Hi!
I've been trying to heal a Seagate SCSI disk (ST3146807LC) using MHDD, and the fact is that I get 99% of the blocks marked with an "x" (UNC). If usually I get one <10ms block each line, and the rest in the line are <3ms blocks... this time I get all "x" blocks in a line, and every few lines, a <10ms block :S. Oh, and just when I start the scanning, I get a whole green line (<150ms blocks).
Imaging the disk would take like a few years, since in 24h's time any imaging tool I used could only copy ~150 MB, and it's a 146 GB drive. But taking a look to those 150MB, there's still data in them, although there are thousands of bad sectors flagged as "5E" or whatever...
So, what can I do with this hard disk? any suggestion? I think I might open it and check for head crash or a huge scratch :S...

P.S.: Although I choose the "remap" option, MHDD doesn't seem to remap any block (no blue blocks, just "x") :S, why's that?
P.S.2: I get the "CATASTROPHIC ERROR, disk full [...]" whenever I scan about four million sectors, either I scan from LBA 0 or not. Is that because of my RAM capacity?

No it's only because the drive has more serious problems....

Could you do something with it? Because PC3k is not helping me... I think it has a very big physical problem u_u maybe a headswap could help... but, unfortunately, I think the problem's gonna be in the platters.

You mean PC3K SCSI ? The first step should be proper diagnose. I think there could be a 15-20% of probability of damaged PCB but the fact it IDs properly and you can run MHDD on it makes me think about other problem like SA/firmware (can you check translator BTW ?). THEN you can check the heads.
What is the defect history of the drive - I mean : when and how the failure came out ? suddenly ? increasing errors then complete failure ? working OK then after turning off and on the system the drive failed ?

From SCSI Cheetah the most common problem its the LBA 0 Problem, when u send the CDB Commands wich answer´s did u get?

Regards

Seems not LBA0 as he can use MHDD on it.

That's what I said. Now only the right tools are needed... or (as always) send to a pro...

Everything seems to be OK. There's some data I've been able to recover, but there are lots of bad sectors, that's all...

If got all relevant data reformat the drive after an ERASE with MDD and see what happens (maybe it's only ECC...) : rescan it. IF fixed, live with it. If problem comes out again, head(s) or media are degrading.

I sure hope MHDD doesn't report a UNC error for any reason other than the drive itself reporting a UNC error.

Also MHDD has the option to load SCSI drivers.

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You don't have to backup all of your files, just the ones you want to keep.