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YOU MUST NEVER DEFRAG an SSD drive as this WEARS the MEDIA. there is nothing to be gained
defragging the media since data is not stored the same way as on a HDD. also note that VISTA does
not offer all the functions required by an SSD drive while win7 and win8 does have the extra routines.
hope this helps
The way SSD storage works is different than a HDD, as you probably know. On the upside, there are no moving parts for flash memory, so you don't have to worry about mechanical wear from moving a mechanical wear around to read data, so head crash is a thing of the past. There is an erasing limit on the flash memory cells and when that limit is reached, SSDs will not be able to write (data is erased when data is written, and yes I know that sounds circular, but there you go, it erases old data before it writes new data, it cannot over-write like a HDD). Once that limit is reached, which depending on the firmware is 5,000 to 10,000 operations, a SSD becomes read only, so most of the time your data is still accessible. The upside is that usually you can calculate life remaining so that you are not faced with a sudden and unanticipated failure. Usually. Like anything else in life, SSDs are not perfect, and you can sometimes have a failure occur without warning.