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ilovemydata

Post subject: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 1st, 2023, 13:42

Joined: July 1st, 2023, 13:14
Posts: 11
Location: location

Hello,

a Seagate Archive HDD ST8000AS0002 committed suicide as it seems :/

It is a 3.5" HDD with capacity of 8TB and was mounted in fixed 8-bay USB-housing as data archive.
It was only used once a month for data transfer, then completely powered off. The device was not moved since years.
No one else touched the device and no one else was using it.

Then one day last month, when the 8-bay USB-housing was powered on again, only this single drive was completely death.
Because of that I ruled out physical hardware damage. I removed defective drive from 8-bay housing and also completely identical other HDD with exact identical firmware and pcb. I then did pcb board swap. That confirmed there was no physical damage - HDD was spinning up, also recognized by pc but reading of sectors failed because firmware transfer was not done yet.

I used chinese usb-programmer with pogo-pins for in-circuit firmware-dumping of patient's firmware including confirmation reading of firmware. I then applied it to donor pcb - result: not working, same as in beginning, no life sign at all. I then reversed the process and now again spin-up, but because of not matching firmware parameters the pc cannot read data. Also SMART not working.

I have only hex-editor and chinese usb-programmer as equipment. I did comparision of hex dumps and found out that in patient's firmware there are some modules missing. I ruled out corrupted or broken EEPROM because there are no artifacts of wrong data there. EEPROM is readable fine from beginning to end with plausible data-blocks everywhere. Also data seems plausible from hex-editor view. There are just some modules missing!

Why the f* did this Seagate HDD deleted it's own modules from EEPROM? It must have done it by itself. There was no external event.

What do you think? Is there a way to read-out my data? Maybe using PC-3000?

I bow down before the masterminds of this forum :wink:

In the patient's firmware there is data missing at the following offsets:

0x0EFFF8
0x180000
0x181870
0x181C90
0x182805
0x183013
0x195CB0
0x1974D0
0x1984F0

Attachment:

dump-brokendevice.zip [437.71 KiB]
Downloaded 158 times

Attachment:

dump-working-identical.zip [460.23 KiB]
Downloaded 160 times

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fzabkar

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 1st, 2023, 23:39

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia

The RAP module in your patient ROM has a bad checksum. I'll see if I can repair it for you.

You can parse the ROM with this tool:

http://www.hddoracle.com/viewtopic.php?p=18531#p18531

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fzabkar

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 0:24

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia

The byte at offset 0x9D0B in the RAP module appears to have a single flipped bit. The current value is 0x88, but it should be 0x08.

Code:

Offset(h) 00   02   04   06   08   0A   0C   0E   10   12   14   16   18   1A   1C   1E   20   22   24   26   28   2A   2C   2E   30   32   34   36   38   3A   3C   3E   40   42   44   46   48   4A   4C   4E   50   52   54   56   58   5A   5C   5E   60   62   64   66   68   6A   6C   6E   70   72   74   76   78   7A   7C   7E   80   82   84   86   88   8A   8C   8E   90   92   94   96   98   9A   9C   9E   A0   A2   A4   A6   A8   AA   AC   AE   B0   B2

00009948  F1EF F10F F1EF F3F0 F0EF 7C0C 0705 0B00 4B01 2860 1320 0000 3401 0000 B400 7F00 B41E FA1F 3400 FC1F 3400 7F00 B41E 8000 B400 801F B401 011F 5C0C C67B A170 6110 FE0B 8407 C37C 5F14 1D10 C57F 6100 0101 0002 0207 F2E2 34EA 13F7 0007 FE01 0045 5A11 3054 8000 0200 F93F 1518 1518 1518 1518 1D00 7E0C 3203 7100 0024 0001 FF06 F814 D200 F224 F00C F904 FE00 00FB 9C60 0004 4100 3F00 F445 1156 3E3D 0000 3C3E 383B 0206 3D3D 3A3A 0806 1F00 0973 F010 01BF 13FF
000099FC  0FD1 F10F 01BF 01F0 ECF2 7C0C 0708 0B00 4F01 2860 1020 0000 3401 0100 B400 7E00 741E 7A00 F41F FC1F F41F FF00 741E 0101 7400 7F00 B401 011F 1D0C C57B A374 600C FD13 857B C47C 5F14 1C14 A57B 8300 0101 0100 05FB F6E3 2CE9 12F5 0006 FD00 0042 5A14 B053 8000 FA01 773F 0E18 0E18 0E18 0E18 4300 D80A 5103 7100 0024 0003 FC0B F321 D700 FD2D F90E FE05 0002 0003 9C80 2004 017C 3F04 F645 F165 3C3D 0201 3D3D 3839 0406 3B3C 3A38 090A 1F00 0973 D120 00E1 030F
00009AB0  1FD1 F41F 10D0 04FF 0FD0 7C0C 070F 0B00 5701 2860 1320 0000 B401 8200 B400 7F00 741E 7B00 F41F 7B00 741F FF00 F41D 8200 7400 FF1F F401 011F FC0F 8603 E370 6014 1C0C 687B C374 5F18 1C10 857F C100 0101 0102 0409 FAEE 37EF 15F9 0009 FE02 0042 5A14 3054 8000 FD01 AD3D 1118 1118 1118 1118 3F00 0B0C 3003 7100 0024 0002 FD0A F21F C600 FA22 F50B FB03 FF00 00EF 9C80 1F04 4100 FE07 344A 315E 3C3A 3E3E 3B3B 373A 0507 3E3E 3C3A 0A06 1F00 0971 0001 00D0 12F1
00009B64  0F02 12F0 00D0 12F2 EC32 7C0C 070C 0A00 4901 2860 1A20 0000 3401 0000 3400 FF1F B41E 7B00 3400 FC1F F41F FF1F 741E 8000 7400 FF1F 7401 011F 1D08 A47B 8374 6008 1D08 857F 8278 3E14 1D10 847B 8000 02FF 03FF 06FD F0E7 29ED 0FF8 0004 FE01 0046 5A10 3054 8000 0000 DA3E 0D18 0D18 0D18 0D18 3C00 A90B 4203 7100 0024 0002 FD09 F41C D200 FA28 F60E FC06 0002 00F9 9C80 2000 2100 1E04 144A 115A 3C3B 3F3F 3B3B 373A 0407 3D3E 3B39 0A06 1F00 0974 FE20 FFE0 0200
00009C18  01D0 F10F 00D0 03F0 F0E0 7C0C 0709 0B00 3201 2860 1420 0000 3C01 801F 3C00 FE1F FC1E 7C00 FC1F FC1F BC1F 7F00 BC1E 8000 3C00 FF1F 3C01 011F 5D08 C47F A274 600C FE13 8503 A27C 6114 1D10 A47F 8100 0100 01FF 07FF FBE9 32ED 15F8 0009 FE03 0046 5A10 3074 8000 FE01 F93F 1218 1218 1218 1218 2400 2E0C 4F03 7100 0024 0003 FC0B F123 CD00 FF25 F70A FB03 FF00 0004 9C80 0004 4100 3E04 344E 525A 3B3A 3E3E 3A3B 383B 0608 3F00 3D3B 0C07 1F00 0972 0F10 EFDF 01E0
00009CCC  F0F0 0FF0 F0DF 0FE1 EE11 7C0C 0704 0B00 5601 2860 1920 0000 B400 801F 3400 7F00 341F 7C00 3400 FD1F 3400 7F00 341F 0000 7400 801F 3401 001F 5F04 C37B 6278 4088 1F08 C307 827C 5F10 3E08 C37F 6200 0200 0300 0603 F6ED 2CEF 0FF8 0005 FD01 0046 5A10 3053 8000 FB01 AD3D 1318 1318 1318 1318 4B00 D70A 4403 7100 0024 0003 FC0B F022 CE00 F42B F50E FC04 0001 00F5 9C80 0004 2100 1F04 354A 326A 3C3A 3F3E 3B3A 3639 0505 3C3E 3B3A 0A08 1F00 0B71 FE11 FFE0 0100
                                                                                                                                                                     ^^^^
                                                                                                                                                         should be 0x4008

00009D80  FFF1 01FF 00E0 03F0 FFF1 7C0C 070D 0A00 5301 2860 1320 0000 3401 801F 7400 7F00 B41E FB1F 3400 FC1F F41F 7F00 B41E 8000 7400 801F 7401 011F 3D0C 857F C374 410C DD0F 8507 A278 7E14 1D10 A47B 8200 0101 0101 0305 F5E3 35EB 14F7 0008 FD02 0046 5A10 3054 8000 FB01 AD3D 1118 1118 1118 1118 2F00 710B 4B03 7100 0024 0001 FF06 F916 DF00 F928 F50B FA02 FF00 00FD 9C20 0004 217C 3E00 1446 1156 3E3D 003F 3D3D 383B 0306 3D3D 3B39 0605 1F00 0973 F10F F0CF 02EF
00009E34  1FD1 02FF 00C0 F0F0 FCF1 7C0C 0705 0A00 5D01 2860 0D20 0000 3401 0100 7400 7F00 B41E 7C00 B41F 7C00 741F FF00 B41E 8100 B400 801F 3401 011F 1D04 A577 8378 5F0C FD13 647B A278 9F10 DC13 857B 8200 0100 0101 0404 FCEC 30ED 10F7 0004 FD00 003F 5A17 3053 8000 F901 F63E 1118 1118 1118 1118 1700 4C0C 4703 7100 0024 0001 FF05 F916 D900 F128 F50E FC06 FF02 00FA 9C40 2004 4100 1F04 134E 3156 3C3A 3F3E 3A3A 383C 0507 3E00 3C3A 0C06 1F00 0F74 0E10 F0EF F1FF
00009EE8  00F0 00F0 F0E0 F200 F0FF 7C0C 0707 0B00 4001 2860 0C20 0000 F800 0000 3800 7F00 381F 7D00 F81F FD1F B81F 7F00 381F 0000 B800 801F F800 801F 3E08 E47F 6274 3E08 FE0B A37F 8200 7F10 DD0F C27F 4100 0101 0100 0500 FAE0 31EC 14F7 0008 FD03 0042 5A14 3063 8000 FC01 583E 1918 1918 1918 1918 E501 2D0C 4D03 7100 0024 0002 FF07 F917 DE00 0026 F80C FD04 FF01 00F7 9CA0 2000 4100 1D04 134A 3156 3D3B 3F3F 3B3B 393C 0407 3E3F 3C3A 0A05 1F00 0873 0E11 E0DF 01FF
00009F9C  F0F0 FF00 01EF 01F0 FF01 7C0C 070A 0B00 4D01 2860 1120 0000 B400 0000 7400 7F00 341F FC1F 3400 FD1F F41F 7F00 F41E 8000 7400 801F 3401 801F 3E08 E377 4174 2108 FE0B A203 8200 3F0C FD0B C37B 6200 0201 0300 08FE 04EE 2DF0 10F9 0006 FE02 0045 5A11 3053 8000 FC01 F63E 1318 1318 1318 1318 3F00 AE0B 4903 7100 0024 0001 FF06 FA15 E100 FB27 F80D FD05 0001 00FA 9C80 1F00 4100 1E04 344A 315A 3D3C 3F3F 3C3C 393C 0407 3E3E 3C39 0906 1F00 0973 0031 F0F1 0300

In your bad ROM dump, change this ...

Code:

Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

00069D00  34 01 00 1F 5F 04 C3 7B 62 78 40 88 1F 08 C3 07

... to this:

Code:

Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

00069D00  34 01 00 1F 5F 04 C3 7B 62 78 40 08 1F 08 C3 07

Note: The wordwrap messes up the long lines.

Attachments:

00060000_DL_RAPM_bad.7z [59.36 KiB]
Downloaded 147 times

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ilovemydata

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 2:00

Joined: July 1st, 2023, 13:14
Posts: 11
Location: location

@fzabkar Many thanks for your help :cool:

How did you find the bit-flip? I used your STROMfix_2 but received 144 possible bit flips.

I did the patch you calculated and DL_RAPM seems now good.

HDD does spin-up but sectors cannot be read.

Please look at DL_UDSBFW. If I compare it to other firmware (see attachment above), it only contains 0xFF in patient's firmware.
Can I take it from other firmware?

Attachment:

f3.png [ 80.25 KiB | Viewed 3716 times ]

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fzabkar

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 3:00

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia

DL_UDSBFW is usually empty. I think you have a different problem.

My tool gives a lot of possibilities, but most can be quickly excluded by examining the surrounding data. If you paste the data in the code block into Notepad, and switch off wordwrap, you will see that the bad bit is quite obvious.

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ilovemydata

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 3:20

Joined: July 1st, 2023, 13:14
Posts: 11
Location: location

I now patched DL_UDSBFW from identical donor fw to patient fw -> hdd spin-up and sectors readable now :beer:

I will see if dumping of hdd mounted as read-only will work without errors. I will let you know in some days..

Note: I also found out, that DL_RAPM is saved a second time in the EEPROM as backup.

One more thing: Because I was a complete noob regarding hdd firmware repair till some days ago, I sent HDD to german data recovery specialist called DATA REVERSE. They offer diagnosis for 69 EUR and firmware repair for starting at 249 EUR. I bet they have all the expensive equipment like PC-3000... But they answered to me after doing the diagnosis:

We are sorry, we cannot repair the firmware because critical fw modules are corrupted and because this is unique for each hdd. The guy on the phone also told me that this error is because I did pcb-swap ...

Because of you guys I learned that the answer of this company is bullshit ..

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fzabkar

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 3:44

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia

Does the faulty drive now identify itself with its correct model number and capacity? Can you obtain a SMART report with CrystalDiskInfo or GSmartControl?

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fzabkar

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 4:10

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia

I have confirmed that I have identified the correct byte. The EXTRA_SPACE at the end of the ROM contains "noise" which includes a partial copy of the RAP.

RAP

Code:

Offset(h) 00   02   04   06   08   0A   0C   0E

00009CF0  3400 FD1F 3400 7F00 341F 0000 7400 801F
00009D00  3401 001F 5F04 C37B 6278 4088 1F08 C307
                                     ^^
00009D10  827C 5F10 3E08 C37F 6200 0200 0300 0603

Extra_Space

Code:

Offset(h) 00   02   04   06   08   0A   0C   0E

00009CE0                      3400 FD1F 3400 7F00
00009CF0  341F 0000 7400 801F 3401 001F 5F04 C37B
00009D00  6278 4008 1F08 C307 827C 5F10 3E08 C37F
                 ^^
00009D10  6200 0200 0300 0603

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fzabkar

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 4:26

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia

Data in the "noise" at the end of the ROM:
https://www.hddoracle.com/viewtopic.php?f=59&t=2173

This tool finds all possibilities for a single flipped bit in a Seagate ROM module:
http://users.on.net/~fzabkar/FreeBasic_W32/Seagate/STROMfix_2.bas
http://users.on.net/~fzabkar/FreeBasic_W32/Seagate/STROMfix_2.exe

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fzabkar

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 14:41

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia

Our posts have crossed due to a moderation delay, but I believe that your DL_UDSBFW patch was a red herring. In fact I have seen numerous Seagate ROM dumps from working drives where this segment is filled with 0xFF. One possible explanation may be that your USB enclosure/dock is configured with a sector size of 4KB. If you move a drive from this environment to a SATA port inside your computer, you will expose its native 512B sector size, thereby rendering your data inaccessible. Your OS would complain that the drive needs to be formatted.

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ilovemydata

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 15:22

Joined: July 1st, 2023, 13:14
Posts: 11
Location: location

I do not even know what DL_UDSBFW is. Maybe for some drive families it is needed and for others not.

I can confirm, that I use usb-sata dock (ASMT 2105) for working with the hdds, but I am not sure if it can interact with sector size because it is dumb?

Please check attached 2 other dumps of chinese donor pcbs for this hdd. In total there are 3x fw using DL_UDSBFW and only 1x patient DL_UDSBFW 0xFF.
After transferring DL_UDSBFW to patient it is working now.

Attachment:

dump-chinese-1.zip [473.75 KiB]
Downloaded 149 times

Attachment:

dump-chinese-2.zip [462.46 KiB]
Downloaded 158 times

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fzabkar

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 15:37

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia

That's strange. :-?

You can tell if your drives are configured with 4KB sectors by examining the Partitions tab in DMDE.

https://dmde.com/

I am attaching a ROM from the same model HDD (which I repaired) that had a single stuck bit in the SAP module. The owner was able to start his drive and recover his data without touching that empty segment.

Attachments:

20210512_133733_W25Q16DW_edited.7z [249.77 KiB]
Downloaded 156 times

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Last edited by fzabkar on July 2nd, 2023, 15:49, edited 1 time in total.

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ilovemydata

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 15:48

Joined: July 1st, 2023, 13:14
Posts: 11
Location: location

Code:

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Archive HDD (SMR)
Device Model:     ST8000AS0002-1NA17Z
Serial Number:    Z840WFTL
LU WWN Device Id: 5 000c50 0936a96fb
Firmware Version: AR17
User Capacity:    8,001,563,222,016 bytes [8.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5980 rpm

This is from other hdd (identical) from 8-bay usb-housing.

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fzabkar

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 15:51

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia

ilovemydata wrote:

Code:

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Archive HDD (SMR)
Device Model:     ST8000AS0002-1NA17Z
Serial Number:    Z840WFTL
LU WWN Device Id: 5 000c50 0936a96fb
Firmware Version: AR17
User Capacity:    8,001,563,222,016 bytes [8.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    5980 rpm

This is from other hdd (identical) from 8-bay usb-housing.

Your software is talking directly with the HDD behind the USB-SATA bridge, whereas the OS talks to the USB mass storage device. You need to determine what the OS is seeing.

To this end you can use the following command (X: is the drive letter):

Code:

fsutil fsinfo ntfsinfo x:

Code:

C:\WINDOWS\system32>fsutil fsinfo ntfsinfo c:
NTFS Volume Serial Number :        0xnnnnnnnnnnnnnnnn
NTFS Version      :                3.1
LFS Version       :                2.0
Total Sectors     :                1,758,172,591  (838.4 GB)
Total Clusters    :                  219,771,573  (838.4 GB)
Free Clusters     :                  140,751,146  (536.9 GB)
Total Reserved Clusters :                  5,296  ( 20.7 MB)
Reserved For Storage Reserve :                 0  (  0.0 KB)
Bytes Per Sector  :                512
Bytes Per Physical Sector :        512
Bytes Per Cluster :                4096
Bytes Per FileRecord Segment    :  1024
Clusters Per FileRecord Segment :  0
Mft Valid Data Length :            1.48 GB
Mft Start Lcn  :                   0x00000000000c0000
Mft2 Start Lcn :                   0x00000000012a14bc
Mft Zone Start :                   0x0000000003cd7180
Mft Zone End   :                   0x0000000003ce2ea0
MFT Zone Size  :                   189.13 MB
Max Device Trim Extent Count :     0
Max Device Trim Byte Count :       0
Max Volume Trim Extent Count :     62
Max Volume Trim Byte Count :       0x40000000
Resource Manager Identifier :      ...

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ilovemydata

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 15:59

Joined: July 1st, 2023, 13:14
Posts: 11
Location: location

Code:

Disk Size:                 8.0 TB (8001563222016 Bytes) (exactly 15628053168 512-Byte-Units)
Device Block Size:         512 Bytes

diskutil info disk8

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fzabkar

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 2nd, 2023, 16:06

Joined: September 8th, 2009, 18:21
Posts: 15538
Location: Australia

Weird. I don't understand it.

Here is that other case:

https://forums.tomshardware.com/threads/seagate-archive-hdd-failure-no-crash-no-spin-silent-troubleshooting-advise%E2%80%A6.3699522/

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ilovemydata

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: July 3rd, 2023, 6:14

Joined: July 1st, 2023, 13:14
Posts: 11
Location: location

@fzabkar Again, thanks for your help :agree:

I was able to read all 8 TB data to other drive. These are big mkv-video-files and it seems like there is no error with data integrity.

For safety reasons I will keep the patient hdd for some time to make sure to read it again if I find out that data integrity has errors with first read-out. Maybe some fw parameters are wrong in this case.

Also SMART capability with patient drive is working again. Also Seagate SeaTools reports no errors.

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Zibri

Post subject: Re: Seagate Archive HDD ST8000AS0002 SELF-DESTRUCT

Posted: January 20th, 2024, 11:29

Joined: January 26th, 2023, 17:53
Posts: 15
Location: Italy / Egypt

Mine died very young.
Now it shows:
Model: ST8000AS0002
Firmware AR15
Serial Z840E9CL
Capacity 8089950 LBAs 4 GB
CHS: 16383/16/63 8 GB
S.M.A.R.T Enabled, Errlog, Selftest
Cache Unk.size; L/A=ON; Wr=ON; ok
Support LBA, HPA, DLM, DCO, DMA UDMA-6
Erase Time ~ 3 hours 30 minutes
Security OFF
ATA-8: SATA3, NCQ, PEC, SCT, SFDLM, WrUnk, W-R-V
SCT: AC2, AC3, AC4, AC5
Sector Logic 512 bytes Phys 512

And does 2 clicks when it spins up.
Any help apreciated.

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