VERY SLOW GPT SCAN on a 5TB Disk

How to use TestDisk to recover lost partition
Post Reply
Message
Author
fawasme
Posts: 3
Joined: 26 Jan 2016, 01:45

VERY SLOW GPT SCAN on a 5TB Disk

#1 Post by fawasme » 26 Jan 2016, 01:51

Hi,

Could you guys help me out how to improve the revoery of several partitions, some HFS Mac and some NTFS on a 5tb USB 3.0 Drive?. A friend of mine unplugged the hard disk while doing a Windows Checkdisk and the Partitions are now gone.

All I see is a "Recovery" Partition listed as MS Data, don't really know what kind of recovery this Partition is....it's a 32GB Partition. Probably whoever formatted my drive left that partition there, don't know.

The thing is the harddisk scanned for lost partitions for 24 hours now and its on 5% only!

Thanks in advance for sharing your knowledge with this guy! :-)

JP.-

Sponsored links

User avatar
cgrenier
Site Admin
Posts: 3571
Joined: 18 Feb 2012, 15:08
Location: Le Perreux Sur Marne, France
Contact:

Re: VERY SLOW GPT SCAN on a 5TB Disk

#2 Post by cgrenier » 26 Jan 2016, 16:39

Please provide the testdisk.log file content

fawasme
Posts: 3
Joined: 26 Jan 2016, 01:45

Re: VERY SLOW GPT SCAN on a 5TB Disk

#3 Post by fawasme » 27 Jan 2016, 19:06

Thanks for replying.

Im trying to scan the Physical Drive 2. 5TB Drive. It has been running for 60 hours and still on 7%.
It is reading cylinder 6000/759999.


Log file next:



Mon Jan 25 22:39:58 2016
Command line: TestDisk

TestDisk 7.0, Data Recovery Utility, April 2015
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
OS: Windows 7 (7601) SP1
Compiler: GCC 4.9, MinGW 3.11
Compilation date: Apr 18 2015 13:02:07
ext2fs lib: none, ntfs lib: 10:0:0, reiserfs lib: none, ewf lib: 20120504, curses lib: pdcurses build 3401
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive0)=1000204886016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive1)=320072933376
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive2)=5000981073920
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive3)=8103395328
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\C:)=999543767040
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\D:)=320069435392
filewin32_getfilesize(\\.\E:) GetFileSize err Función incorrecta.


filewin32_setfilepointer(\\.\E:) SetFilePointer err Función incorrecta.


Warning: can't get size for \\.\E:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\F:)=494931968
filewin32_getfilesize(\\.\G:) GetFileSize err Función incorrecta.


filewin32_setfilepointer(\\.\G:) SetFilePointer err Función incorrecta.


Warning: can't get size for \\.\G:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\H:)=34359738368
filewin32_getfilesize(\\.\I:) GetFileSize err Función incorrecta.


filewin32_setfilepointer(\\.\I:) SetFilePointer err Función incorrecta.


Warning: can't get size for \\.\I:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\J:)=8103394304
Hard disk list
Disk \\.\PhysicalDrive0 - 1000 GB / 931 GiB - CHS 129201 240 63, sector size=512
Disk \\.\PhysicalDrive1 - 320 GB / 298 GiB - CHS 41345 240 63, sector size=512
Disk \\.\PhysicalDrive2 - 5000 GB / 4657 GiB - CHS 76000 255 63, sector size=4096
Disk \\.\PhysicalDrive3 - 8103 MB / 7728 MiB - CHS 985 255 63, sector size=512
Drive C: - 999 GB / 930 GiB - CHS 129116 240 63, sector size=512
Drive D: - 320 GB / 298 GiB - CHS 41344 240 63, sector size=512
Drive F: - 494 MB / 472 MiB - CHS 118 64 32, sector size=2048
Drive H: - 34 GB / 32 GiB - CHS 522 255 63, sector size=4096
Drive J: - 8103 MB / 7727 MiB - CHS 985 255 63, sector size=512

Partition table type (auto): Intel
Disk \\.\PhysicalDrive2 - 5000 GB / 4657 GiB
Partition table type: EFI GPT
New options :
Dump : No
Align partition: Yes
Expert mode : No

Analyse Disk \\.\PhysicalDrive2 - 5000 GB / 4657 GiB - CHS 76000 255 63
Bad GPT partition, invalid signature.
Trying alternate GPT
Bad GPT partition, invalid signature.
Current partition structure:
Bad GPT partition, invalid signature.
Trying alternate GPT
Bad GPT partition, invalid signature.

fawasme
Posts: 3
Joined: 26 Jan 2016, 01:45

Re: VERY SLOW GPT SCAN on a 5TB Disk

#4 Post by fawasme » 27 Jan 2016, 19:07

The drive seems to be physically fine, does not make any sounds like there is something wrong with it. Any suggestions?

User avatar
Fiona
Posts: 2836
Joined: 18 Feb 2012, 17:19
Location: Ludwigsburg/Stuttgart - Germany

Re: VERY SLOW GPT SCAN on a 5TB Disk

#5 Post by Fiona » 28 Jan 2016, 09:46

On EFI GPT partitions are listed as MS Data.
When you select a partition, at the bottom of the testdisk display, you´ll find info about your boot sector or superblock and file system.
TestDisk detects your partition table as Intel and not EFI GPT.
It's probably the cause, why your GUID partition table is listed as invalid.
Partition table type (auto): Intel
Disk \\.\PhysicalDrive2 - 5000 GB / 4657 GiB
Partition table type: EFI GPT

Bad GPT partition, invalid signature.
Trying alternate GPT
Bad GPT partition, invalid signature.
Current partition structure:
Bad GPT partition, invalid signature.
Trying alternate GPT
Bad GPT partition, invalid signature.
On windows 7 and servicepack 1, TestDisk 7.1WIP 32bit is recommended.
Can you repeat your diagnose without changing the partition table type to EFI GPT?
A scan would be much faster and I'd get more info about your current partition structure (partition table) and watch, is your partition table still invalid?
Did you remove your disk out of the enclosure?
Info about TestDisk / Analyse and your current partition structure would be important too.
Although Intel MBR supports only disks up to 2.2 TB but with 4k sector size, larger disk size can be supportd too.
You can check the partition table type under windows, running the disk management console and select your disk and right click into the left small square at the left.
If there is a description like convert it to GPT, you have an Intel MBR disk.
When there is a description like convert to MBR, your disk is already GPT.
Even if it's grayed out, which only means, that you already have some partitions on your disk.
Until yet, you shouldn't change anything and it's intended as a diagnose only.

Fiona

Post Reply

Who is online

Users browsing this forum: No registered users and 0 guests