HDD issue (bad sectors, corrupted files)

this thing with hard disks is getting annoying…
few months ago i had one WD 2TB HDD (2 years old) full o bad sectors, it took me whole month to recover files from it (cca 95 %) returned to seller and as warranty was ok they gave me new one , bought NEW WD HDD with 3TB, and moved all saved files there…
now after neither 6 months in HDD sentinel i saw that “health” of NEW HDD is decreasing very fast… but all seamed ok.
suddenly in vuze, all files i was seeding from that disk returned “disk redundancy error”. i tried chkdsk and “no errors were found” HDD sentinel reported “just” 153 bad sectors.
chkdsk shows all fine, but hen i try chkdsk /r it is stucked on 31/25387 files

all files seams to be there but for some reason 99% of files are not readable. 99 % of movies don’t have length specified. i tried “hdd regenerator” --> all fine
chkdsk all fine (accept /r command)…
dont know what to do and how to save almost 3 TB of files…
any help would be highly appreciated…

sounds like you should send it in and get a replacement. I dunno when its an applicable RMA (e.g. how defective does it have to be?), but with over 150 sectors after nearly 6 months, you won’t get much more time out of it, so go ahead and contact them

if WD refuses with RMA (i doubt that!), you can check out spinrite. its expensive though, so probably not worth it. and don’t you pirate it!

P.S. random access caused by vuze and other bittorrent clients will shorten a HDDs lifespan btw :stuck_out_tongue:

no problem for warranty, but i just lost 3 TB of files…

almost all movies are unreadable… and strange thing, i open movie1 and its playing movie5 ???

there is something wrong with index files?

well, its not like you won’t be able to grab them again, so sorry for my lack of sympathy…

depending on your file system, the index and actual information about the location of the files (and their chunks in case of fragmentation) are always susceptible to corruption. I don’t know how NTFS actually works, but its theoretically possible.

another idea is, that relocating sectors failed and some stuff got overwritten and whatever and one movie turned into two half movies. i dunno. its possible, but if you are right about the degree of fragmentation, recovering it is a lost cause.

but, since you use bt, you can just rescan the files (AFTER copying it to a properly working drive ofc) and just redownload the errornous chunks. might save you a few gigs?

care to post your current smart log of the defective drive? I’m kinda interested in hard numbers of such a crudely failing drive

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My 500gb internal hdd is not detecting the bios, i need my full data on the drive

smart

i tried to move corrupted fils to new hdd, but no luck, files are also unreadable even there… could the problem be that for some reason even speedfan see disk as 2TB, but windows and bios see it as 3 TB?

if WD refuses with RMA (i doubt that!), you can check out spinrite. its expensive though, so probably not worth it. and don’t you pirate it!

 

I am willing to pay 89 $ if spinrite is solution for problems and to save all data…

1,Raw Read Error Rate,51,131,76,OK,00000000F6AD,0,Enabled
3,Spin Up Time,21,196,183,OK,00000000142E,0,Enabled
4,Start/Stop Count,0,100,100,OK (Always passing),000000000025,0,Enabled
5,Reallocated Sectors Count,140,195,195,OK,000000000099,0,Enabled
7,Seek Error Rate,0,100,253,OK (Always passing),000000000000,0,Enabled
9,Power On Time Count,0,95,95,OK (Always passing),000000001006,0,Enabled
10,Spin Retry Count,0,100,253,OK (Always passing),000000000000,0,Enabled
11,Drive Calibration Retry Count,0,100,253,OK (Always passing),000000000000,0,Enabled
12,Drive Power Cycle Count,0,100,100,OK (Always passing),000000000022,0,Enabled
192,Power off Retract Cycle Count,0,200,200,OK (Always passing),00000000001C,0,Enabled
193,Load/Unload Cycle Count,0,200,200,OK (Always passing),000000000008,0,Enabled
194,Disk Temperature,0,105,103,OK (Always passing),00000000002D,0,Enabled
196,Reallocation Event Count,0,67,67,OK (Always passing),000000000085,0,Enabled
197,Current Pending Sector Count,0,199,199,OK (Always passing),00000000033A,0,Enabled
198,Off-Line Uncorrectable Sector Count,0,100,253,OK (Always passing),000000000000,0,Enabled
199,Ultra ATA CRC Error Count,0,200,200,OK (Always passing),000000000000,0,Enabled
200,Write Error Rate,0,100,253,OK (Always passing),000000000000,0,Enabled

C:\Users\ >chkdsk D:
The type of the file system is NTFS.
Volume label is New Volume.

WARNING!  F parameter not specified.
Running CHKDSK in read-only mode.

CHKDSK is verifying files (stage 1 of 3)…
  23296 file records processed.
File verification completed.
  5736 large file records processed.
  0 bad file records processed.
  0 EA records processed.
  0 reparse records processed.
CHKDSK is verifying indexes (stage 2 of 3)…
  24890 index entries processed.
Index verification completed.
  0 unindexed files scanned.
  0 unindexed files recovered.
CHKDSK is verifying security descriptors (stage 3 of 3)…
  23296 file SDs/SIDs processed.
Security descriptor verification completed.
  798 data files processed.
CHKDSK is verifying Usn Journal…
  8660008 USN bytes processed.
Usn Journal verification completed.
Windows has checked the file system and found no problems.

   2861458 MB total disk space.
   2846386 MB in 16401 files.
      7116 KB in 799 indexes.
         0 KB in bad sectors.
    187923 KB in use by the system.
     65536 KB occupied by the log file.
  15239376 KB available on disk.

      4096 bytes in each allocation unit.
 732533503 total allocation units on disk.
   3809844 allocation units available on disk.

im not familiar with speedfan, so i dunno about that.

i looked at your smart log and here are my findings and my conclusion:

the drive has major issues reading various sectors (Raw Read Error Rate). Reading a sector on the drive was unsuccessful over 63149 times.

this causes the sectors that couldnt be read to be rechecked. if the sector can be read at a later time, it won’t be remapped.  the number of these problematic sectors is already at 826 (Current Pending Sector Count). if its still unreadable the sector will be reallocated. this already happened 153 times (Reallocated Sectors Count).

I don’t think spinrite can fix this, since I do not think that the sectors itself are the issue, but the head reading and writing the data. but you can stll try it and if it didnt do anything, you can get your money back probably:

https://www.grc.com/cs/licenseinfo.htm

either way, if you want to backup the data, i would first mirror the drive and then sort it out. if you dont have another drive that can fit those 3TB, recovering wont be that convenient…

cold one of problems be that most of programs for recovery also see HDD as 2, and NOT 3 TB HDD?

i use linux for recovery in case of a failure and linux has no issue with 2TB or larger drives and partitions. im not familiar with speedfan either, so i dunno about the compatibility of that software. as for other recovery software: just check if 2TB and more are fully supported. if it doesnt say, ask the creator.

using software that only recognizes 2TB out of 3TB will not work:

files tend to be fragmented, thus aren’t always completely located in the first 2TB. so only portions would be recovered, which is unacceptable.

i used linux live cd  ( Hiren’s BootCD)for some troubles with hdd before (hdat2 error)…

but right now it seams to me that files are in theory ok, but indexing part is corrupted… is there any tool that can fix that… rescan file by file? linux is also ok

right now i am testing drive vith easeUs data recovery…

for new situations i havent been into either, i only know google:

http://lmgtfy.com/?q=recover+ntfs+index

something is strange here… all seams fine but 99 % of files are corrupt

Test Option: QUICK TEST
Model Number: WDC WD30EFRX-68AX9N0
Unit Serial Number: WD-Deleted
Firmware Number: 80.00A80
Capacity: 2000.42 GB
SMART Status: PASS
Test Result: PASS
Test Time: 20:11:30, July 27, 2013

Test Option: EXTENDED TEST
Model Number: WDC WD30EFRX-68AX9N0
Unit Serial Number: WD-Deleted
Firmware Number: 80.00A80
Capacity: 2000.42 GB
SMART Status: PASS
Test Result: PASS
Test Time: 11:07:17, July 28, 2013

check the photo:

disk.png

this seams to be the problem

windows recognize disk as 3tb, but on some low level it is recognized as 2tb drive.

browsed the boards, but no real solution, any idea?

 tried as internal disk and in external enclousure

Have you contacted WD support? I strongly suggest that you do. I can’t explain the results you are getting, but the engineers might pick something up. You’ve certainly run tests that I would have.

I had experience with drives developing bad sectors. WD replaced the first one, and then the replacement started doing the same thing. WD replaced that one, too. I finally realized that a bad SATA cable was the cause of the problems. Once I put a new cable on, the problems stopped. Have you tried a different cable?

I don’t know if this relates in any way to what you are experiencing. If you have not, I would try a new cable. I would also run your test results by WD support.

i conntact wd support 72 hours ago and still no answer.

found out on the end what is the problem… browsed the boards, but no real answer.

in gdisk i get this error

Partition table scan:
  MBR: protective
  BSD: not present
  APM: not present
  GPT: present

Found valid GPT with protective MBR; using GPT.

Warning! Secondary partition table overlaps the last partition by
14898564 blocks!
You will need to delete this partition or resize it in another utility.

Perhaps this would help in the “resize” department.

http://gparted.sourceforge.net/livecd.php

That diagnosis looks pretty ugly. I hope you can rescue your data.

Best of luck,

k

EDIT: Here is another possibility-

http://sourceforge.net/projects/systemrescuecd/files/latest/download?source=recommended

ego2st wrote:

i conntact wd support 72 hours ago and still no answer.

found out on the end what is the problem… browsed the boards, but no real answer.

in gdisk i get this error

Partition table scan:
MBR: protective
BSD: not present
APM: not present
GPT: present

Found valid GPT with protective MBR; using GPT.

Warning! Secondary partition table overlaps the last partition by
14898564 blocks!
You will need to delete this partition or resize it in another utility.

That’s probably the problem right there.  If you’re using MBR at all it won’t see 3TB.  The drive has to be formatted in GPT in order to recognize 3TB in Windows.  Otherwise, you may get this kind of corruption.

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Would it be practical/possible for the OP to delete the MBR partition? I’m not sure what it means by “MBR: protective”.

See this link for discussion of MBR: protective-

http://rodsbooks.com/gdisk/hybrid.html

It is not clear from the “Partition table scan” that the OP posted, which partition is secondary, though it seems that it would be the MBR. From the linked article:

“As noted on other pages in this document, a conventional GPT disk contains a protective MBR with a single partition, of type 0xEE (EFI GPT), defined. This partition spans the entire size of the disk or 2 TiB, whichever is smaller. The intent is to keep GPT-unaware OSes and utilities from trying to modify the disk.”

What this suggests to me is that a “GPT-unaware OS (or) utility” modified the Protective MBR, or its relationship to the GPT, in some fashion. It does seem that there is a reason for the two partition schemes to cohabit on the same disk.

Kieren wrote:

Would it be practical/possible for the OP to delete the MBR partition? I’m not sure what it means by “MBR: protective”.

 

See this link for discussion of MBR: protective-

http://rodsbooks.com/gdisk/hybrid.html

 

It is not clear from the “Partition table scan” that the OP posted, which partition is secondary, though it seems that it would be the MBR. From the linked article:

 

“As noted on other pages in this document, a conventional GPT disk contains a protective MBR with a single partition, of type 0xEE (EFI GPT), defined. This partition spans the entire size of the disk or 2 TiB, whichever is smaller. The intent is to keep GPT-unaware OSes and utilities from trying to modify the disk.”

 

What this suggests to me is that a “GPT-unaware OS (or) utility” modified the Protective MBR, or its relationship to the GPT, in some fashion. It does seem that there is a reason for the two partition schemes to cohabit on the same disk.

so… i booted up from systemrescue cd, and in gparted i got

model: wd3068ax9n0

size: 1.82 TB

partition table: unrecognized

heads: 255

sectors/tracks: 63

cylinders: 243204

total sectors: 3907073134

sector size:512

now playing with test disk to search lost partiton table…

questions:

if i format disk with gpt partition table from gparted, what wil happen, will i loose all data, or (fingers crossed) will restore everything back to normal(with all data back)?

why only windows recognize disk as 3TB drive?  i remebered before even in bios all was ok, now only windows 7 (in my case) recognize disk as 3TB drive, but 99% of data is “corrupted” (all files and folders are visible but not working?

in your post you guess that for some reason mbr and gpt partition must be there, but if i only use this disk in windows 7, if i put JUST gpt will it work (i don’t care for mbr) .

ps wd support informed me to give them my phone number so they will call me, i guess that this kind of problem won’t be that easy to fix with phone call :mansad: