Thread: TestDisk - Help needed to recover disk & data.

hi
yesterday western digital world book white light nas drive stopped working.
has single 1tb disk.

@ first started getting following error:
volume status - volume 'datavolume' doesn't exist

nas refused boot.

i've removed disk nas , connected ubuntu laptop using sata usb cable.

running test disk returns :

code:

sat apr 20 08:40:11 2013  command line: testdisk    testdisk 6.11, data recovery utility, april 2009  christophe grenier <grenier@cgsecurity.org>  http://www.cgsecurity.org  os: linux, kernel 3.0.0-21-generic (#35-ubuntu smp fri may 25 17:58:20 utc 2012)  compiler: gcc 4.5 - oct 17 2010 20:12:36    ext2fs lib: 1.41.14, ntfs lib: 10:0:0, reiserfs lib: none, ewf lib: none    /dev/sda: lba, hpa, lba48, dco support  /dev/sda: size       312581808 sectors  /dev/sda: user_max   312581808 sectors  /dev/sda: native_max 312581808 sectors  /dev/sda: dco        312581808 sectors    warning: can't size disk /dev/mapper/control - 0 b - chs 1 1 1, sector size=512    hard disk list  disk /dev/sda - 160 gb / 149 gib - chs 19457 255 63, sector size=512 - ata st9160310as  disk /dev/sdb - 1000 gb / 931 gib - chs 121601 255 63, sector size=512 - wdc wd10 ears-00mvwb0    partition table type (auto): efi gpt  disk /dev/sdb - 1000 gb / 931 gib - wdc wd10 ears-00mvwb0  partition table type: efi gpt    analyse disk /dev/sdb - 1000 gb / 931 gib - chs 121601 255 63  hdr_size=92  hdr_lba_self=1  hdr_lba_alt=1953525167 (expected 1953525167)  hdr_lba_start=34  hdr_lba_end=1953525134  hdr_lba_table=2  hdr_entries=128  hdr_entsz=128    check_part_gpt failed partition   1 p ms reserved                   34     262177     262144 [microsoft reserved partition]    current partition structure:  no fat, ntfs, ext2, jfs, reiser, cramfs or xfs marker   1 p ms reserved                   34     262177     262144 [microsoft reserved partition]   1 p ms reserved                   34     262177     262144 [microsoft reserved partition]    search_part()  disk /dev/sdb - 1000 gb / 931 gib - chs 121601 255 63    recover_ext2: s_block_group_nr=0/14, s_mnt_count=100/33, s_blocks_per_group=32768, s_inodes_per_group=16352  recover_ext2: s_blocksize=4096  recover_ext2: s_blocks_count 489968  recover_ext2: part_size 3919744       ms data                    64320    3984063    3919744       ext3 sparse superblock, 2006 mb / 1913 mib    raid magic value @ 247/254/8  raid apparent size: 3919744 sectors  raid chunk size: 0 bytes  md0 md 0.90.0 raid 1: devices 0(8,1)*       linux raid                 64320    3984191    3919872 [md0]       md 0.90.0 raid 1: devices 0(8,1)*, 2006 mb / 1914 mib       linux swap               3984192    4497967     513776       swap2 version 1, 263 mb / 250 mib    raid magic value @ 279/251/37  raid apparent size: 513792 sectors  raid chunk size: 0 bytes  md1 md 0.90.0 raid 1: devices 0(8,2)*       linux raid               3984192    4498111     513920 [md1]       md 0.90.0 raid 1: devices 0(8,2)*, 263 mb / 250 mib    recover_ext2: s_block_group_nr=0/7, s_mnt_count=82/23, s_blocks_per_group=32768, s_inodes_per_group=7728  recover_ext2: s_blocksize=4096  recover_ext2: s_blocks_count 246976  recover_ext2: part_size 1975808       ms data                  4498176    6473983    1975808       ext3 large file sparse superblock, 1011 mb / 964 mib    raid magic value @ 402/251/42  raid apparent size: 1975808 sectors  raid chunk size: 0 bytes  md3 md 0.90.0 raid 1: devices 0(8,3)*       linux raid               4498176    6474111    1975936 [md3]       md 0.90.0 raid 1: devices 0(8,3)*, 1011 mb / 964 mib    raid magic value @ 402/254/45  raid apparent size: 3733254810 sectors  mybookworld:2 md 1.x raid 1 - array slot : 0 (0)       linux raid               6474176 1953524869 1947050694 [mybookworld:2]       md 1.x raid 1 - array slot : 0 (0), 996 gb / 928 gib    results       ms data                    64320    3984063    3919744       ext3 sparse superblock, 2006 mb / 1913 mib       linux raid                 64320    3984191    3919872 [md0]       md 0.90.0 raid 1: devices 0(8,1)*, 2006 mb / 1914 mib       linux swap               3984192    4497967     513776       swap2 version 1, 263 mb / 250 mib       linux raid               3984192    4498111     513920 [md1]       md 0.90.0 raid 1: devices 0(8,2)*, 263 mb / 250 mib       ms data                  4498176    6473983    1975808       ext3 large file sparse superblock, 1011 mb / 964 mib       linux raid               4498176    6474111    1975936 [md3]       md 0.90.0 raid 1: devices 0(8,3)*, 1011 mb / 964 mib     p linux raid               6474176 1953524869 1947050694 [mybookworld:2]       md 1.x raid 1 - array slot : 0 (0), 996 gb / 928 gib

when run testdisk results table shows entries d in front of them, apart last 1 has ap

please advise means , more importantly if data recoverable , how ??

many

any 1 advise ?

need save data

thanks.

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