HARD DISK " come azzerare bad sectors "

SI! Esatto! Così sembra, anzi, adesso ho azzerato con l'editor anche il settore 0 e il settore 1.. il risultato è che anche il begin test di WD risulta FAILED.. invece di migliorare vado alla deriva!

In ogni caso il disco non è fisicamente danneggiato, ci posso giocare una birra!!!

Ne avvale l'ipotesi che non ho mai sentito la testina battere o il piatto riavviarsi!!!

Chi... mi insegna O... mi suggerisce un modo di editare quella famosa variabile del disco rigido?

In rete, cercando  in google AZZERARE $BADCLUS , ho trovato un informazione, ma non riesco ad editare il metafile (a dirla tutta non sò nemmeno cosè un metafile) .

Vi riporto qui sotto una parte del tread letto (non sò se è lecito, o se devo citare la fonte)...

Hi. I have windows XP system on two partitions of a 120mg Western Digital

Sata drive. Yesterday I had some program lock up, and I rebooted and ran

chkdsk /f

on the c:\ partition where it came back with 4kb in bad sectors with no

other unusual event viewer error messages, where there had been or bad

sectors before (the drive is about 6 months old). I ran the Western Digital

Data Lifeguard program from another IDE drive running Win2k server

in the same computer, and it found some error in the thorough scan, and

repaired it. Rerunning chkdsk /r still shows the 4kb bad sector. Running

the Western Digital Data Lifeguard a second time shows NO ERRORS.

After long research I found that the chkdsk /r does not reallocate bad

blocks that weren't really bad, it just looks for NEw bad blocks. I have no

strong evidence right now that the drive is really going south.

I have the capability using the r-studio program to edit the

$BadClus metafile holding the bad sector entry, but have no idea exactly

what to do in the hex code there. There are 4 attributes, 0x10

$Standard_Information, 0x30 $File_Name, 0x80 $DATA [Unnamed] , and 0x80

$DATA $Bad

I want to clear the bad sector from being bad then rerun

chkdsk /r to see if it redetects it as bad.

BuonGiorno Mr. Leuzzi, premetto che non ho mai scritto online, su bacheche, post, tread..

per me questa è una tra le prime , se dovessi omettere qualche netiquete rendetemelo noto, grazie.

qui sotto le info del programma che ho usato per i test:

//=============================================================================

//

// Copyright 1999-2010 Western Digital Corporation

//

// RESTRICTED RIGHTS LEGEND

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//

// Use, duplication or disclosure by any commercial industry (public

// or private), private individual or by any Government Agency without

// an expressed written consent of release from Western Digital

// Corporation is subject to restriction set forth in paragraph

// (b)(3)(B) of the Rights in Technical Data and Computer Software

// clause in DAR 7-104.9(a).

//

// Manufacturer is:

//

// Western Digital Corporation

//   20511 Lake Forest Dr.

//   Lake Forest, CA 92630

//   1-800-275-4932

//=============================================================================

Western Digital Data LifeGuard Diagnostics - WinDlg (DLGDIAG for Windows)

PROGRAM DESCRIPTION:

This MODULE of the Data Lifeguard Tools program searches for and verifies

the status of specific Western Digital drives. By accessing the Data Lifeguard

information stored on the hard drive, the program is able to quickly and

efficiently verify the status of the drive. If any errors are logged or found,

it provides an option to return the drive to a defect-free status through an

extended test or repair option. WinDlg runs under Win9x/Me/NT/W2K/XP/Vista/Win7

and offers several options for verifying the defect-free status of your hard

drive.

QUICK TEST:

The Quick Test is designed to intelligently gather and verify all of the Data

Lifeguard information contained on the drive. The Quick Test can determine with

a high level of confidence that a drive is defect-free in a short amount of time.

For maximum confidence, the Extended Test is recommended. The Quick Test option

may not be available on earlier IDE drives, SCSI drives and external drives.

The Quick Test checks the SMART status and performs SMART QUICK Drive Self-Test

if the SMART feature is supported by the drive and detected by the program. 

Otherwise, it performs a partial disk scan test - 10% in the OD (Outer Diameter)

zone and 10% in the ID (Inner Diameter) zone.

EXTENDED TEST:

For most computers, the WinDlg Extended Test takes anywhere from 30 minutes to many

hours to test one drive. Larger drives take longer to test. The performance of the

computer also affects the test time. If a bad sector is detected under Win9x/Me

environments, the test may stop responding for a few minutes and then continue. By

default, this is a non-destructive test. The test is destructive only when the user

selects the repair function and bad sectors are detected.

The EXTENDED Test scans the entire disk media from LBA #0 to the maximum LBA.  When

a bad sector is detected, the user is prompted to repair it. If the user chooses to

repair, the program writes zeros to the bad sector which invokes the drive firmware

to relocate the bad sector and return the sector to a defect-free state.

WRITE ZEROS:

This option can be used to erase operating systems and file systems. QUICK ERASE

writes zeroes to the first and last million sectors. FULL ERASE writes zeroes to

the entire drive and may take hours to complete (depending on the drive size and

system performance).

VIEW TEST RESULT:

This function displays the current test results. Test results are overwritten once

a new test is started.

TO RUN THE PROGRAM:

BACK UP DATA:

Before running DLGDIAG, it is recommended that users back up all data for all hard

drives.  This utility may write to the drive during the re-certification process. 

As with all utilities that write to a drive, it is recommended that you back up your

data before proceeding.

TO TEST EACH DRIVE:

Double click on one of the physical drives in the list to display the test menu.

Select a test and click the Start button to start the test. At the end of the test,

a status is displayed. For the EXTENDED TEST, if bad sectors are detected, a repair

option is provided to fix any correctable errors. However, data stored in the

bad sectors will be lost, thus this function must be used very cautiously. WD also

offers a DOS version of DLGDIAG which provides a better repair function. It can be

downloaded from WD's web site and used to repair certain errors that cannot be

corrected in the Windows environment.

The drive's SMART status is queried and displayed when the program starts. The SMART

status can be PASS, FAIL or Not Available. Click on the SMART status column to view

detailed SMART disk information.

Hai usato i software WD?

http://support.wdc.com/product/download.asp?modelno=WD6400AAKS&x=13&y=3

Ciao