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I accedently deleted my backup drive partition

Posted: 08 Mar 2012, 00:57
by AnimeDan
ok i moved all my files over to my back up 3tb drive so i could reformat the drive thoes files were on, but after formating my other drive, i accadently deleted the Backup 3tb drive that had all my files that i was gonna move back over.

ok i tried going threw the steps and i got to the part where "Quick Search for partitions" AND then i chose [write] then it said error cant write

with above that saying
Warning: Incorrect number of heads/cylinder 1 (NTFS) != 255 (HD)
Warning: Incorrect number of sectors per track 1 (NTFS) != 63 (HD)

when the drive was in perfect working order except that i deleted the partition in disk management

Re: I accedently deleted my backup drive partition

Posted: 08 Mar 2012, 08:03
by cgrenier
If you are running TestDisk from Mac OS X, you need to umount the other partitions/eject the disk to be able to write a new partition table.

Re: I accedently deleted my backup drive partition

Posted: 08 Mar 2012, 09:44
by AnimeDan
cgrenier wrote:If you are running TestDisk from Mac OS X, you need to umount the other partitions/eject the disk to be able to write a new partition table.
umm im running it on windows 7 64bit not a mac

Re: I accedently deleted my backup drive partition

Posted: 08 Mar 2012, 18:23
by Fiona
Intel MAC uses EFI GPT.
Your disk capacity is larger than 2,2 TB, that's why it uses the same Partition table type EFI GPT.
Results can look pretty similar.

Please don't use the TestDisk 64-bit-Version but 32-bit.

Please at disk selection select your Disk and not a drive.
When you see partition table type, choose EFI GPT because you have a 3 TB disk!
Run Analyse and Quick Search.
Analyse displayes your current partition table and Quick Search provides first results.
I'll need infos from Analyse about your current partition structur and Quick Search.
Screens during the scan (Quick Search)doesn't help as much.
Only if I'll require it.
But important after Quick Search are the sesults.
I'll need these infos also.
If no partition is found, run Deeper Search.

Fiona

Re: I accedently deleted my backup drive partition

Posted: 08 Mar 2012, 20:08
by AnimeDan
Fiona wrote:Please don't use the TestDisk 64-bit-Version but 32-bit.
Fiona
i just used the version that you get from here http://www.cgsecurity.org/wiki/TestDisk_Download


My Drive that im trying to recover partition for is:

3TB WD My Book Essential usb 3.0 External Hardrive
Formatted NTFS for xp/vista/7

P/N: WDBACW0030HBK-01
Model: WDBACW0030HBK-NESN

*note* it is a backup drive only, it is not for a OS



Disk Selection

Image


the Analyse

Image


the Quick Search

Image


Pressing Enter to continue

Image

Re: I accedently deleted my backup drive partition

Posted: 08 Mar 2012, 21:42
by Fiona
Your current partition table looks wrong!
It has an invalid signature.
But after Quick Search it's displayed correctly!
http://img220.imageshack.us/img220/5766 ... search.png
Please press p to list your data!
Do you see your data or an error message?

If you see your data, you can recover your partition.
Press enter to proceed.
You'll be at this screen;
http://img193.imageshack.us/img193/8688 ... quicks.png
Check Write and press enter and y.
Close testdisk using quit.
Restart your computer.

Fiona

Re: I accedently deleted my backup drive partition

Posted: 08 Mar 2012, 22:01
by AnimeDan
well i have to tell u something, when i pressed write and got the write error message i went back in to the testdisk and showed my [p] data list and while keeping it open on that page I then clicked refresh in disk management and for some reason my partition is back


is that normal when getting a write error?
if not can you tell me what i need to do even thoue i have my drive partition back, since it came back when even it said write error with the p list open should i be worried about backing up data on it fearing that it will dissapear 1 day?

Re: I accedently deleted my backup drive partition

Posted: 08 Mar 2012, 22:26
by Fiona
then clicked refresh in disk management and for some reason my partition is back
Nice to read it! 8-)
Looks like that Write worked, despite that error message?
Well, I've seen this message during the last couple of days a few times on EFI GPT.
Thanks for your information and should be forwarded. :)
should i be worried about backing up data on it fearing that it will dissapear 1 day?
Until yet, I can't judge that issue at all.
Normally, TestDisk works stable!
Check your disk using crystal disk info and run manufacturer diagnose tool.
If it's in a good shape, use it!

Fiona

Re: I accedently deleted my backup drive partition

Posted: 08 Mar 2012, 22:54
by AnimeDan
Fiona wrote:
then clicked refresh in disk management and for some reason my partition is back
Nice to read it! 8-)
Looks like that Write worked, despite that error message?
Well, I've seen this message during the last couple of days a few times on EFI GPT.
Thanks for your information and should be forwarded. :)

It's allways a good idea to have a backup.
Until yet, I can't judge that issue at all.
Normally, TestDisk works stable!
Check you disk using crystal disk info and run manufacturer diagnose tool.
If it's in a good shape, use it!

Fiona
where would I get the Crystal disk info and manufacturer diagnose tools? so i dont run in to bogus software

Re: I accedently deleted my backup drive partition

Posted: 08 Mar 2012, 23:01
by Fiona
You can find Crystal Disk Info here;
http://crystalmark.info/?lang=en
WD My Book Tools are available here;
http://support.wdc.com/product/download ... =1&lang=en

Fiona