HELP! Accidental Disk Utility Partition on Mac OS 10.6.8

How to use TestDisk to recover lost partition
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colinmquinn
Posts: 2
Joined: 26 Mar 2012, 22:01

HELP! Accidental Disk Utility Partition on Mac OS 10.6.8

#1 Postby colinmquinn » 26 Mar 2012, 23:25

I was cleaning off some WD caviar black drives to create a new Raid5 last night and accidentally clicked partition on the wrong drive in disk utility. I repartitioned my 8x1TB Maxx Digital Raid Tower. It's a hardware raid (Areca dual SAS card). The data is all still there and the hardware is all in perfect working order. I just need to revert the filesystem. But I'm freaking out and am not totally confident what to do exactly.
I can't get disktest to show me my old partition name, i can however see the files in media recovery software.
I am confident that disktest will be successful if I can get some help with punching the right settings.
My LIFE is on my raid, and the directory structure and file names are super important.

There are 8 WD Caviar Black drives in the HW raid5 tower connected via dual SAS to an Areca card.
So far the only thing I have done is reformatted the drive with a new name.
This is my system profiler info:
SCSI Logical Unit @ 0:

Capacity: 7 TB (6,999,999,512,576 bytes)
SCSI Logical Unit Number: 0
Manufacturer: MAXX
Model: MAXX1221-VOL#00
Revision: R001
Removable Media: Yes
Detachable Drive: No
BSD Name: disk6
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Not Supported

I won't be able to sleep, or live until I get this back the way it was.
Why doesn't the Undo button in disk utility do anything anyway. It's inevitable for mess ups.
:shock:

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remy
Posts: 457
Joined: 25 Mar 2012, 10:21
Location: Strasbourg, France.
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Re: HELP! Accidental Disk Utility Partition on Mac OS 10.6.8

#2 Postby remy » 13 Apr 2012, 10:06

"reformatted" : Do you mean you create another partition table, but don't create another filesystem or do you already have created another filesystem over the previous one ?

In first case, should be solved by testdisk by scanning your raid volume, with a GPT table format.
J'ai pour habitude d'aller au bout de l'aide que j'apporte. Si vous pensez que je vous ai abandonné, et que je ne l'ai pas fait explicitement, c'est que votre message est enfoui avec d'autres. Relancez-moi (modérément) par mail.


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