USB WD10SMZW 11Y0TS0
Usb PCB 2060 800069 001 Rev P1 No Com Connection pins
date: 01 Oct 2018

User saw erase Notice. Pressed ok, And Fast formatted drive. Total time under 2 min.

I Searched With RSturio, Only 17 file Total 300 Mb at Begginning part. Looked inside drive with hex editor. Fully 0 except that 300 MB. User told There was 80 GB data before .

How Could It Be Full 0 within that short time? . Is it about drive architecture so allow that very quickly? That is a new drive , more unknown things ://

And What is compatible SATA PCB, any ideas?

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Sexy Womans from your town

FWIU these newer WD's (SMR) work in a different way to normal drives. They have a translator in the SA that knows when a sector has data or not. So if the sector being read has no data, the translator tells the drive to report zero's without actually reading the sector. I presume this is done via some sort of bitmap. So reformatting the drive is just a matter of clearing the SA translator rather than wiping the whole drive so it is much faster.

I must stress this is my understanding of what happens in these drives, anyone please correct me if I am wrong as I have been known to talk out of my ass........ We are all still learning about the FW behind these SMR drives.

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HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group

Edit,
No erase notice. Talked again with customer. He told only deleted partition on disk manager. And made a new one. That's it. Nothing more.

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Sexy Womans from your town

Thanks for response.
Your info gives me hint what happened. It's useful info for me. But customer want back drive. I am not sure is there any way to solve this case.

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Sexy Womans from your town

Try it on a new Palmer or Charger drive, you will get the same result.
Deleted is deleted. Also if you check these drives will report they support "TRIM"

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Digitalsupport Data Recovery
https://digitalsupport.dk

I saw it in properties TRIM at Rstudio.

So No change to recover with known information about this drives ?

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Sexy Womans from your town

Yesterday, I purposely filled in a healthy external drive with this model. I purposely selected a different pattern other than 00s.
I used 99s.

After filling in, I disconnected the drive, reconnected it, initialize it and created one NTFS volume.
All empty space now reports with 00s (not 99s).

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Hard Disk Drive (HDD), Solid State Drive (SSD, SATA, NVMe, etc), USB Flash Drive and RAID Data Recovery Specialist in Massachusetts

Interesting. I guess that proves the theory is correct. Thanks for sharing.

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HDD, SSD, Flash and RAID Data Recovery
Founder of The Data Recovery Professionals Group

Look like data gone totally.
Here is some info about SSD TRIM function.

https://www.easeus.com/mac-file-recover ... overy.html

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Sexy Womans from your town

Welcome, Luke.

On SSDs, TRIM implications habe been known.
On HDDs, it is new. So, learning how things are happening.

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Hard Disk Drive (HDD), Solid State Drive (SSD, SATA, NVMe, etc), USB Flash Drive and RAID Data Recovery Specialist in Massachusetts

I Iam new one in DR ))

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Sexy Womans from your town

ISTM that one could determine a drive's TRIM support and subsequent read behaviour by examining Identify Device words 69 and 169.

IDENTIFY_DEVICE_DATA structure contains the data retrieved by an ATA identify device data command (0xEC):

https://docs.microsoft.com/en-us/windows-hardware/drivers/ddi/content/ata/ns-ata-_identify_device_data


ATA/ATAPI Command Set - 2 (ACS-2):
http://www.t13.org/documents/UploadedDocuments/docs2011/d2015r7-ATAATAPI_Command_Set_-_2_ACS-2.pdf



The reasons for the desirability of deterministic read behaviour after TRIM are explained in the following article which raises several security concerns:

TRIM: Behavior of Subsequent READs:
http://www.t10.org/ftp/t10/document.08/08-347r1.pdf

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A backup a day keeps DR away.

If you would save translator modules in advance, and after initilizing drive and receieving complet 00s , you would put back translator modules back, you would get almost all yours 99S everywhere again, even after formating with TRIM.

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Angel Data Recovery

Recovering deleted files or formatted drives is going to be fun.
Need to ask client to bring a translator backup to make it possible

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Digitalsupport Data Recovery
https://digitalsupport.dk

Good to know, many thanks.
This was a new drive ready for storing a new customer's data, so I did not bother to save the firmware on it.

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Hard Disk Drive (HDD), Solid State Drive (SSD, SATA, NVMe, etc), USB Flash Drive and RAID Data Recovery Specialist in Massachusetts

i have some ideas which i wll try to implement soon...

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Adatmentés - Data recovery

According to SMR overlap track designed, hdd wants to get data posion and rewrite the data onto the new track and destroy old data in that track.(trim/unmap). This method speed up the hard drive.i think this equel to SSD trim system. But it has bit defferant.

windows 7,8,10 have this TRIM command always enable and trim canbe disabled.

i noticed This SMR drives have huge area of bad sectors and most of time first 100000 sectrors. This result always ask " format " and most of computer guys try to recover after formating.

I think this has not only a single Traslator. After formating all data wipeout. I think even we have SA info, data cant be recovered.

Into what?

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Joep - http://www.disktuna.com - video & photo repair & recovery service

Case closed for me. But topic still alive . I have sent back customer drive. ((

I still wonder this case. So many normal user would meet this situation in future. Usually computer repair shops doing that delete partition make new one. And search drive. O lala data wiped. Kinda nightmare

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Sexy Womans from your town

that's the point, it is not wiped.

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Adatmentés - Data recovery