Hard disk failed suddenly!

March 22, 2013 at 08:55:14
Specs: W7, DualCore
My second hard drive just failed!!

It's a Western Digital Green 1Gb SATA; I've been using it as a second hdd for storage, for about 1.5 years.

I can't see it with Explorer.

Error messages:
"E: is not accessible. Data error (cyclic redundancy error)"
"You need to format the disk before you can use it"

This happened suddenly, today, out of the blue.

When I go to Disk Management, after a long time it says that the drive is RAW and healthy!

I ran a test with SeaTools after rebooting and it shows that "test failed" and some codes.

Here are the images:



The hdd gave little signs of problems before (like cyclic redundancy error), so at that time I ran check disk at boot, but it never happened to fail..

Please help, what can I do?

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March 22, 2013 at 10:11:05
Is this an external hard drive? If so, you most likely have improperly removed (disconnected) the drive. You should ALWAYS use the safely remove icon in the tray by the clock.

Was the drive formatted using FAT32 or NTFS or something else?

You may be able to repair the corrupted partition by using Easeus Partition Recovery or testdisk.

You should be using WD tools to test the disk. While Seatools may be able to run some tests the Western Digital tests will be more comprehensive. Get the one for DOS from the WD site.

Get both from the links below. If you are storing the only copy of your personal files on that drive I suggest you try to repair the partition first. Then make a second copy of the files, DVDR or another hard drive would work. Then run the WD drive fitness test. If the drive fails that test contact WD for an RMA number. Excessive heat can and will shorten the life of any drive.

CRC errors can be caused by many factors. I asked about the type of format because FAT32 only supports 4GB file size. Attempting to write a file larger than 4GB can result in a CRC error. Disconnecting the drive while files are still being written can also cause that error.



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March 23, 2013 at 03:04:21
I think that seatools outputted the sector list of all the bad blocks. So your drive is bad. You will have to replace it.

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March 23, 2013 at 03:24:22
I'm very disappointed; I thought WD is much more reliable.

Or is it only the Green series that's junk ??

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March 23, 2013 at 03:38:17
All hard drives fail, but a least with WD you get a 2 year warranty unlike seagates 1 year on their new internal drives. The green series are junk IMO, there is much debate on the operations of the drive, constantly changing the RPM and parking the heads extremely often. Some people say that this "power saving" feature leads to premature failure. Also there is the case of the platter density and vertical magnetic storage and the firmware's ability to reliable correct for the increased error ratio. But like I said, all drives fail, it is only a matter of time. This is why redundancy is your friend.

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March 23, 2013 at 07:33:24
Heat may still be the most common cause of premature drive failure.

Gretti, your eyes are better than mine. The 3rd link above is the Seatools printout. All I see are hash marks. I do see the notation the drive failed the long test.


That said, you still need to run the WD fitness test in order to get an RMA number. You did NOT indicate where the drive was in service. External cases are tight and are ripe for heat failure. Small tight towers can have poor air circulation too.

Going back to Gretti's comment above the aerial density of the platters is a problem IMO. While you get more storage capacity, you get less reliability. Any shift at all in the heads will result in the inability to read previously written data.

I think there is a good chance you can recover data using Easeus Partition Recovery software. The drive may not be suitable for continued use but that is not the current issue.

How about answering my other questions from above. This may help us all to understand what happened in this case.

One other thing to note. Some AMD motherboards with eSATA ports can be treated by Windows as an external drive. This means if you set the parameters for fast instead of secure it is possible to interrupt current to the drive before all data has been written.

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