WINXP - disk read error - partition problem

[jerovsek]

Hello,

I receive drive from customer that report "disk read error".
I image drive to another drive. Everything was OK and job was done OK. It was strange, that Ghost report that copy 476929MB of data. Drive capacity in ghost 476929MB.
When I connect destination drive to computer, it report same error.
I connect drive to working winxp PC over USB dock. Windows detect drive, show drive, but report disk read error. Size in properties is 0.
Is any good SW solution to fix partition and to image full drive.

[fzabkar]

It was strange, that Ghost report that copy 476929MB of data. Drive capacity in ghost 476929MB.

Is it a 500GB drive? If so, then why should the reported capacity be strange?

[jerovsek]

Hello Mr. Zabkar,

it's 500GB drive.
Sorry. Ghost reported size of source and destination is 476940MB
Copied 476929MB

[fzabkar]

Is the capacity reported differently via the dock compared with a direct SATA connection?

[jerovsek]

Dear Mr. Zabkar,

I suspect, that something is wrong with partition table. It's strange, that Ghost copy full capacyty of data. Like that the disk is full of data. Normally it show data size on disk.

I can recover files, this is not problem.
But I would like to boot from this drive.

Thank you

[fzabkar]

Could we see sector 0?

[jerovsek]

Dear Mr. Zabkar,

sector 0

and sector 63

Thank you very much

[fzabkar]

The boot sector is indicating that the NTFS volume begins at sector 63 (= 0x3F) and has a size of 0x3A380D40 sectors.

The partition table has a single NTFS partition beginning at sector 63 and with a size of 0x3A380D41 sectors.

The partition size is ...

0x3a380d41 x 512 bytes = 476929.657 megabytes

I believe there should be a backup NTFS boot sector at sector 0x0x3A380D7F.

In short I can't see any problem.

[digitalferret]

size of source and destination is 476940MB Copied 476929MB

476940MB - 476929MB = 11MB

XP: could ths be down to Cylinder alignment ie XP default is Cyl, and wont use anything less than a full cylinder? or MebiByte v MegaByte?

On an XP machine at the minute and have around 10-11 MB space at the end of a drive.

K

[fzabkar]

ISTM that 11MB is a little more than 1 cylinder.

255 heads x 63 sectors/track x 512 bytes/sector = 8 225 280 bytes

However, the partition does end on a cylinder boundary.

0x3A380D80 / 255 / 63 = 0xED80

It still doesn't explain the "disc read error" message, unless the dock is shrinking the physical drive.

[jerovsek]

Dear digitalferret and Mr. Zabkar,

there is unpartitioned space around 10MB(as digitalferret mentioned).


In Windows Disk management drive is healthy with correct size, but without file system.