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Just a test(if works ok if not i already have the files)

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seed.helper

Post subject: Just a test(if works ok if not i already have the files)

Posted: January 2nd, 2019, 6:01

Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal

the hdd is wd40efrx

the drive is getting some read errors (hdsentinel reports it) its now with 4 weak sectors reported... no bad sectors still

when getting the files from the drive i got 4 stops with read error from FreeFileSync program abort - ignore - continue

I want to open the drive and clean the heads of the drive

im curious will this drive work afterwards? (will test it after for seeding replicated data from torrents that i have) Im curious will i kill it off the bat or will it last a month lol?

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pcimage

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 2nd, 2019, 6:09

Joined: November 29th, 2006, 10:08
Posts: 7484
Location: UK

Do NOT open the drive, you’ll only make things worse, not better!

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seed.helper

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 2nd, 2019, 6:22

Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal

the only thing i can do if i dont open the drive is zero the drive

and write and read test patterns but i have a feeling the raw read error rate will increase hmmm

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Spildit

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 2nd, 2019, 14:36

Joined: December 19th, 2006, 8:49
Posts: 10828
Location: Portugal

This should be either Rembrndt or Giant.

Do NOT open the drive. Even if you wer to open the drive inside a HEPA 100 aseptic room the drive wouldn't be of trust any longer.

Just do some testing with software and decide if you should discard the drive or not.

You can still sell the PCB or the entire drive as damaged as people with firmware tools might be able to refurb the drive as long as you don't open it up.

Good luck !

Testing hard disks with some confidence :

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seed.helper

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 3rd, 2019, 1:10

Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal

thanks for the tips guys

will test it further :wink:

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Spildit

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 3rd, 2019, 14:51

Joined: December 19th, 2006, 8:49
Posts: 10828
Location: Portugal

Cool ! Please do let us know the results of your testings !!!!

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seed.helper

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 11th, 2019, 6:12

Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal

thanks for not letting me open the drive... i was prepared to dump the drive because of bad read heads on some bytes...

what happened ? now its fine after testing the drive several days i put 3 tb of data again ( not the same data off course)

some cool but not too important stuff

what do you think problems with the platter surface that recovered ? problems with heads??

id love to get your input guys

Attachments:

hds.PNG [ 80.34 KiB | Viewed 1955 times ]

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Spildit

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 11th, 2019, 9:17

Joined: December 19th, 2006, 8:49
Posts: 10828
Location: Portugal

Most likely problem with just a bunch of sectors that were dificult to read and now are fine after writting zeros to them and new data.

Maybe those same sectors will be "problematic" in the future so it would be better to add them to P-List and re-format the translator, etc ... but now that the drive is ok just don't store anything of value on it and if problem apear again please do let us know.

Also ... BACKUP all of your data.

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seed.helper

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 11th, 2019, 17:07

Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal

i don't have that knowledge :/ i would like to add the bad sectors but lets see

tahnks spildit

i will use this drive for bittorrent instead of archiving data :mrgreen:

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Spildit

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 11th, 2019, 17:39

Joined: December 19th, 2006, 8:49
Posts: 10828
Location: Portugal

seed.helper wrote:

i don't have that knowledge :/ i would like to add the bad sectors but lets see

tahnks spildit

i will use this drive for bittorrent instead of archiving data :mrgreen:

Ok !

Please do let us know if you do have problems with that same drive later on !

Good luck.

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seed.helper

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 12th, 2019, 5:35

Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal

thanks its stable for now... what really bothers me is that this drive was used for backups ( had other main drive with that content that i formated to another project)
this drive was synced updated the day before and the program FreeFileSync didn't got any errors by then... i formatted the main drive

only when recovering data one week later that i got on 4 different files "windows could not copy the file error" and that got me worried and the read error rate started to grow from 739 to 999 when i copyed that 3.2TB that i didnt have backup

is there any way to prevent this silent corruption? any tool? i wouldn't mind to check every file if was good or not

another example of this silent corruption is for example the picture that i have uploaded here

one of then doesn't open .... i think the file got corrupted after all this years and the corruption on the main drive synced to the other drive and corrupted the backup file too

Attachments:

File comment: corrupted picture file

HPIM1583.zip [2.92 MiB]
Downloaded 33 times

File comment: another good file from the same folder

HPIM1597.JPG [ 2.17 MiB | Viewed 1869 times ]

File comment: file from the same night and the same camera with the same specs

HPIM1584.JPG [ 2.76 MiB | Viewed 1869 times ]

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seed.helper

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 12th, 2019, 5:37

Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal

i was curious to see what was the original picture.... my 3 backups all have this corrupted file in the same spot lol

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seed.helper

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 20th, 2019, 1:04

Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal

is there any software to test recovering the file?

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Spildit

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 20th, 2019, 10:18

Joined: December 19th, 2006, 8:49
Posts: 10828
Location: Portugal

Your "bad" picture looks like random garbage to me. The file doesn't even have a header ...

Attachment:

1.jpg [ 147.18 KiB | Viewed 1686 times ]

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Spildit

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 20th, 2019, 10:30

Joined: December 19th, 2006, 8:49
Posts: 10828
Location: Portugal

Your file is gone ....

I can try to patch the header but i can't get any usable image out of that JPG ...

Maybe this is the result of a poor recovery work by some sort of logic data recovery tool ?

Attachment:

1.jpg [ 37.79 KiB | Viewed 1684 times ]

Attachment:

2.jpg [ 162.08 KiB | Viewed 1684 times ]

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Spildit

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 20th, 2019, 10:36

Joined: December 19th, 2006, 8:49
Posts: 10828
Location: Portugal

Let's patch your bad segment of JPG on the good sample that you did provide ...

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Spildit

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: January 20th, 2019, 10:40

Joined: December 19th, 2006, 8:49
Posts: 10828
Location: Portugal

Didn't work ...

Attachment:

1.jpg [ 37.7 KiB | Viewed 1682 times ]

Maybe you should ask @Data-Medics to help you out as i guess he does have more experience with rebuilding damaged JPGs ....

viewtopic.php?f=7&t=33169

Good luck ...

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seed.helper

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: February 13th, 2019, 15:36

Joined: August 11th, 2010, 19:00
Posts: 145
Location: Portugal

Really a thank you for taking the time to try to help me

I have an offsite backup updated until 2 years ago....

Lets see if in that baxkup i can recover the picture or was already corrupted.

I didnt use any recovery tool.

I have several thousand pictures from me, my family and friends from tge last 15 years and counting

I will talk more later on this topic my friend

Strangely the red 4tb drive continues to work just fine one month after....great you guys convinced me to not open it

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Spildit

Post subject: Re: Just a test(if works ok if not i already have the files)

Posted: February 17th, 2019, 16:16

Joined: December 19th, 2006, 8:49
Posts: 10828
Location: Portugal

Please do let us know if the picture was already damaged on your other backups as well.

Regards.

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