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TRIM may not be Required
Any drive that uses the Sandforce SSD internal controller does not need TRIM support. It handles the same functionality inside the controller itself. The operating system does not need to support TRIM. So this means that OCZ and SSDs branded as OWC Mercury Extreme Pro do not require TRIM at all!
TRIM may not be Required
While it's true that the Sandforce controller has built in "garbage collection", it would require the controller to understand the filesystem that is being used on the drive. I have seen no evidence nor claims that the controller understands HFS+ (as opposed to NTFS/FAT.)
TRIM may not be Required
Correct. Being quite experienced with file systems, disk drivers and drives in general, I can confirm that a disk can't optimize for this fully without knowing which sectors / blocks on the disk are still in use and which not. And the OS tells the disk which blocks are free by using said trim command. |
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