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Corrupted RAID 0 NAS Drives

eugenelee0420
By eugenelee0420
in Troubleshooting
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Two 1TB hard disks in my Buffalo NAS had bad sectors, and I am trying to recover the data.
 
They're set up in RAID 0, and I do not have backups of most data inside.
(Please don't blame me of not backing up or putting the drives in RAID 0. I don't even know RAID existed back when I set up the NAS, RAID 0 was the default config.)
 
I have a lot of information to cover, sorry if they're a bit unorganized.
Also sorry for bad English and little technical knowledge :P
 
 
NAS
Buffalo LS-WVL Series (LinkStation Pro Duo)
Status LED code of description "Many defective sectors have been found." was showing when the drives failed.

Link to online manual (pdf)
 
RAID Config
2 Drives, 1TB each
RAID 0 (Stripe)
Other details such as block size and start sectors are unknown, the NAS does not specify.
 
Drives
Brand: Seagate (both)
Firmware: JC45

File system unknown (RAW shown in disk management)

Drive 1 have critical level of "Reallocated Sector Count" (See SMART results for details)

The disks are currently plugged into my PC, which is running Windows 10 Home 64-bit

S.M.A.R.T. check results:

m7dOq.jpg

 

 

m7dRd.jpg

 

 

 

 

Disk 1 and 2 are the NAS drives, obviously they have identical partitions, but I can't rebuild the RAID array.

m7e7t.png

 

 

Recovery Attempts

RAID Reconstructor: Results not significant (might be wrong parameters provided)

Disk Investigator: Refuse to show anything meaningful, recognize the drives as NTFS, shows windows read error

Model : ST31000524ASFirmware : JC45Serial Number : 5VPA1RP0Disk Size : 1000.2 GB (8.4/137.4/1000.2/1000.2)Buffer Size : UnknownQueue Depth : 32# of Sectors : 1953525168Rotation Rate : 7200 RPMInterface : Serial ATAMajor Version : ATA8-ACSMinor Version : ATA8-ACS version 4Transfer Mode : SATA/600 | SATA/600Power On Hours : 12545 hoursPower On Count : 136 countTemperature : 44 C (111 F)Health Status : BadFeatures : S.M.A.R.T., AAM, 48bit LBA, NCQAPM Level : ----AAM Level : D0D0h [ON]-- S.M.A.R.T. --------------------------------------------------------------ID Cur Wor Thr RawValues(6) Attribute Name01 107 _76 __6 00000C137401 Read Error Rate03 100 100 __0 000000000000 Spin-Up Time04 100 100 _20 000000000039 Start/Stop Count05 __5 __5 _36 000000000F51 Reallocated Sectors Count07 _60 _60 _30 000000115F5B Seek Error Rate09 _86 _86 __0 000000003101 Power-On Hours0A 100 100 _97 000000000000 Spin Retry Count0C 100 100 _20 000000000088 Power Cycle CountB7 100 100 __0 000000000000 㸨B8 100 100 _99 000000000000 End-to-End ErrorBB __1 __1 __0 000000000484 Reported Uncorrectable ErrorsBC 100 _96 __0 001C001C001C Command TimeoutBD 100 100 __0 000000000000 High Fly WritesBE _56 _40 _45 00402D19002C Airflow TemperatureC2 _44 _60 __0 00140000002C TemperatureC3 _50 _33 __0 00000C137401 Hardware ECC recoveredC5 100 100 __0 000000000009 Current Pending Sector CountC6 100 100 __0 000000000009 Uncorrectable Sector CountC7 200 200 __0 000000000000 UltraDMA CRC Error CountF0 100 253 __0 8CD40000036A Head Flying HoursF1 100 253 __0 000004B525F2 Total Host WritesF2 100 253 __0 0000C77E3F37 Total Host Reads-- IDENTIFY_DEVICE ---------------------------------------------------------0 1 2 3 4 5 6 7 8 9000: 0C5A 3FFF C837 0010 0000 0000 003F 0000 0000 0000 .Z?..7.......?......010: 2020 2020 2020 2020 2020 2020 3556 5041 3152 5030 5VPA1RP0020: 0000 0000 0004 4A43 3435 2020 2020 5354 3331 3030 ......JC45 ST3100030: 3035 3234 4153 2020 2020 2020 2020 2020 2020 2020 0524AS040: 2020 2020 2020 2020 2020 2020 2020 8010 0000 2F00 ..../.050: 4000 0200 0200 0007 3FFF 0010 003F FC10 00FB 0110 @.......?....?......060: FFFF 0FFF 0000 0007 0003 0078 0078 0078 0078 0000 ...........x.x.x.x..070: 0000 0000 0000 0000 0000 001F 850E 0006 0048 0040 .................H.@080: 01F0 0029 346B 7F01 4163 3469 BE01 4163 017F 0052 ...)4k..Ac4i..Ac...R090: 0052 0000 FFFE 0000 D0D0 0000 0000 0000 0000 0000 .R..................100: 6DB0 7470 0000 0000 0000 0000 0000 0000 5000 C500 m.tp............P...110: 442E 690F 0000 0000 0000 0000 0000 0000 0000 401E D.i...............@.120: 401C 0000 0000 0000 0000 0000 0000 0000 0029 6DB0 @................)m.130: 7470 6DB0 7470 2020 0002 0140 0100 5000 3C06 3C0A tpm.tp ...@..P.<.<.140: 0000 003C 0000 0008 0000 0000 004F 0280 0000 0000 ...<.........O......150: 0008 0000 0000 0000 0000 0000 0000 0000 3F00 9800 ................?...160: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 ....................170: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 ....................180: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 ....................190: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 ....................200: 0000 0000 0000 0000 0000 0000 103F 0000 0000 0000 .............?......210: 0000 0000 0000 0000 0000 0000 0000 1C20 0000 0000 ............... ....220: 0000 0000 1020 0000 0000 0000 0000 0000 0000 0000 ..... ..............230: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 ....................240: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 ....................250: 0000 0000 0000 0000 0000 93A5 ............-- SMART_READ_DATA ---------------------------------------------------------+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F000: 0A 00 01 0F 00 6B 4C 01 74 13 0C 00 00 00 03 03 .....kL.t.......010: 00 64 64 00 00 00 00 00 00 00 04 32 00 64 64 39 .dd........2.dd9020: 00 00 00 00 00 00 05 33 00 05 05 51 0F 00 00 00 .......3...Q....030: 00 00 07 0F 00 3C 3C 5B 5F 11 00 00 00 00 09 32 .....<<[_......2040: 00 56 56 01 31 00 00 00 00 00 0A 13 00 64 64 00 .VV.1........dd.050: 00 00 00 00 00 00 0C 32 00 64 64 88 00 00 00 00 .......2.dd.....060: 00 00 B7 32 00 64 64 00 00 00 00 00 00 00 B8 32 ...2.dd........2070: 00 64 64 00 00 00 00 00 00 00 BB 32 00 01 01 84 .dd........2....080: 04 00 00 00 00 00 BC 32 00 64 60 1C 00 1C 00 1C .......2.d`.....090: 00 00 BD 3A 00 64 64 00 00 00 00 00 00 00 BE 22 ...:.dd........"0A0: 00 38 28 2C 00 19 2D 40 00 00 C2 22 00 2C 3C 2C .8(,..-@...".,<,0B0: 00 00 00 14 00 00 C3 1A 00 32 21 01 74 13 0C 00 .........2!.t...0C0: 00 00 C5 12 00 64 64 09 00 00 00 00 00 00 C6 10 .....dd.........0D0: 00 64 64 09 00 00 00 00 00 00 C7 3E 00 C8 C8 00 .dd........>....0E0: 00 00 00 00 00 00 F0 00 00 64 FD 6A 03 00 00 D4 .........d.j....0F0: 8C 2A F1 00 00 64 FD F2 25 B5 04 00 00 00 F2 00 .*...d..%.......100: 00 64 FD 37 3F 7E C7 00 00 00 00 00 00 00 00 00 .d.7?~..........110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................160: 00 00 00 00 00 00 00 00 00 00 82 00 61 02 00 7B ............a..{170: 03 00 01 00 01 AB 02 00 00 00 00 00 00 00 00 00 ................180: 00 00 00 00 10 05 00 00 05 00 00 00 00 00 00 00 ................190: 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 ................1A0: 00 00 00 00 00 00 00 00 0E A6 3D 4C 13 29 00 00 ..........=L.)..1B0: 00 00 00 00 00 00 3A 81 F2 25 B5 04 00 00 00 00 ......:..%......1C0: 37 3F 7E C7 0C 04 00 00 00 00 00 00 37 F8 7E 00 7?~.........7.~.1D0: 00 00 00 05 10 00 00 00 BD 07 00 00 00 00 00 00 ................1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50 ...............P-- SMART_READ_THRESHOLD ----------------------------------------------------+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F000: 01 00 01 06 00 00 00 00 00 00 00 00 00 00 03 00 ................010: 00 00 00 00 00 00 00 00 00 00 04 14 00 00 00 00 ................020: 00 00 00 00 00 00 05 24 00 00 00 00 00 00 00 00 .......$........030: 00 00 07 1E 00 00 00 00 00 00 00 00 00 00 09 00 ................040: 00 00 00 00 00 00 00 00 00 00 0A 61 00 00 00 00 ...........a....050: 00 00 00 00 00 00 0C 14 00 00 00 00 00 00 00 00 ................060: 00 00 B7 00 00 00 00 00 00 00 00 00 00 00 B8 63 ...............c070: 00 00 00 00 00 00 00 00 00 00 BB 00 00 00 00 00 ................080: 00 00 00 00 00 00 BC 00 00 00 00 00 00 00 00 00 ................090: 00 00 BD 00 00 00 00 00 00 00 00 00 00 00 BE 2D ...............-0A0: 00 00 00 00 00 00 00 00 00 00 C2 00 00 00 00 00 ................0B0: 00 00 00 00 00 00 C3 00 00 00 00 00 00 00 00 00 ................0C0: 00 00 C5 00 00 00 00 00 00 00 00 00 00 00 C6 00 ................0D0: 00 00 00 00 00 00 00 00 00 00 C7 00 00 00 00 00 ................0E0: 00 00 00 00 00 00 F0 00 00 00 00 00 00 00 00 00 ................0F0: 00 00 F1 00 00 00 00 00 00 00 00 00 00 00 F2 00 ................100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................1B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................1C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................1D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60 ...............` 
           Model : ST31000524AS        Firmware : JC45   Serial Number : 5VPA1GND       Disk Size : 1000.2 GB (8.4/137.4/1000.2/1000.2)     Buffer Size : Unknown     Queue Depth : 32    # of Sectors : 1953525168   Rotation Rate : 7200 RPM       Interface : Serial ATA   Major Version : ATA8-ACS   Minor Version : ATA8-ACS version 4   Transfer Mode : SATA/600 | SATA/600  Power On Hours : 12814 hours  Power On Count : 79 count     Temperature : 41 C (105 F)   Health Status : Good        Features : S.M.A.R.T., AAM, 48bit LBA, NCQ       APM Level : ----       AAM Level : D0D0h [ON]-- S.M.A.R.T. --------------------------------------------------------------ID Cur Wor Thr RawValues(6) Attribute Name01 113 _99 __6 00000302E5D7 Read Error Rate03 100 100 __0 000000000000 Spin-Up Time04 100 100 _20 000000000051 Start/Stop Count05 100 100 _36 000000000000 Reallocated Sectors Count07 _71 _60 _30 000100DDD947 Seek Error Rate09 _86 _86 __0 00000000320E Power-On Hours0A 100 100 _97 000000000000 Spin Retry Count0C 100 100 _20 00000000004F Power Cycle CountB7 100 100 __0 000000000000 㸨 B8 100 100 _99 000000000000 End-to-End ErrorBB 100 100 __0 000000000000 Reported Uncorrectable ErrorsBC 100 100 __0 000000000000 Command TimeoutBD 100 100 __0 000000000000 High Fly WritesBE _59 _40 _45 003F2A180029 Airflow TemperatureC2 _41 _60 __0 001700000029 TemperatureC3 _35 _14 __0 00000302E5D7 Hardware ECC recoveredC5 100 100 __0 000000000000 Current Pending Sector CountC6 100 100 __0 000000000000 Uncorrectable Sector CountC7 200 200 __0 000000000000 UltraDMA CRC Error CountF0 100 253 __0 37DC0000326C Head Flying HoursF1 100 253 __0 0000403E8D5F Total Host WritesF2 100 253 __0 000087DD1890 Total Host Reads-- IDENTIFY_DEVICE ---------------------------------------------------------        0    1    2    3    4    5    6    7    8    9000: 0C5A 3FFF C837 0010 0000 0000 003F 0000 0000 0000  .Z?..7.......?......010: 2020 2020 2020 2020 2020 2020 3556 5041 3147 4E44              5VPA1GND020: 0000 0000 0004 4A43 3435 2020 2020 5354 3331 3030  ......JC45    ST3100030: 3035 3234 4153 2020 2020 2020 2020 2020 2020 2020  0524AS              040: 2020 2020 2020 2020 2020 2020 2020 8010 0000 2F00                ..../.050: 4000 0200 0200 0007 3FFF 0010 003F FC10 00FB 0110  @.......?....?......060: FFFF 0FFF 0000 0007 0003 0078 0078 0078 0078 0000  ...........x.x.x.x..070: 0000 0000 0000 0000 0000 001F 850E 0006 0048 0040  .................H.@080: 01F0 0029 346B 7F01 4163 3469 BE01 4163 017F 0051  ...)4k..Ac4i..Ac...Q090: 0051 0000 FFFE 0000 D0D0 0000 0000 0000 0000 0000  .Q..................100: 6DB0 7470 0000 0000 0000 0000 0000 0000 5000 C500  m.tp............P...110: 4430 1C9D 0000 0000 0000 0000 0000 0000 0000 401E  D0................@.120: 401C 0000 0000 0000 0000 0000 0000 0000 0029 6DB0  @................)m.130: 7470 6DB0 7470 2020 0002 0140 0100 5000 3C06 3C0A  tpm.tp  ...@..P.<.<.140: 0000 003C 0000 0008 0000 0000 004F 0280 0000 0000  ...<.........O......150: 0008 0000 0000 0000 0000 0000 0000 0000 3F00 9800  ................?...160: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000  ....................170: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000  ....................180: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000  ....................190: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000  ....................200: 0000 0000 0000 0000 0000 0000 103F 0000 0000 0000  .............?......210: 0000 0000 0000 0000 0000 0000 0000 1C20 0000 0000  ............... ....220: 0000 0000 1020 0000 0000 0000 0000 0000 0000 0000  ..... ..............230: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000  ....................240: 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000  ....................250: 0000 0000 0000 0000 0000 4BA5                      ..........K.-- SMART_READ_DATA ---------------------------------------------------------     +0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F000: 0A 00 01 0F 00 71 63 D7 E5 02 03 00 00 00 03 03  .....qc.........010: 00 64 64 00 00 00 00 00 00 00 04 32 00 64 64 51  .dd........2.ddQ020: 00 00 00 00 00 00 05 33 00 64 64 00 00 00 00 00  .......3.dd.....030: 00 00 07 0F 00 47 3C 47 D9 DD 00 01 00 00 09 32  .....G<G.......2040: 00 56 56 0E 32 00 00 00 00 00 0A 13 00 64 64 00  .VV.2........dd.050: 00 00 00 00 00 00 0C 32 00 64 64 4F 00 00 00 00  .......2.ddO....060: 00 00 B7 32 00 64 64 00 00 00 00 00 00 00 B8 32  ...2.dd........2070: 00 64 64 00 00 00 00 00 00 00 BB 32 00 64 64 00  .dd........2.dd.080: 00 00 00 00 00 00 BC 32 00 64 64 00 00 00 00 00  .......2.dd.....090: 00 00 BD 3A 00 64 64 00 00 00 00 00 00 00 BE 22  ...:.dd........"0A0: 00 3B 28 29 00 18 2A 3F 00 00 C2 22 00 29 3C 29  .;()..*?...".)<)0B0: 00 00 00 17 00 00 C3 1A 00 23 0E D7 E5 02 03 00  .........#......0C0: 00 00 C5 12 00 64 64 00 00 00 00 00 00 00 C6 10  .....dd.........0D0: 00 64 64 00 00 00 00 00 00 00 C7 3E 00 C8 C8 00  .dd........>....0E0: 00 00 00 00 00 00 F0 00 00 64 FD 6C 32 00 00 DC  .........d.l2...0F0: 37 36 F1 00 00 64 FD 5F 8D 3E 40 00 00 00 F2 00  76...d._.>@.....100: 00 64 FD 90 18 DD 87 00 00 00 00 00 00 00 00 00  .d..............110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................160: 00 00 00 00 00 00 00 00 00 00 82 00 58 02 00 7B  ............X..{170: 03 00 01 00 01 A9 02 00 00 00 00 00 00 00 00 00  ................180: 00 00 00 00 10 05 00 00 07 00 00 00 00 00 00 00  ................190: 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00  ................1A0: 00 00 00 00 00 00 00 00 76 F1 1D EB FF 29 00 00  ........v....)..1B0: 00 00 00 00 01 00 7A 06 5F 8D 3E 40 01 00 00 00  ......z._.>@....1C0: 90 18 DD 87 23 00 00 00 00 00 00 00 35 ED 90 03  ....#.......5...1D0: 00 00 00 02 00 00 00 00 88 23 00 00 30 00 0C 00  .........#..0...1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 30  ...............01F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 A1  ................-- SMART_READ_THRESHOLD ----------------------------------------------------     +0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F000: 01 00 01 06 00 00 00 00 00 00 00 00 00 00 03 00  ................010: 00 00 00 00 00 00 00 00 00 00 04 14 00 00 00 00  ................020: 00 00 00 00 00 00 05 24 00 00 00 00 00 00 00 00  .......$........030: 00 00 07 1E 00 00 00 00 00 00 00 00 00 00 09 00  ................040: 00 00 00 00 00 00 00 00 00 00 0A 61 00 00 00 00  ...........a....050: 00 00 00 00 00 00 0C 14 00 00 00 00 00 00 00 00  ................060: 00 00 B7 00 00 00 00 00 00 00 00 00 00 00 B8 63  ...............c070: 00 00 00 00 00 00 00 00 00 00 BB 00 00 00 00 00  ................080: 00 00 00 00 00 00 BC 00 00 00 00 00 00 00 00 00  ................090: 00 00 BD 00 00 00 00 00 00 00 00 00 00 00 BE 2D  ...............-0A0: 00 00 00 00 00 00 00 00 00 00 C2 00 00 00 00 00  ................0B0: 00 00 00 00 00 00 C3 00 00 00 00 00 00 00 00 00  ................0C0: 00 00 C5 00 00 00 00 00 00 00 00 00 00 00 C6 00  ................0D0: 00 00 00 00 00 00 00 00 00 00 C7 00 00 00 00 00  ................0E0: 00 00 00 00 00 00 F0 00 00 00 00 00 00 00 00 00  ................0F0: 00 00 F1 00 00 00 00 00 00 00 00 00 00 00 F2 00  ................100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................1A0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................1B0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................1C0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................1D0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................1E0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................1F0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 60  ...............` 
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