Seagate - ST3500320AS - SD15 - Is it BSY or somthing else?

[guru]

Quote"

"Failed to read sector 6360320"

I've ran the clone several times and it seems to always report the same location. Once the error occurs the drive seems to be inaccessible and the computer needs to be rebooted to bring it back"

If media tools is reading the sector via DMA/UDMA this is a typical problem, if you can select PIO mode for the problematic sector/s it may help.

[Vulcan]

@guru:

Just FYI, based on my investigation of 7200.11 drives with the same SMART data signature as the OP, the type of Read command used (PIO or FPDMA) made no difference to success or not, because the outcome was no longer related to that specific sector. But of course, without the drive in front of us, either you or I could be correct - impossible to say remotely

[guru]

@Vulcan

DMA transfer can hang which leaves the system unresponsive. He may be luckier reading the sector in PIO mode ( 50/50 chance ) but at least he can carry on the clone (unless his drive is toast around that area) and then reverse clone in DMA mode.

Anyway my 2 pence

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[Vulcan]

@guru: Many thanks for the image - yep, my ears look just like that

FYI, the issue I have seen with the 7200.11 drives with that SMART signature, causing drives to "disappear" from the OS, was not related to the DMA transfer hanging - that's why it didn't help when I forced PIO mode (i.e. disabled NCQ), in my investigation.

I understand that in general, you're completely correct about the possibility which you describe, and certainly you'll have much more DR experience than me. I'm just saying that in my investigation, on those specific drives, with that specific SMART signature, an interface hang related to transfer mode was not the cause of the "drive disappearing" problem (which then requires a power-cycle to clear)

If your suggested change to PIO mode works for the OP, then great! But if that change does work, then it wasn't the same issue which I saw. This is the problem with remote diagnosis - the OP seems to have the same issue as I investigated, based on what I have seen of the description and SMART data, but without him also having the same test equipment as I used, then I can't be completely sure... As we've both said, reverse cloning is something else that the OP can consider

Live long and prosper

[Doomer]

I'm finding this very hard to comprehend.

I reveal this secret
I better stop posting anything right before bed time

[Doomer]

BTW, does that mean I know more than you?

You can think that if you'd like
Time will show the truth

[belshawm]

Current Update:

Yes I should have said power cycle - as reboots do not work as you guys know.

So Currently running ddrescue and have skimmed around 80Gigs off the drive - I will attempt the reverse clone and let you know how that performs.

Thanks again for all this DIY incite.

[fzabkar]

BTW, does that mean I know more than you? :P

You can think that if you'd like
Time will show the truth

Evidently you misunderstood the sarcasm. I have confessed more than once that I am ignorant about modern hard drive technology. My only claim is that I have extensive chip level electronics experience which complements the knowledge and experience of other members of this forum. You need to understand and accept that you don't know everything. Unlike you, I am aware of my limitations. When I bow my head, I don't have to worry about any crown falling off.

[Doomer]

You need to understand and accept that you don't know everything. Unlike you, I am aware of my limitations.

Claiming that I know more then you doesn't mean that I know everything. And I've never said that I know everything and never will
Do you think it is so difficult to know more then you? You need to turn on the self-criticism switch

[fzabkar]

Do you think it is so difficult to know more then you? You need to turn on the self-criticism switch

Once again I say that "I am ignorant about modern hard drive technology". I think that's sufficiently self deprecating.

[belshawm]

So I've ddrescued as much as possible ~90gigs from the portion of the drive where the file should be - its about 350 gigs so if I'm lucky its in there.

At this point I'm interested in seeing if I can find a text file from the drive.
I've tried this on the clone but it complains about running out of memory.

Code:

grep -i -a -B20 -A100 'addies.txt' /dev/sda5 > recovered.txt

Are there other tools for pulling a plain old NOTEPAD text file off the disk?


Thanks again,

[mmatos]

belshawn, I compliment your ability to continue your quest for assistance despite your thread being hijacked by an e-pissing contest. Hopefully it will conclude with all parties realizing that their collective knowledge and experience is valuable, and that positive conflict will most definitely be useful for helping those who come to this site in the future.

[Vulcan]

Code:

grep -i -a -B20 -A100 'addies.txt' /dev/sda5 > recovered.txt

Is "addies.txt" the name of a file which you're trying to find (it looks like a filename )? Or is it part of the text that you're trying to find?

[fzabkar]

Have you tried to mount the cloned file system as is, using Linux or Windows tools?

If that fails, you could try searching your drive using a hex editor such as HxD or DMDE. Look for text strings within the body of the file rather than the file name itself.

HxD - Freeware Hex Editor and Disk Editor:
http://mh-nexus.de/en/hxd/

DMDE (DM Disk Editor and Data Recovery Software):
http://softdm.com/