Seagate Where did my disk go???

How to use TestDisk to recover lost partition
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plutonhouse
Posts: 2
Joined: 21 Dec 2018, 15:02

Seagate Where did my disk go???

#1 Post by plutonhouse » 21 Dec 2018, 15:14

Hi,

This is such a strange problem, I just don't know where to start, so I'm really hoping someone out there may have some inspiration :D .

A friend of mine didn't realise that hard drives go wrong, so he put all his life's photos on his single drive Synology. Now, after seven years of service, it's gone wrong.

It's a Seagate Barracuda ST3000DM001 3TB SATA 3.5", originally sold in a Synology DS112j. In Windows, chkdsk reports it as being 3950MB rather than the 2794GB it should be.

Funnily enough, I also have a Diskstation, four disks, which originally had the same disks in, but one I'd replaced because it was beginning to fail. I thought it seemed like an electronics problem, so swapped over the electronics board of both drives. Here's where the weirdness gets weirder! Now, BOTH drives report a size of 3950MB in chkdsk :? ! When I swapped the electronics back, it did go back to the original report, his showing 3950MB and mine 2794GB.

I tried Seagate's SeaTool, but it's pretty useless and just fails tests on both disks, whichever electronics they have.

For my next step, I was going to update the firmware, but it's a bit of a stab in the dark.

Any other great ideas out there???

Many, many thanks,
Clive

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cgrenier
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Re: Seagate Where did my disk go???

#2 Post by cgrenier » 22 Dec 2018, 11:48

Try to reset the DCO (Device Configuration Overlay) configuration. You should be able to do it whith seagate tools or with "hdparm --dco-restore" under Linux.
Do you get the correct disk size after that ?

plutonhouse
Posts: 2
Joined: 21 Dec 2018, 15:02

Re: Seagate Where did my disk go???

#3 Post by plutonhouse » 29 Dec 2018, 17:33

Hi Christophe,
Many thanks for your reply.
SeaTools was pretty hopeless - only seemed to offer tests, so I followed your advice and switched to Linux, using Knoppix on a USB stick.
First try was through USB/SATA adapter, but I got this error:

Code: Select all

 HDIO_DRIVE_CMD(dco_restore) failed: Invalid argument
I then figured that not all (and especially low-level) commands are supported by USB adapters, so I used the eSATA port on my laptop.
This time I got:

Code: Select all

SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 04 51 40 00 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
I tried the -N switch as well, but got this:

Code: Select all

 setting max visible sectors to 5860533168 (permanent)
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 04 51 40 00 21 04 00 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 04 51 40 01 21 04 00 00 a0 af 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 04 51 40 00 21 04 00 00 80 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
SG_IO: bad/missing sense data, sb[]:  70 00 05 00 00 00 00 0a 04 51 40 01 21 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 max sectors   = 8089950/1(17?), HPA setting seems invalid (buggy kernel device driver?)
It still showed up incorrectly.
Here is the response from -I:

Code: Select all

ATA device, with non-removable media
	Model Number:       ST3000DM001                             
	Serial Number:      Z1F2A0TJ
	Firmware Revision:  CC44    
	Transport:          Serial, SATA Rev 3.0
Standards:
	Used: unknown (minor revision code 0x0029) 
	Supported: 8 7 6 5 
	Likely used: 8
Configuration:
	Logical		max	current
	cylinders	16383	16383
	heads		16	16
	sectors/track	63	63
	--
	CHS current addressable sectors:    16514064
	LBA    user addressable sectors:   268435455
	LBA48  user addressable sectors:     8089950
	Logical/Physical Sector size:           512 bytes
	device size with M = 1024*1024:        3950 MBytes
	device size with M = 1000*1000:        4142 MBytes (4 GB)
	cache/buffer size  = unknown
	Nominal Media Rotation Rate: 7200
Capabilities:
	LBA, IORDY(can be disabled)
	Queue depth: 32
	Standby timer values: spec'd by Standard, no device specific minimum
	R/W multiple sector transfer: Max = 16	Current = 16
	Recommended acoustic management value: 254, current value: 0
	DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
	     Cycle time: min=120ns recommended=120ns
	PIO: pio0 pio1 pio2 pio3 pio4 
	     Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
	Enabled	Supported:
	   *	SMART feature set
	    	Security Mode feature set
	   *	Power Management feature set
	   *	Write cache
	   *	Look-ahead
	   *	Host Protected Area feature set
	   *	WRITE_BUFFER command
	   *	READ_BUFFER command
	   *	DOWNLOAD_MICROCODE
	    	SET_MAX security extension
	   *	48-bit Address feature set
	   *	Device Configuration Overlay feature set
	   *	Mandatory FLUSH_CACHE
	   *	FLUSH_CACHE_EXT
	   *	SMART error logging
	   *	SMART self-test
	   *	General Purpose Logging feature set
	   *	WRITE_{DMA|MULTIPLE}_FUA_EXT
	   *	64-bit World wide name
	    	Write-Read-Verify feature set
	   *	WRITE_UNCORRECTABLE_EXT command
	   *	{READ,WRITE}_DMA_EXT_GPL commands
	   *	Segmented DOWNLOAD_MICROCODE
	   *	unknown 119[7]
	   *	Gen1 signaling speed (1.5Gb/s)
	   *	Gen2 signaling speed (3.0Gb/s)
	   *	Gen3 signaling speed (6.0Gb/s)
	   *	Native Command Queueing (NCQ)
	   *	Phy event counters
	   *	READ_LOG_DMA_EXT equivalent to READ_LOG_EXT
	    	Device-initiated interface power management
	    	Software settings preservation
	   *	SMART Command Transport (SCT) feature set
	   *	SCT Write Same (AC2)
	   *	SCT Error Recovery Control (AC3)
	   *	SCT Features Control (AC4)
	   *	SCT Data Tables (AC5)
	    	unknown 206[7]
	    	unknown 206[12] (vendor specific)
Security: 
	Master password revision code = 65534
		supported
	not	enabled
	not	locked
	not	frozen
	not	expired: security count
		supported: enhanced erase
	210min for SECURITY ERASE UNIT. 210min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 5000c5004fa59688
	NAA		: 5
	IEEE OUI	: 000c50
	Unique ID	: 04fa59688
Integrity word not set (found 0x0000, expected 0x82a5)
I get the strong impression that something inside is damaged and the only way to recover is for a professional to take apart. However, I am interested to know how to decode the response, which I assume is some kind of error that hdparm doesn't know how to interpret?
This is the response for a working drive of the same model:

Code: Select all

ATA device, with non-removable media
	Model Number:       ST3000DM001-1CH166                      
	Serial Number:      W1F1QVN7
	Firmware Revision:  CC24    
	Transport:          Serial, SATA Rev 3.0
Standards:
	Used: unknown (minor revision code 0x0029) 
	Supported: 8 7 6 5 
	Likely used: 8
Configuration:
	Logical		max	current
	cylinders	16383	16383
	heads		16	16
	sectors/track	63	63
	--
	CHS current addressable sectors:    16514064
	LBA    user addressable sectors:   268435455
	LBA48  user addressable sectors:  5860533168
	Logical  Sector size:                   512 bytes
	Physical Sector size:                  4096 bytes
	Logical Sector-0 offset:                  0 bytes
	device size with M = 1024*1024:     2861588 MBytes
	device size with M = 1000*1000:     3000592 MBytes (3000 GB)
	cache/buffer size  = unknown
	Form Factor: 3.5 inch
	Nominal Media Rotation Rate: 7200
Capabilities:
	LBA, IORDY(can be disabled)
	Queue depth: 32
	Standby timer values: spec'd by Standard, no device specific minimum
	R/W multiple sector transfer: Max = 16	Current = ?
	Advanced power management level: 128
	Recommended acoustic management value: 208, current value: 0
	DMA: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 udma4 udma5 *udma6 
	     Cycle time: min=120ns recommended=120ns
	PIO: pio0 pio1 pio2 pio3 pio4 
	     Cycle time: no flow control=120ns  IORDY flow control=120ns
Commands/features:
	Enabled	Supported:
	   *	SMART feature set
	    	Security Mode feature set
	   *	Power Management feature set
	   *	Write cache
	   *	Look-ahead
	   *	Host Protected Area feature set
	   *	WRITE_BUFFER command
	   *	READ_BUFFER command
	   *	DOWNLOAD_MICROCODE
	   *	Advanced Power Management feature set
	    	SET_MAX security extension
	   *	48-bit Address feature set
	   *	Device Configuration Overlay feature set
	   *	Mandatory FLUSH_CACHE
	   *	FLUSH_CACHE_EXT
	   *	SMART error logging
	   *	SMART self-test
	   *	General Purpose Logging feature set
	   *	WRITE_{DMA|MULTIPLE}_FUA_EXT
	   *	64-bit World wide name
	    	Write-Read-Verify feature set
	   *	WRITE_UNCORRECTABLE_EXT command
	   *	{READ,WRITE}_DMA_EXT_GPL commands
	   *	Segmented DOWNLOAD_MICROCODE
	   *	Gen1 signaling speed (1.5Gb/s)
	   *	Gen2 signaling speed (3.0Gb/s)
	   *	Gen3 signaling speed (6.0Gb/s)
	   *	Native Command Queueing (NCQ)
	   *	Phy event counters
	   *	READ_LOG_DMA_EXT equivalent to READ_LOG_EXT
	   *	DMA Setup Auto-Activate optimization
	    	Device-initiated interface power management
	   *	Software settings preservation
	   *	SMART Command Transport (SCT) feature set
	   *	SCT Write Same (AC2)
	    	unknown 206[7]
	    	unknown 206[12] (vendor specific)
	    	unknown 206[13] (vendor specific)
Security: 
	Master password revision code = 65534
		supported
	not	enabled
	not	locked
	not	frozen
	not	expired: security count
		supported: enhanced erase
	320min for SECURITY ERASE UNIT. 320min for ENHANCED SECURITY ERASE UNIT.
Logical Unit WWN Device Identifier: 5000c5005cf95bbc
	NAA		: 5
	IEEE OUI	: 000c50
	Unique ID	: 05cf95bbc
Checksum: correct
Regards,
Clive

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cgrenier
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Re: Seagate Where did my disk go???

#4 Post by cgrenier » 02 Jan 2019, 13:55

"setting max visible sectors to 5860533168 (permanent)" looks good, the remaining of the message not so good...
Try a cold restart of your computer and see if something has changed.
If it's still bad, you may have to contact a data recovery company.

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