Hi,

WD Elements 1042 - 500GB - USB 3

I recovered all files ... taked long time.

Now I'm in research part to discovery what happen.

163 Bad sect. and I can format in EXT4, XFS or any other FS.

Transfer a big file (1 ... 2 GB) and start with 20MB/s (USB 2) in the first 100, 200 MB and then drop to 3.

In the end the led blinks but has difficult in write the index to FS.

Best regards,

Neuron

Does WD have any tools to interrogare the health of the HDD? or maybe some of the tools mentioned here and the Oracle might show you a problem, like WDR or Sediv. Though I don't use the tools yet so cant really know.
Unless you are planning on fixing it, I am not sure finding out the root cause is really very beneficial. Just replace and move on. I used to spend many hours looking tor the causes of things IT related but now really concened about getting up and running.

I understand well why you want to find out, but the chances of the same cause, same issue, same exact circumstance is low most times.
I think complexity of systems and variety coupled with a pretty massive workload in IT make it this way, for me anyway.

I'm of the opposite view. Sure, there are times when expediency is paramount (eg production situations), but I feel a lot better if I can find out as much about the problem as possible. At the very least one might be able to determine if similar failures could be avoided with appropriate practices and safeguards. In fact I see the OP's problem numerous times in various storage forums, but I don't think I've ever really seen a satisfactory explanation. Is it simply that the drive is bogging down internally with read retries and error correction, or is it the OS that is throttling the performance, or is it a combination of both?

_________________
A backup a day keeps DR away.

I agree with you fully, but for example in my job I have not enough time to do all the work required to support around 500 users, test new things and maintain/monitor network as well as all the winxp/win7/win8, office 2007/2010/2013 and server 2003/2008r2/2012 differences and upgrading to sort out. It is impossible for me to spend tie on a hunt that may or may not give results, and even more importantly, may or may not be useful at a later date.

I would LOVE to investigate, but cant. Someone that can justify it, then I wholeheartedly agree with you.

I'm glad you are alright.
I sent lots mail, thank you for your comments and advise.
But you didn't reply!!!!!!!!!!!!!

I have several tools to diagnose the Cap., Res., Trans. Mosfet in the disk.

If other members ... please explain what happen to the drive I will appreciate.

Best Regards,
Neuron

The media is likely severely deteriorated in a particular location. Other areas maybe not as deteriorated. Maybe other issues. Was the drive dropped?

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

" ... particular location ... " noooooooo ... because I made several partition (3 ... 4 ...) and in all of them the copy has the same symptom.

"... dropped ... " Nooooooooooooooo

Best Regards,

Neuron

If it is not mechanical issue, then it's either firmware or deteriorated media, or both. Either way, need more advanced testing.

I am curious on the condition of the recovered files and what partition they were recovered from.

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

Try removing the circuit board and cleaning off the corrosion, then run MHDD F4 scan and select ERASE WAITS and see what happens. This will destroy data! But I take it you already saved the data elsewhere...

Set the starting and ending sectors in MHDD F4 scan around the bad sectors area, and select to loop the test with erase waits turned on. If it quits wait erasing the slow sectors on the second or third pass then it was probably electrical noise caused by the corrosion which got worse during long transfers because the long transfer heated the corrosion and increased its electrical conductivity.

If it fixes the bad sectors, I would then run FASTERASE, and it should be fixed and reliable... until the corrosion returns in a year or so.

I have around 40 working WD drives, and I like to remove the corrosion at least every two years. Its a pain but it saves the drives and makes them last.

_________________
http://www.youtube.com/user/TerraformingMaster

Thank you for the info.

But MHDD don't see USB, only 1 - Internal Disk, 2 - CDROM or 5 - PC3000

And the USB interface is in DISK ... I can't connect directly to the SATA - Tower.

Best Regards,
Neuron

I don't know whether to laugh, or cry...

_________________
http://www.youtube.com/user/TerraformingMaster

You have to disassemble USB unit and remove the SATA drive and hook it to a desktop SATA port.

_________________
http://www.youtube.com/user/TerraformingMaster

You need a newer version of MHDD for SATA. AFAIK Hiren's boot CD 9 or greater contains the required version, I know Hiren's 6 doesn't. And of course, you have to remove the drive from the USB box and hook it to the SATA controller on your desktop. You need a Torx 9 screwdriver (@ Sears, $3) to remove the circuit board from the drive to get at the corrosion. I also usually blast the board with a can of brake parts or carburetor cleaner after I get it off, then use a pencil eraser, then blast it again.

_________________
http://www.youtube.com/user/TerraformingMaster

I KNOW THAT BUT IN THIS UNIT LIKE I SAID, THE USB IS IN PCB!!!!!!!

Hiren's.BootCD.15.2 You think is appropriate? heheheheh

2.5" not a 3.5" disk

You can't use a Torx 9 ... for this (2,5") -> Torx 6 ... and for 3.5" - Torx 8

Yes pencil eraser and al. Isop.

Best regards,
Neuron

Yeah I just noticed that about these newer USB drives... no more SATA connector. Not a wise move on WD's part I must say, once it becomes known what data recovery costs on these drives will be, and that you can't reuse the internal drive in a laptop or desktop. If I had the money to do it I would sell WD stock options short over that in 6 months or so.

Still, remove the PCB and clean off the corrosion, then use the WD factory test on the drive since MHDD doesn't do USB. WDDIAG or whatever, DATA Lifeguard. Choose the zero drive low level format then run the diagnostic scan. Removing the corrosion will likely fix the problem. Might want to get WDR-DEMO and use it to clear the SMART if it starts throwing SMART errors. Use WDR to clear the GLIST, and the SMART, then run the DATA Lifeguard scan.

_________________
http://www.youtube.com/user/TerraformingMaster

The ptaak at Western Digital would be wise to recall these drives before the word spreads too far.

Any computer geek in existence will be telling every non-computer geek never to buy one of these drives, and most of the non-geeks will never from that point forward buy ANY WD hard drive again.

https://www.youtube.com/watch?v=IAqy34fln2A

Recall the pieces of junk and refurbish them with SATA boards, ptaak.

If you value your stock price. And send me a case of 3TB SATA drives for my being generous enough to bring up the issue. Seagate must be celebrating as we speak with champagne.

_________________
http://www.youtube.com/user/TerraformingMaster

Most geeks (50 percent of the market, high schoolers building functional robots that look like the terminator) know full well that the USB box and the drive usually don't both die. I know it, and so does half your market.

So it is nice to know that you can get a USB external drive, and use it to clone your laptop hard drive. So, if the drive in the laptop croaks, one simply takes the SATA drive out of the USB box and installs it in the laptop and 15 minutes later their system is restored. Or if the drive dies they can take another drive and put it in the USB box.

But no longer, speaketh the "wizards" at WD. Great "backup" functionality. Great selling point versus your competition...

It pisses me off, and it will piss off every other computer geek, and word of it will spread far and wide.

It is sad to see once mighty and fearless warriors reduce themselves to ptaak. Maybe you should add a "one touch backup" button. If Klingon food is too much for you, perhaps we can get one of the females to breast feed you.

_________________
http://www.youtube.com/user/TerraformingMaster

If you do a search you will find how to bypass the USB Bridge on the USB PCB and solder SATA connections to it.

Try not to get too excited, these USB boards have been out for a year or 2 at least.

I prefer Linux but ...

Sediv

Data Lifeguard Diagnostic for Windows

Another tool?



Thanks Feklar and HaQue

Neuron