 trparkyApple... YUMPremium,MVM
join:2000-05-24
Cleveland, OH
kudos:2 | reply to rusdi
Re: Buggy Intel SSD 520 Series SSD Firmware I know about that, but appears that that may indicate that a TRIM only happens when you delete files. What about an overwrite of a file? |
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 rusdiAmerican VPremium,MVM
join:2001-04-28
Flippin, AR
kudos:1 | said by trparky:I know about that, but appears that that may indicate that a TRIM only happens when you delete files. What about an overwrite of a file?
Overwrite doesn't happen with NAND flash. it must be deleted and written in other blocks...
Here's a nice article that might help explain the difference between TRIM, and Garbage collection.
»thessdreview.com/daily-news/late···-primer/ |
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 DarkLogixTexan and ProudPremium
join:2008-10-23
Baytown, TX
kudos:3 | reply to trparky
said by trparky:I know about that, but appears that that may indicate that a TRIM only happens when you delete files. What about an overwrite of a file?
Due to wear leveling you don't ever overwrite
overwriting nand is very slow and time consuming so instead it writes to a new location and marks the old for GC to clean up
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