tell if a given SSD drive supports TRIM?
See here for a description of TRIM.
Also the following from a Microsoft presentation:
Microsoft implementation of “Trim” feature is supported in Windows 7
NTFS will send down delete notification to the device supporting “trim”
File system operations: Format, Delete, Truncate, Compression
OS internal processes: e.g., Snapshot, Volume Manager
Three optimization opportunities for the device
Enhancing device wear leveling by eliminating merge operation for all deleted data blocks
Making early garbage collection possible for fast write
Keeping device’s unused storage area as much as possible; more room for device wear leveling.