Age-Driven

[life24]

Hi,
What is means "Age-driven" in HDD and SSD ?
we introduce an age-driven parity distribution scheme to guarantee wear
leveling among flash SSDs and thereby prolong the endurance of RAID systems. Furthermore, age-driven parity distribution
benefits performance by maintaining better load balance.

 

[corkyg]

If you Google "Age driven parity distribution" you can download several PDF technical papers that explain how it benefits wear leveling in RAID arrays.

https://www.google.com/search?sourc...s_l=hp....0.0.0.13469...........0.co6De3cNV7o

 

[dave_the_nerd]

Age-driven means "as it ages."

So when the drive gets older, it does things differently to make sure it keeps working well.

 

[Squeetard]

SSD's have a limited amount of writes they can do before wearing out. You load windows and your favorite games on it. This data is static, never moves never changes. Now you have what's left over that is being written to and erased a lot. This area of the flash will wear out while the static area will still have it's entire life cycle ahead of it. The firmware is designed to move even the static data around to balance the amount of writes it does to each area of the SSD, to maximize it's life.