Palmer -suddenly all became zero (0000) during file checkup

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shahi
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Palmer -suddenly all became zero (0000) during file checkup

Postby shahi » 23.05.20, 12:11

Hi,

Using the latest version.

The drive came with physical issue. Did all the required action. Have been able to explore the volume under DE. While, I was checking/exploring folders/subfolders one by one, suddenly whatever folders I was accessing were showing empty. After a power reset, I see sector shows unusual, I tried Slow fix(It was never harmful, also can restore it back once necessary), in few seconds its 0000. I restored the fix, 02, 32, its remains same
Started to read fw, 190 read fail. Read 0 and 1 amap, wrote this back, but still its 0000.

While I find no others way, now started to read by Utility (READ PBA).

Question1 - is there any bug to the new released utility?
Question2 - The partial 2ndery translator I read can be useful to get back original structure of data?

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digitalsupport
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Re: Palmer -suddenly all became zero (0000) during file checkup

Postby digitalsupport » 23.05.20, 15:44

If all required action means change HSA, lock UA writing and SA backup before any reading, then you did right.
Have not noticed any bugs and without original or reconstructed mod 190 you will not get structures back.
You will find further info here: https://blog.acelaboratory.com/wd-smr-d ... #more-6605


shahi
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Re: Palmer -suddenly all became zero (0000) during file checkup

Postby shahi » 23.05.20, 18:30

I have backed up everything, but 190 was found unreadable in both copy. I was able to read partial of 190. Can it help?

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digitalsupport
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Re: Palmer -suddenly all became zero (0000) during file checkup

Postby digitalsupport » 23.05.20, 18:56

shahi wrote:Source of the post I have backed up everything, but 190 was found unreadable in both copy. I was able to read partial of 190. Can it help?

If you can reconstruct a module 190 from the copies you got, then it might help you.
Last edited by digitalsupport on 24.05.20, 20:06, edited 1 time in total.


shahi
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Re: Palmer -suddenly all became zero (0000) during file checkup

Postby shahi » 23.05.20, 19:03

Unfortunately, it's not helping :roll:
Even, head map creation fails in DE.

Now, we have to see if there is any way to rebuild/regenerate. Current technology don't give such feature, may be in future!

Also, I noticed, PBA reading is not giving any useful data.


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Re: Palmer -suddenly all became zero (0000) during file checkup

Postby Maxim_TS » 28.05.20, 13:59

Actually, I would not say that PBA reading can't getany useful data. We have had a lot of cases with good RAW results. But RAW results may depend on FW peculiarities or heads writing ability. Anyway, it's better to contact us at https://ts.acelaboratory.com/ if you have questions.
With best regards
ACELab technical support
ts.acelaboratory.com
blog.acelaboratory.com


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Re: Palmer -suddenly all became zero (0000) during file checkup

Postby Maxim_TS » 28.05.20, 14:01

shahi wrote:Source of the post I was able to read partial of 190. Can it help?

In my experience, if 190 was saved when data access already lost, the only way is RAW recovery using PBA reading in DE.
With best regards
ACELab technical support
ts.acelaboratory.com
blog.acelaboratory.com


shahi
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Re: Palmer -suddenly all became zero (0000) during file checkup

Postby shahi » 28.05.20, 14:47

Thank You Maxim.

It can read approximate first 30% area, skipping a lot of areas due to defects, the platter is found unstable as well while reading in PBA, HSA died after reading first 30% area, I scanned on done area, and found some swf files, zip file etc. while no document/jpg were produced.

If I can remember correctly, the translator lost during HEAD MAP creation, Head Map creation failed, later I think, I came to see file/folders in DE one by one, It was showing empty, gave a power reset, and it was no more accessible.

Client was in hurry, took back the HDD already.

I will get back on TS if client wants to send the drive again.


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