Re: NAND flash and JFFS(2)

Thomas Gleixner
2002-02-13T20:07:00Z

On Wednesday, 13. February 2002 21:03, Lance Nakamura wrote:
> 2 things:
> 1) can the test be set to remove power more frequently,
> as in every minute rather than every hour? our experience with
> power fail safety is that you have to run at least 100K cycles,
>
> 2) an important test is to remove power while the file
> system is trying to recover. in the real world, power failures
> are rarely clean, isolated instances. you may get multiple failures in
> as little as 1 second (failures a few hundred miliseconds apart).
You're right, but this was a test for a big hack inside the fs.
The power on/off was just a little addon. If we have finished some left
issues i will setup a real power fail safety test.