So sprach Thierry Vignaud am Fri, May 04, 2001 at 07:39:04PM +0200:
> i don't know xfs internals but i don't think it can recover from all
> bad blocks. ie ext2fs has a map of them but if a sb or an
> {inode,free_blocs}-map got  a badblock, you'll get in trouble :-(

And isn't it so, that you should dispose a disk right away as soon as it
get's VISIBLE badblocks?  Like you've said, modern disks are quite smart, in
so far, that they detect bad blocks, and map them internally so, that the OS
doesn't see that there are badblocks on the disk.  IIRC disks have quite
some redundancy which is just for this.

Now, if this redundancy is all filled, the OS will see that there are
badblocks - meaning all the free space is filled and there are too many
badblocks.  Generally this means that the disk is at the end of its
lifespan.

Alexander Skwar
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