Messages in this thread | | | Date | Sun, 05 Nov 2006 15:27:40 +0400 | From | Brad Campbell <> | Subject | Re: New filesystem for Linux |
| |
James Courtier-Dutton wrote:
> I have seen this too. I think that when IDE drive relocates the sector > due to hard errors, one would silently loose the information that was > stored in that sector. > How can one detect this? Of course it would be nice if the IDE drive > told us that sector X had just gone bad but I don't think they do. They > just silently relocate it because in some cases the sector has only gone > a "bit" bad, so the IDE drive relocates it before it totally fails.
I've never seen this behaviour in a drive. All the drives I've seen mark bad sectors as "pending reallocation", they they return read errors on that sector unless they manage to jag a good read, in which case they then reallocate the sector. Or else they wait for you to write to the sector triggering a reallocation.
There may be drives less well behaved out there, but I've not come across them.
Brad -- "Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so." -- Douglas Adams - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |