WD MyBook Duo

[Joe]

Hi All,

I have two WD MyBook Duo enclosures from the same client. One containing 2 x 6TB Drives and one of 2 x 4TB drives. I was told they were both set to RAID 1. It appears they both died from a power surge. 

The 6TB enclosure doesn't get any power but one of the drives works fine but the data looks encrypted. However, DE didn't find an encryption key on it. I'm guessing that the key is stored on the RAID controller bored. 

The 4TB enclosure works fine but both drives had tripped the 5V TVS and worked fine once I removed them. I do know that this one had a smartware password on it (which I know). When I put them back in the enclosure it shows up as uninitialized RAID 0 (which is the default setting) and does not ask for a password. I'm pretty convinced that the box has been reset after the failure. When I looked at these 4TB drives in DE I did find encryption keys on the drives themselves however the data still looks encrypted even after using the decrypt feature in DE. 

My theory is that the RAID controller would use the smartware password to decrypt the key which is stored on the drive but now the that the controller was reset it doesn't recognize these drives and doesn't ask for a password. My question is, how can I obtain the actual key from DE and manually decrypt it using the known password and then plug it back in to decrypt the drive?

I tried using other drives to set up the box to RAID 1, add the password  and then plugging back in the original drives but it appears the controller keeps track of which drives are inside based on serial numbers or some other unique identifier because when I plugged in the original drives it was back to default settings.

Here's what I did:

1. Plugged in two WD test drives of 1TB each, set it up to RAID 1 and added the password. 

2. Checked the two test drives in DE just to see if the controller had put a key onto the drive. There was none.

3. I wiped both test drives sector by sector using DeepSpar and plugged them back in. The controller still recognized these drives as RAID 1 and asked for the password which tells me the drive info is kept on the controller. When I looked at the data via the enclosure in hex  I could tell it was using encryption. (They had been wiped with zeros but it showed other values)

This whole thing seems odd. Why would there not be encryption keys on the 6TB drives but while they are present on the 4TB drives. If it has something to do with the smartware password then why was there no key present on the two 1TB test drives?

In any case, I'd like to try to manually decrypt the key on the 4TB drives using known password and then use it in DE to decrypt the drives. It seems to be the only thing left to try on the 4TB drives. 

Is there a way to do that?  Any other ideas or insights?

I apologize dragging on so long but I wanted to give the full background.

Thanks for making it all the way to the end of the post  :)

[Tim Homer - Desert Data Recovery]

Hey Joe

 

Not sure how much help this will be as I don’t think I have ever had a Smartware/Password protected RAID in.

 

6TB

Can you see an encryption chip on the hard drive PCB and/or the USB bridge board?

 

4TB

Are you sure they aren’t SED’s in DE. It can be confusing as it finds an encryption key, but setting it actually encrypts the data.

 

Do the drives have the encryption module?

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[Joe]

6TB. Yes there is a JMS chip on the RAID controller (I believe that's an encryption chip)

4TB. I tried both ways and the data still looks encrypted

You last question about the encryption module, are you asking about my test drives?

By the way, the 4 and the 6 are all WD Reds

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[Alandata Recovery]

send some hexdumps of the first 4 blocks of the drives.

also block 2047 and 2048 would be interesting.

and the first non-zero blocks in reverse from the end of the drives.

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[Joe]

@Alandata

Sorry for the delayed response. 

Are you referring to the 4TB or 6TB? If you mean the 4, do you want to see the dump after using decrypt in DE or without that?

Thanks,

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[Alandata Recovery]

straight from the drive

whichever drive or both that you are looking at

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[Joe]

Hi, 

These dumps are from drive #2 of the 2x6TB enclosure. DE does not find any encryption key on it.

https://drive.google.com/file/d/0B8VCY1A6Wd7mOUp6M1Q3enNvN0U/view?usp=sharing

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[Joe]

These are dumps from Drive #1 of the 2x4TB enclosure. DE does find encryption on the drives but these dumps are without using the decrypt feature.

https://drive.google.com/file/d/0B8VCY1A6Wd7mVDVxRThNdThHUU0/view?usp=sharing

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[Joe]

Here is the same 4TB drive using the decrypt function.

https://drive.google.com/file/d/0B8VCY1A6Wd7mX09HMktnUDQtbUE/view?usp=sharing

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[Alandata Recovery]

they look to be encrypted with wd encryption.

and the ends of the drive are showing the wd virtual data protected area stuff.

if the user added a user password then I think what happens is that

users password is used to scamble the drives password sector,

to decrypt the user enters his password which then unscrambles the password sector

and that is then used to decrypt the drive.

whats the max lba according to pc3000 ?

whats the max lba when its connected through the bridge board?

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[Joe]

I had the same thought. That's why I asked if there's a way to manually decrypt the key with the user password and then plug that into PC-3000 to decrypt the drive. It would be pretty neat  :)

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[Joe]

Oh and I'm away for the weekend so I'll have to get back to you Monday about the max LBA question.

[Tim Homer - Desert Data Recovery]

PC3000 has the ability to recognize that encrypted sector and gives you the option to enter the password which I guess isn’t happening. If this wasn’t a RAID 1 but a RAID 0 then PC3000 would be looking in the wrong sector for the password maybe. Just a thought.

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[Joe]

The customer says he is sure it was RAID 1 and if that's true there must be a unique encryption key for each drive because when I compared the same sectors on drives 1 and 2 I saw different data. I didn't know PC-3000 has the option to enter the user password. Where would I find that option? That might be all I need in order to solve this one.

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[Joe]

Hi All,

I once again have one of these for the recovery. I'm pretty sure it was set up to RAID 1 and the data is encrypted but the controller is dead. 

Does anyone have experience with this?  I thought I'll buy a donor controller and move the ROM chips but I can't find one. Also, I'm not even sure if the encryption key is stored in one of the ROM chips or if it's in the JMS chip.

Any ideas?

TIA

[Data Recovery Guru]

My Book Duos are tricky.

Sometimes a straight swap of drives into a compatible enclosure works, sometimes not.

I experienced both.

It seems the enclosure's controller is communicating with module 25 on the drive's firmware for decryption.

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[Joe]

That's because sometimes they're encrypted and sometimes not, just like the passports.

The drives I'm dealing with now are the 8TB WD/Hitachi drives.... It doesn't even get recognized in PC3K and I have no idea which utility to use.

[Joe]

You know for sure that the encryption key is stored on the drive in Mod 25?

Either way, I can't find the controller online.

[Data Recovery Guru]

I don't know what model My Book Duo you have.

If the drives are healthy, then you can simply put them in a compatible enclosure.

In my case, I cloned the drives to compatible WD drives. Wrote mod 25 from patient's to the clones. It decrypted the clones  on the fly through the enclosure's controller.

As you can see, the controller is not easily removable from the enclosure due to design. Hence not finding any for sale. May need to buy a whole new whole external drive.

What is important in your case is:

-What exactly is wrong with the drives? If anything.

-Are they really WD architecture? Or Hitachi? Choose new supported families to see what takes. Inspect PCB chipset, etc

I doubt WD puts Hitachi architecture drives in their external drives 2019 or older.

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[Joe]

The drives are perfectly fine. Only the controller is dead.

I bought this device for the client in the end of 2017 to replace another drive which I recovered for them. 

The drive model WD80EFZX-68UW8N0

[Data Recovery Guru]

It is a WD drive. Not Hitachi.

Just buy another external drive and should be good swapping the drives into that one. Though, for good measure, I would clone them. Use the external's model off the label to search for drive.

Or post it here, maybe someone has it. Not sure where you are located though.

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[Joe]

It's definitely Hitachi, I can see it's a Hitachi PCB

[Data Recovery Guru]

Ok, cool.

So then that would change the encrypting dependencies on mod 25.

Something else may be going on.

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[pbzcbf...@gmail.com]

I can confirm that this drive has the new HGST firmware architecture:

http://www.hddoracle.com/viewtopic.php?f=21&t=2549

If you can upload photos of the "controller", I can try to help you repair it. Sometimes there is a simple fix.

[Joe]

Here you go. Please let me know if you need a closer photo of any part.

[pbzcbf...@gmail.com]

The photos are blacker than Donald Trump's heart. I can see 5 power supplies, but I can't make out any part markings.

[Joe]

Ok, Let's try this one?

[Joe]

Here I circled the power input.

[pbzcbf...@gmail.com]

I would start by measuring the voltages at each of the 6 inductors. There are three 4R7 inductors, two square packages at L10 and L19, plus a rectangular one at L22.

[pbzcbf...@gmail.com]

The Asmedia chip looks like a USB hub. If that is faulty, you should be able to bypass it.

Check for +12V on either side of the 000 resistor near the DC power connector.

[YB]

Thank you. I'll have to do it Sunday as I already left for the weekend. 

On Fri, Apr 30, 2021, 16:13 pbzcbf...@gmail.com <pbzcbf...@gmail.com> wrote:

The Asmedia chip looks like a USB hub. If that is faulty, you should be able to bypass it.

Check for +12V on either side of the 000 resistor near the DC power connector.

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[Joe]

Hi,

Here are my measurements:

000 = 12.2v both sides

L19 = 1.064 and 1.047

L10 = 2.51 and 2.527

L6 = 5.05

L7 = 5.04

L8 = 5.04

L22 = 1.1193 and 1.208

[pbzcbf...@gmail.com]

I assume that L19 is the Asmedia Vcore. If so, then it would appear to be OK. I could check the datasheet if you could identify the markings on the IC.

The other supplies appear to be fine also.

If you plug a flash drive into the PCB, is it detected by the OS? AFAICT, the Asmedia device is a USB bridge, so the OS should enumerate any USB device attached to it.

[jol qwerr]

@Frank

do you think trying to convert the USB to sata would be an idea ?

[pbzcbf...@gmail.com]

I don't understand. ???

[pbzcbf...@gmail.com]

If the PCB is not communicating with the host, my approach would be to find out why. Try a USB 2.0 port. That requires different USB signal pins.

If the Asmedia chip is faulty, you could bypass it with a direct USB connection to the JMS561 bridge IC.

JMS561, JMicron, SuperSpeed USB to Dual SATA Gen3 Ports Bridge, QFN-64:

http://img.hqew.com/file/Others/110000-119999/113018/Electronic/2015810235048240194.pdf

http://img.hqew.com/file/Others/110000-119999/113018/Electronic/201581223388927288.pdf

I would backup the serial flash memory ICs attached to the major chip(s). I recall that someone at HDD Guru (michael_chiklis) managed to accidentally overwrite this chip by swapping drives. Is it possible that the customer has provided you with non-original configurations? Did he/she swap drives between enclosures? A chip dump could tell us a lot.

I can't understand how two drives sustained damage to their 5V TVS diodes when there is no damage to the 5V regulators on your PCB??? That doesn't make sense. I think the customer is not telling you everything.

[pbzcbf...@gmail.com]

There are still several easy things you could do, depending on the fault. For example, if the dual MOSFET switches (U8 & U9) which supply 5V/12V power to the drives are blown, then they can be bypassed with wire links. The adjacent unpopulated resistors seem to be provided for this purpose (R122, R123, R124, R125).

[Joe]

Ok, Here's my latest update. 

I tried connecting it again and this time it worked, I can't say how or why.

What's interesting is that it only works via USB 2.0  I tried several times and 3.0 doesn't work. So right now I'm copying about 6.2TB via 2.0 but it will take a few days.

[jol qwerr]

what I meant to ask if its possible to tap into the USB lines to convert it to SATA ?

like its done on WD USB PCBs (2.5" drives)

[pbzcbf...@gmail.com]

What you are suggesting doesn't make any sense. 

[pbzcbf...@gmail.com]

I would think that there is an open circuit in the USB 3.0 signal traces. Check L17 and L4 near the USB connector.

I suspect that the JMicron bridge doesn't spin up the drives unless it senses a USB host.

[YB]

It spun with 3.0 as well but was not recognized by the computer. 

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[pbzcbf...@gmail.com]

Then why did you report that "the 6TB enclosure doesn't get any power"?

[YB]

Because when I first got it, it didn't. It didn't spin and even the indicator lights didn't come on. I have no idea what changed. 

To view this discussion on the web visit https://groups.google.com/d/msgid/datarecoverycertification/53a806b0-d0b5-481e-81ac-ed9c2f807bf2n%40googlegroups.com.

[YB]

Wait, I'm dealing with two 8tb drives here. I'm not sure which 6tb you're referring to. Unless it was a typo?

[pbzcbf...@gmail.com]

"I have two WD MyBook Duo enclosures from the same client. One containing 2 x 6TB Drives and one of 2 x 4TB drives."

[Joe]

Oh, that post was from several years ago. I was dealing with a similar situation now so I just updated the post with the current details. I apologize about the confusion.

But the photos and details I sent in response to you are all from the recent case.

[pbzcbf...@gmail.com]

Sorry, it was I who was confused. I did see the 8TB update, and even commented on it.