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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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Just a test(if works ok if not i already have the files)

January 2nd, 2019, 6:01

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?

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

January 2nd, 2019, 6:09

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

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

January 2nd, 2019, 6:22

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

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

January 2nd, 2019, 14:36

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 :

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

January 3rd, 2019, 1:10

thanks for the tips guys :)

will test it further :wink:

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

January 3rd, 2019, 14:51

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

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

January 11th, 2019, 6:12

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

Image

Image
Attachments
hds.PNG

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

January 11th, 2019, 9:17

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.

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

January 11th, 2019, 17:07

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:

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

January 11th, 2019, 17:39

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.

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

January 12th, 2019, 5:35

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
HPIM1583.zip
corrupted picture file
(2.92 MiB) Downloaded 33 times
HPIM1597.JPG
another good file from the same folder
HPIM1584.JPG
file from the same night and the same camera with the same specs

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

January 12th, 2019, 5:37

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

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

January 20th, 2019, 1:04

is there any software to test recovering the file?

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

January 20th, 2019, 10:18

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

1.jpg

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

January 20th, 2019, 10:30

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 ?

1.jpg


2.jpg

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

January 20th, 2019, 10:36

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

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

January 20th, 2019, 10:40

Didn't work ...

1.jpg


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 ...

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

February 13th, 2019, 15:36

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

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

February 17th, 2019, 16:16

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

Regards.
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