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8GB Flash Voyager - Failing?


therube

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8GB Flash Voyager - Failing?

 

Hi.

 

I purchased an cmfusb2.0-8gb on 6/30/2008 (from Buy.com).

 

It has worked without incident - until tonight.

 

As I was copying files off of the drive, it failed.

 

Have performed a number of operations since, but at this point, I do not have confidence in the drive, nor in any files that I have been able to copy from it.

 

When it first failed, I Safely Removed, removed, reinserted, then ran a CHKDSK.

The type of the file system is FAT32.
Volume CORSAIR created 02/13/2010 09:53 PM
Volume Serial Number is 551E-1C4D
Windows is verifying files and folders...
0 percent completed.
...
100 percent completed.                  

File and folder verification is complete.
Convert lost chains to files (Y/N)? n
1587352 KB of free disk space would be added.
Windows found problems with the file system.
Run CHKDSK with the /F (fix) option to correct these.
   7,848,956 KB total disk space.
          12 KB in 1 hidden files.
         632 KB in 138 folders.
   6,227,104 KB in 2,210 files.
      33,848 KB are available.

       4,096 bytes in each allocation unit.
   1,962,239 total allocation units on disk.
       8,462 allocation units available on disk.

Figured I may as well copy what I could from CORSAIR to HDD.

Once I did that, I compared the copy & noted some failures.

 

Then I proceeded to run CHKDSK /F.

C:\TMP>CHKDSK F: /F
The type of the file system is FAT32.
Volume CORSAIR created 02/13/2010 09:53 PM
Volume Serial Number is 551E-1C4D
Windows is verifying files and folders...
Unrecoverable error in folder \_MUSAK\MSOffice\Excel.en-us.
Convert folder to file (Y/N)?

Removing nonvalid long folder entry from \LIB...
Removing trailing folder entries from \LIB
File and folder verification is complete.
Convert lost chains to files (Y/N)?

1602664 KB in 263 recovered files.
Windows has made corrections to the file system.
   7,848,956 KB total disk space.
          12 KB in 1 hidden files.
         640 KB in 138 folders.
   7,814,460 KB in 2,470 files.
      33,836 KB are available.

       4,096 bytes in each allocation unit.
   1,962,239 total allocation units on disk.
       8,459 allocation units available on disk.

C:\TMP>

FOUND.000  1,641,127,936 bytes in 263 files

And as you can see what "FOUND.000" came up with.

 

I then ran a CHKDSK /R

C:\TMP>CHKDSK F: /R
The type of the file system is FAT32.
Volume CORSAIR created 02/13/2010 09:53 PM
Volume Serial Number is 551E-1C4D
Windows is verifying files and folders...
File and folder verification is complete.
Windows is verifying free space...
Free space verification is complete.
Windows has checked the file system and found no problems.
   7,848,956 KB total disk space.
          24 KB in 2 hidden files.
         628 KB in 137 folders.
   7,814,460 KB in 2,470 files.
      33,836 KB are available.

       4,096 bytes in each allocation unit.
   1,962,239 total allocation units on disk.
       8,459 allocation units available on disk.

C:\TMP>

At that point, it showed no errors.

 

Of the files that failed the compare, I copied (the invalid copy of) one particular file ("dotnetfx35SP1.exe", valid MD5: d481cda2625d9dd2731a00f482484d86) from CORSAIR to HDD.

 

Deleted the copy from CORSAIR.

Copied (a valid copy) from my HDD to CORSAIR anew.

 

At ~89% copied, 208 MB of 231 MB it errored: "Windows - delayed write failed".

 

At that point CORSAIR was no longer there.

 

Safely removed. Removed. Reinstalled.

 

F: (CORSAIR) is there.

 

Verified the failed copy anyway. At ~73% compare started failing, showing a bunch of nuls.

 

Once again copied from HDD to CORSAIR.

This time it completes & verifies.

 

Tried it again.

 

Copied from CORSAIR to HDD.

Completes & verifies.

Delete from CORSAIR.

Copy from HDD to CORSAIR.

Completes & verifies.

 

 

So ... you tell me?

 

 

The data on the drive is not as important as my confidence in the accuracy of the data (as I do have backups of it elsewhere).

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I do not have confidence in the drive, nor in any files that I have been able to copy from it.

Certainly not all the files are invalid. Some would be relatively easy to ascertain; archive files (ARJ, RAR, ZIP) as you can verify their integrity. Some you can "visually" verify; pictures with obvious artifacts, or music files that don't play or don't play fully. Installer files (like dotnetfx above) can only be verified by comparing to known valid copies. Or (sometime down the road) by their failure when you attempted an install.

 

Suffice it to say, in what I have tested so far, not all are valid.

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Volume CORSAIR created 02/13/2010 09:53 PM

Thats a strange date. Cause I certainly did not "create" (as in like format or anything like that - as I have never done such at all) on that day. Wonder what happened at that time? (Suppose a CHKDSK would have been a possibility?)

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Appeared to work correctly yesterday for the few files I copied to the drive.

 

Today though, I copied one file - complete with nulls.

Shortly thereafter, the drive disappeared again. Went through the Safely remove, remove, reinsert routine.

 

http://i41.tinypic.com/2iawdua.jpg

 

http://i42.tinypic.com/23w5ro1.jpg

 

 

Renamed the bad file to name-BAD, then tried once more, & it did successfully copy to CORSAIR.

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Now on a different computer.

 

Copied a set of files from HDD to CORSAIR.

Verified, & of 45 MB in 34 files, 2 failed verification.

 

Went to attempt those two again, Windows Delayed Write Failed, & finally the drive disappeared.

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  • 2 weeks later...

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