Messages in this thread | | | From | John Bradford <> | Subject | Re: Are linux-fs's drive-fault-tolerant by concept? | Date | Mon, 21 Apr 2003 10:42:35 +0100 (BST) |
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> > > > > > I wonder whether it would be a good idea to give the linux-fs > > > > > > (namely my preferred reiser and ext2 :-) some > > > > > > fault-tolerance. > > > > I'm not against this in principle, but in practise it is almost > > useless. Modern disk drives do bad sector remapping at write time, so > > unless something is terribly wrong you will never see a write error > > (which is exactly the time that the filesystem could do such > > remapping). Normally, you will only see an error like this at read > > time, at which point it is too late to fix. > > It is *not* useless. > > I have at least 4 disks with some bad sectors. Know what? > They are still in use in a school lab and as 'big diskettes' > (transferring movies etc). I refuse to dump them just because > 'todays disks are cheap'. I don't want my fs to die just because > these disks develop (ohhhh) a single new bad sector.
Read my previous posts.
A layer between device and filesystem can solve this. It doesn't belong in the filesystem.
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