Originally Posted By: mlord
No, other than SSDs, drives don't "remember" that info. And for a RAID, it's really the host/RAID software that needs to remember it, to avoid the reads.


I know they don't, Tom was theorising on the benefits to RAID if hard drives id have TRIM support. And if they did (along with a FLASH chip to remember the info) then you could see how it would speed up rebuilds on an array with lots osfempty space (as the drives could rapidly return zeros for blank sectors without having to read the actual hard drive).
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