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Windows 7: Bad Sectors

28 Jul 2011   #11
Teerex

Windows 7 x64 Ultimate SP1
 
 

For RMA reasons, if the drive is under guarantee, just use a tool that reads SMART. If the value of Off-line uncorrectable sector count is above zero, RMA the drive and use that SMART value as proof that you are entitled for a new drive, even if you haven't lost any data.

Other names for that value are Uncorrectable Sector Count or Offline Uncorrectable or Off-Line Scan Uncorrectable Sector Count.


My System SpecsSystem Spec
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28 Jul 2011   #12
seekermeister

W7x64 Pro, SuSe 12.1/** W7 x64 Pro, XP MCE
 
 

That sounds like an idea, but I'm somewhat confused about which value to look at. As can be seen in my screenshot of HD Tune, there are several numbers to check, and all of them are above zero, except the threshold, which I assume is a fixed value. Since all 6 of my hard drives have similar numbers, it's seems unlikely that all are defective in exactly the same fashion.


Attached Thumbnails
Bad Sectors-hd-tune.png  
My System SpecsSystem Spec
28 Jul 2011   #13
Teerex

Windows 7 x64 Ultimate SP1
 
 

You have one finally unredeemably bad sector and one pending final evaluation. I say RMA the drive while your guarantee is valid.
My System SpecsSystem Spec
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28 Jul 2011   #14
seekermeister

W7x64 Pro, SuSe 12.1/** W7 x64 Pro, XP MCE
 
 

HD Tune just finished a 6+ hour error scan of the same drive that I posted above, and it gave it a green light all the way...no bad blocks. If there is actually a permanently bad sector, why wouldn't it show up on the scan? I do have a couple of other drives which do show a bad block, regardless of how many times that I scan them.
My System SpecsSystem Spec
28 Jul 2011   #15
Teerex

Windows 7 x64 Ultimate SP1
 
 

I'm telling you what I see in the SMART readings you posted. Your drive's firmware says that one sector is unreadable - permanently. Was it remapped? I don't know. Try other S.M.A.R.T reading tools, SIW for example. The choice is yours, but from what I'm seeing you have a valid case for RMA. That value should be 0, in fact, I have a 4 year old laptop that still has 0 in that category.
My System SpecsSystem Spec
28 Jul 2011   #16
gregrocker

 

How does HDTune stack up to the manufacturer's diagnostics/repair extended CD scan, which supposedly can repair bad sectors?
HD Diagnostic
Hard Drive Diagnostics Tools and Utilities (Storage) - TACKtech Corp

I've returned bad HD's to service for years using maker's repair scan and chkdsk /f.
My System SpecsSystem Spec
29 Jul 2011   #17
seekermeister

W7x64 Pro, SuSe 12.1/** W7 x64 Pro, XP MCE
 
 

I'm familiar with most of what is in the two articles that you linked, but one comment caught my eye on the first one:

Quote:
NOTE: Please run the test on all hard drives attached to your system. This is necessary as a fault in any of the drives can cause problems with the entire system.
Since I do have a couple of drives that I know have some bad sectors, I'm wondering if they could be responsible for some system instability that I have been having, even though neither of them are system drives? In fact, one of them is an external drive, they other one I will have to check, because I can't remember if it is in the PC or HTPC.

Since having installed the new motherboard, CPU & RAM, I haven't been able to boot with either of the two external drives powered up on the PC, it either simply hangs or hangs and starts loudly squawking an alert. I was thinking about replacing the controller card, because the Event Manager contains a series of errors regarding controller errors on drives 5 & 6, which are the two that are external.
My System SpecsSystem Spec
29 Jul 2011   #18
gregrocker

 

Can you post back a screenshot of your maximized Disk Management drive map with listings, with all drives attached and powered up?

I'd also run Disk Check with /f switch on the externals, if necessary from Command Line as shown in tute.
My System SpecsSystem Spec
29 Jul 2011   #19
seekermeister

W7x64 Pro, SuSe 12.1/** W7 x64 Pro, XP MCE
 
 

Here is the Disk Management screenshot. I have only begun having Windows scan the drives, so that is going to take a while.


Attached Thumbnails
Bad Sectors-disk-management.jpg  
My System SpecsSystem Spec
29 Jul 2011   #20
gregrocker

 

What is on Disk0? Ubuntu? It has no System flag so I assume if it's a bootable OS it is booting via C. If there's no OS on Disk0 I would move the Win7 HD there, making sure it remains set to boot first in BIOS setup.

The WDC 2tb external lettered M is not showing on map, but should not be Active. Where this can be a problem is if it has previously been bootsected and is interfering with boot. I would mark it Inactive using Diskpart from Elevated Command Prompt: Partition - Mark as Active (Method Two)

The Disk Check and definitive HD testing is more important at this point.
My System SpecsSystem Spec
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