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840 EVO firmware update preview

Tags:
  • Software
  • Firmware
  • Storage
  • Samsung
  • Evo
Last response: in Storage
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a c 313 G Storage
a b Ô Samsung
October 15, 2014 7:51:41 AM

Today Samsung released a firmware update for the 840 EVO. According to Samsung the problem was not the TLC flash memory. Instead the problem was the flash management software algorithm.

PC Perspective published a full review which included updating the firmware on 5 Samsung 840 EVO ssd's. Here is the link to the review:

http://www.pcper.com/reviews/Storage/Samsung-840-EVO-Pe...

For the record, this was Samsung's official response:

"Because of an error in the flash management software algorithm in the 840 EVO, a drop in performance occurs on data stored for a long period of time AND has been written only once. SSDs usually calibrate changes in the statuses of cells over time via the flash management software algorithm. Due to the error in the software algorithm, the 840 EVO performed read-retry processes aggressively, resulting in a drop in overall read performance. This only occurs if the data was kept in its initial cell without changing, and there are no symptoms of reduced read performance if the data was subsequently migrated from those cells or overwritten. In other words, as the SSD is used more and more over time, the performance decrease disappears naturally. For those who want to solve the issue quickly, this software restores the read performance by rewriting the old data. The time taken to complete the procedure depends on the amount of data stored."

More about : 840 evo firmware update preview

a b G Storage
a b Ô Samsung
4 minutes ago

for those looking for the download page:

http://www.samsung.com/global/business/semiconductor/sa...

its after the section for fw updates for windows users. its called the samsung performance restoration tool. for now its only for windows, theyll be releasing a bootable dos version for Mac by the end of the month. note, the tool can take up to an hour to complete.
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