Raid 10 - question

[MatMoo]

Hi

Been having some funnies with my PC and then of course after a BSOD (Windows 10 system) it couldn't get an OS running, and just seemed to have lots of disk issues. I've now built a new PC and am trying to recover a few bits off it, but seemed to of got stuck at the first hurdle. When I boot the Gigabyte MB sees the 4 disks (And a complete raid 10 with no issues) and doesn't have any issue with the system, so as far as I can tell the raid never crashed etc... But when I use a Live rescue disk (testdisk or photorec) it just shows as 4 separate disks and not 1? As it's a motherboard hardware raid I didn't think I would need to install any other drivers for Unix to see it? or am I missing something (I know a bit of unix but not a heavy user). Any clues?

[cgrenier]

It's a software raid, try the following:

modprobe dm_mod
dmraid -ay
ls -la /dev/mapper/

[MatMoo]

Thank you, using Hirens bootcd and testdisk, instead of a unix live cd and test disk I have got slightly better results.

Code: Select all

TestDisk 6.14-WIP, Data Recovery Utility, September 2012
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sda - 999 GB / 931 GiB - CHS 121576 255 63
Current partition structure:
     Partition                  Start        End    Size in sectors

 1 * HPFS - NTFS              0  32 33    12 223 19     204800 [System Reserved]
 2 P HPFS - NTFS             12 223 20 16317 213 24  261939200
Warning: number of sectors per track mismatches 31 (NTFS) != 63 (HD)
 3 P HPFS - NTFS          16317 213 25 48953  65  8  524288000
 4 P HPFS - NTFS          48953  65  9 121576  61 21 1166688256

*=Primary bootable  P=Primary  L=Logical  E=Extended  D=Deleted
>[Quick Search]  [ Backup ]
                            Try to locate partition

Initial output

Code: Select all

TestDisk 6.14-WIP, Data Recovery Utility, September 2012
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sda - 999 GB / 931 GiB - CHS 121576 255 63
     Partition               Start        End    Size in sectors
>* HPFS - NTFS              0  32 33    12 223 19     204800
 P HPFS - NTFS             12 223 20 16317 213 24  261939200
 P HPFS - NTFS          16317 213 25 48822 181 63  522190848
 L HPFS - NTFS          48953  65  9 121576  61 21 1166688256


Structure: Ok.  Use Up/Down Arrow keys to select partition.
Use Left/Right Arrow keys to CHANGE partition characteristics:
*=Primary bootable  P=Primary  L=Logical  E=Extended  D=Deleted
Keys A: add partition, L: load backup, T: change type, P: list files,
     Enter: to continue

What it finds (Looks about right I had a C OS drive, D Data drive and T Temp data drive)

But if I then try and list any files on the last (L) partition, I get can't open filesystem. Filesystem seems damaged?

PhotoRec does see lots and lots of files, but when I recover the filenames are not correct... so there seems to be hope somewhere!!

After a quick search I then get

Code: Select all

1 * HPFS - NTFS              0  32 33    12 223 19     204800 [System Reserved]
2 P HPFS - NTFS             12 223 20 16317 213 24  261939200
3 P HPFS - NTFS          16317 213 25 48822 181 63  522190848
4 E extended LBA        48822  182 1 121576  93 53 1168787456
5 L HPFS - NTFS          48953  65  9 121576  61 21 1166688256

At this stage I can deeper search or ... write
Do I go for it?

[MatMoo]

Well I seem to be going around in circles I've written the data, rebooted, but the same error occurs and no files can be seen (although photorec can still recover files fine but with the wrong filenames)