Re: Are linux-fs's drive-fault-tolerant by concept?

[John Bradford]

> Ok, you mean active error-recovery on reading. My basic point is the writing
> case. A simple handling of write-errors from the drivers level and a retry to
> write on a different location could help a lot I guess.

A filesystem is not the place for that - it could either be done at a
lower level, like I suggested in a separate post, or at a much higher
level - E.G. a database which encounters a write error could dump it's
entire contents to a tape drive, shuts down, and page an
administrator, on the basis that the write error indicated impending
drive failiure.

> > Buy IDE disks in pairs use md1, and remember to continually send the
> > hosed ones back to the vendor/shop (and if they keep appearing DOA to
> > your local trading standards/fair trading type bodies).
> 
> Just to give some numbers: from 25 disk I bought during last half
> year 16 have gone dead within the first month. This is
> ridiculous. Of course they are all returned and guarantee-replaced,
> but it gets on ones nerves to continously replace disks, the rate
> could be lowered if one could use them at least 4 months (or upto a
> deadline number of bad blocks mapped by the fs - still guarantee but
> fewer replacement cycles).

Are you using the disks within their operational limits?  Are you sure
they are not overheating and/or being run 24/7 when they are not
intended to be?

John.