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 Post subject: ST500DM002 - media damage?
PostPosted: July 13th, 2017, 15:24 
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Posts: 221
Location: Manchester, UK
Hello All,

I’m running out of options for a disk I am working on. Any suggestions are welcome. I have a feeling the answer for this one will be ‘media damage’.

Patient:
ST500DM002-1BD142
Z3T…
KC45
TK

Donor – Match on all of above.
Similar symptoms as per: http://forum.acelaboratory.com/viewtopic.php?t=8273

Drive IDs as:
Model : ST_M13FQBL
Serial : QNR_BFW
Firmware : 03011619
Capacity : 3.86 GB (8 089 950)

Disk stays spinning. Terminal output below.

Work so far:
• Tested patient with donor PCB, no change.
• Attempted shorting read-channel with patient heads inside. Cannot get to T> . When shorting at the ‘correct’ time, drive spins down after a number of clicks, but will still will not provide T> .
• Opened HDD, inspected heads under microscope – no visible damage. In the HDA there are small signs of contamination, hard to see silver coloured fragments (Yes, not good I know!)
• Use of donor heads in patient provide the same results. After swapping donor heads back into donor they still work OK.
• Patient heads in donor drive do not work – they have failed.

If there was significant damage to the platter I would have expected the donor heads to have degraded, and not be functional once they were swapped back into the donor. However, the tiny amounts of silver coloured fragments would suggest some media damage, perhaps to SA? More likely than not media damage on this disks, but trying to exhaust all possibilities.

Any suggestions are welcome on this one.
Thanks,
John

Terminal output:

Boot 0x10M
Spin Up
RECOV Servo Op=0100 Resp=0005[0x00000000]
RECOV Servo Op=0055 Resp=0005[0x00000000]ZZZZMMMMMMMMMMMMMMMZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMddddddWWWWMMMMMM
FAIL Servo Op=0155 Resp=0007
ResponseFrame 0000 0000 0000 0000 0020 0000 0000 0000 0F98 0000 0000 0000 0000 0000 0000 0000 000Ax
RECOV Servo Op=0155 Resp=0005[0x00025CB4][0x00025CB4]ZZZZMMMMMMMMMMMMMMMZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMddddddWWWWMMMMMM
FAIL Servo Op=0055 Resp=0007
ResponseFrame 0000 0000 0000 0000 0020 0000 0000 0000 0F98 0000 0000 0000 0000 0000 0000 0000 000A
RECOV Servo Op=0155 Resp=0005x
RECOV Servo Op=0055 Resp=0005[0x0000B319]
RECOV Servo Op=0055 Resp=0005[0x0000B319]ZZZZMMMMMMMMMMMMMMMZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMddddddWWWWMMMMMM
FAIL Servo Op=0155 Resp=0007
ResponseFrame 0000 0000 0000 0000 0020 0000 0000 0000 0F98 0000 0000 0000 0000 0000 0000 0000 000A
RECOV Servo Op=0055 Resp=0005x
RECOV Servo Op=0155 Resp=0005[0x00030FCD][0x00030FCD]ZZZZMMMMMMMMMMMMMMMZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMddddddWWWWMMMMMM
FAIL Servo Op=0055 Resp=0007
ResponseFrame 0000 0000 0000 0000 0020 0000 0000 0000 0F98 0000 0000 0000 0000 0000 0000 0000 000A
RECOV Servo Op=0155 Resp=0005x

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 13th, 2017, 23:24 
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Joined: September 29th, 2005, 12:02
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Location: Chicago
judging by the log the heads are not yet dead but SA cannot be read
possibly MD developing

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 14th, 2017, 19:06 
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Joined: October 3rd, 2005, 0:40
Posts: 2522
Location: Hungary
or ROM is not native...

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 16th, 2017, 14:05 
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Joined: August 15th, 2006, 3:01
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Location: CDRLabs @ Chandigarh [ India ]
Well,
Try this -> https://www.youtube.com/watch?v=k0hTEu9bx5A

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 16th, 2017, 16:52 
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Joined: November 7th, 2015, 13:04
Posts: 100
Location: Austin metro area TX USA
I'm wondering how the word wrap got turned off in the initial post; there is a lot of long left to right scrolling required to read the excellent information provided.

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 16th, 2017, 17:05 
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RolandJS wrote:
I'm wondering how the word wrap got turned off in the initial post; there is a lot of long left to right scrolling required to read the excellent information provided.

A line with no spaces cannot be wrapped.

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 17th, 2017, 4:14 
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Joined: December 8th, 2013, 4:48
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Location: Pakistan
pepe wrote:
or ROM is not native...

+1 looks like ROM is not native.

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 17th, 2017, 4:15 
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Joined: December 8th, 2013, 4:48
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Location: Pakistan
Amarbir[CDR-Labs] wrote:


this solution will not work, since drive is not ID properly in case of OP.

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 17th, 2017, 6:18 
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MindMergepk wrote:
Amarbir[CDR-Labs] wrote:


this solution will not work, since drive is not ID properly in case of OP.


Well,
This is Exactly What That Solution does My Friend .If Native Rom Is Not There Then No Chance Thats Easy To Find Right ?

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 17th, 2017, 6:29 
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Location: Remote Raid Help on planet Earth
Too much unnecessary things, guessing what is the problem. First step is to read the ROM and compare serial number from ROM with serial number on HDA sticker. If it is Ok, go further with loader.

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 17th, 2017, 6:58 
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Martin wrote:
Too much unnecessary things, guessing what is the problem. First step is to read the ROM and compare serial number from ROM with serial number on HDA sticker. If it is Ok, go further with loader.


Exactly ,
Finding If ROM is Native Or Not Is Not Hard In This Series IMHO

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 17th, 2017, 13:20 
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Joined: February 18th, 2009, 8:08
Posts: 221
Location: Manchester, UK
Thank you for the suggestions. I have been trying to bring this one to a conclusion this afternoon with a few checks and re-checks.

Tests conducted:
• Checking whether having head-map adaptives imported into patient ROM aid initialisation. No change on boot. Donor HDD is a very good match in all respects.
• Disabling individual heads in the ROM / changes of head-map. No change.
• Heads from donor still have functionality when placed back in the donor.

Inspection of the HDA shows that there is an increased amount of silver colour fragments. I’ve seen worse and the drive has been recoverable, but the fact that there is more contamination than there was to begin with would suggest to me that there is damage to the platter which is just getting worse. Images below.

Regarding the possibility of a non-native ROM:
In this case the donor HDD was supplied by the customer. Both PCBs were present, and the donor PCB initialises the donor correctly.
The job is from a regular customer, who is reliable, and not someone who I associate with swapping over components (that cannot be said of some the regulars). Therefore, it seems unlikely that a non-native PCB is on the patient. I will make a final check with the customer though. Perhaps there is a second ‘donor’ drive that I have not been made aware of. It seems unlikely though. Assuming that a PCB is not missing, I think it is most likely to conclude that this drive has media damage.

Best regards,
John

Attachment:
File comment: Initial opening. Minor contamination. Silver fragments highlighted with arrows.
ST500DM002 Initial opening.JPG
ST500DM002 Initial opening.JPG [ 1.89 MiB | Viewed 626 times ]

Attachment:
File comment: After head-swap. Additional contamination. Silver fragments highlighted with arrows. Suspected media damage.
ST500DM002 additional contamination.JPG
ST500DM002 additional contamination.JPG [ 534.54 KiB | Viewed 626 times ]

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 17th, 2017, 13:23 
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Joined: February 18th, 2009, 8:08
Posts: 221
Location: Manchester, UK
Just spotted the 'word-wrap' issue. No idea what has caused that!

J


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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 17th, 2017, 13:31 
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Joined: August 15th, 2006, 3:01
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Location: CDRLabs @ Chandigarh [ India ]
Respected John ,
May i ask you what tool you use to swap heads on this drive .Because i have seen small nicks and pits created by tools .Only a few tools in the world can actually swap heads without any nicks and pits

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CDRLabs Data Recovery - [ Chandigarh ,India ]
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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 17th, 2017, 13:49 
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Joined: February 18th, 2009, 8:08
Posts: 221
Location: Manchester, UK
Head tools used for headswap are made by HddSurgery.

J


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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 17th, 2017, 14:20 
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Joined: August 15th, 2006, 3:01
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Location: CDRLabs @ Chandigarh [ India ]
cheadledatarecovery wrote:
Head tools used for headswap are made by HddSurgery.

J



Well,
I Was Seeing The Photo of Your HDD Workbench And Could See Its Made By HDDsurgery .In That Case Head Swap Damage Is Virtually ruled Out .Thanks For The Feedback

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CDRLabs Data Recovery - [ Chandigarh ,India ]
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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 18th, 2017, 3:59 
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Joined: December 8th, 2013, 4:48
Posts: 624
Location: Pakistan
cam you upload both patient and donor ROMs here ?

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 18th, 2017, 4:47 
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Joined: October 24th, 2014, 4:57
Posts: 193
Location: Remote Raid Help on planet Earth
cheadledatarecovery wrote:
Thank you for the suggestions. I have been trying to bring this one to a conclusion this afternoon with a few checks and re-checks.

Tests conducted:
• Checking whether having head-map adaptives imported into patient ROM aid initialisation. No change on boot. Donor HDD is a very good match in all respects.
• Disabling individual heads in the ROM / changes of head-map. No change.
• Heads from donor still have functionality when placed back in the donor.

Inspection of the HDA shows that there is an increased amount of silver colour fragments. I’ve seen worse and the drive has been recoverable, but the fact that there is more contamination than there was to begin with would suggest to me that there is damage to the platter which is just getting worse. Images below.

Regarding the possibility of a non-native ROM:
In this case the donor HDD was supplied by the customer. Both PCBs were present, and the donor PCB initialises the donor correctly.
The job is from a regular customer, who is reliable, and not someone who I associate with swapping over components (that cannot be said of some the regulars). Therefore, it seems unlikely that a non-native PCB is on the patient. I will make a final check with the customer though. Perhaps there is a second ‘donor’ drive that I have not been made aware of. It seems unlikely though. Assuming that a PCB is not missing, I think it is most likely to conclude that this drive has media damage.

Best regards,
John

Attachment:
ST500DM002 Initial opening.JPG

Attachment:
ST500DM002 additional contamination.JPG


Writing this text is longer than read and compare SN from ROM with SN on the HDA sticker.
P.S."The job is from a regular customer, who is reliable, and not someone who I associate with swapping over components...." - Everybody lies. (C) House M.D.

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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 18th, 2017, 5:02 
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Joined: February 18th, 2009, 8:08
Posts: 221
Location: Manchester, UK
Patient and donor ROM attached for reference.

J


Attachments:
ROM Patient.zip [214.78 KiB]
Downloaded 22 times
ROM Donor.zip [214.38 KiB]
Downloaded 22 times
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 Post subject: Re: ST500DM002 - media damage?
PostPosted: July 18th, 2017, 7:18 
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Location: CDRLabs @ Chandigarh [ India ]
cheadledatarecovery wrote:
Patient and donor ROM attached for reference.

J



Well,
Donor Serial No is " Z3TC8SCM " , Patient Serial No is " Z3TKNZEY "

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CDRLabs Data Recovery - [ Chandigarh ,India ]
My Data Recovery Experiments - > https://www.facebook.com/chandigarhdatarecovery


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