Matthias, Out of curiosity, how will you find the sectors/blocks that reconstruct a certain bad sector? Is the data spread to the same block number on all disks? On Tue, Sep 15, 2009 at 2:03 PM, Majed B. <majedb@xxxxxxxxx> wrote: > I've been trying to migrate for 2 weeks. I can wait another 2 ... maybe 3 weeks. > > Just to be clear, I'm using dd_rescue, not ddrescue (This is the GNU > one). I read the log option but forgot to use it... now I've wasted > over 20 hours... ugh ... /smacks self > > That would be a very useful program for cases like this! > > On Tue, Sep 15, 2009 at 1:52 PM, Matthias Urlichs <matthias@xxxxxxxxxx> wrote: >> On Tue, 15 Sep 2009 13:40:44 +0300, Majed B. wrote: >> >>> Would anyone suggest a better solution? >> >> You should tell ddrescue to log which sectors it failed to copy. You can >> then recover the missing data by reading the stuff at that offset from >> the other disks, and XORing the bytes. >> >> I plan to write a program which does that (and which also understands >> RAID1 and RAID6). How long can you survive without your data? >> >> -- >> Matthias Urlichs >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-raid" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > > > > -- > Majed B. > -- Majed B. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
