Hello all,

we would like to know how FFS3 in NOR flash devices behaves in case of power disruption while a write is in progress.

1) How likely is damage to the file being written to?
2) How likely is damage to other files in the same directory?
3) Is there a chance of corrupting other areas of the flash device, possibly if they reside in different partitions?

Are there any comparisons between FFS3 and QNX4 filesystem with regard to this? I am asking because QNX4 filesystem is 
widely used and both QSS and customers have over time deveoped broad experience in what can go wrong and how to detect 
and overcome it. Maybe some of this knowledge is also applicable to FFS3.

Does it make sense to try and place an ETFS into a NOR flash part?

Thank you.
-Albrecht