[Fwd: power down]
dwmw2 at infradead.org
Wed Dec 8 10:10:15 EST 1999
vmalik at danielind.com said:
> <desperate plea> Come on guys (and gals). Am I championing a lost
> cause here? Have we given up on power down reliability of nonvolatile
> data in embedded systems under Linux?
Power down reliability of such data is an absolute must. I expect embedded
systems using NFTL and ext3 to be absolutely reliable even if the plug is
pulled half-way through a write.
This means we end up with two separate journalling / logging mechanisms - one
at the block device level (ext3) and one at the flash media level (NFTL). As I
said - ideally, we ditch that in the end and have a journalling/log-structured
filesystem directly on the flash media.
> Is anyone interested in this!? Lurkers please respond. How many people
> read this list anyway? </desperate plea>
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