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 Post subject: Tool to carve fragmented files
PostPosted: August 27th, 2017, 5:56 
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Joined: June 17th, 2017, 18:30
Posts: 28
Location: Russia
I'm currently working on a tool which is supposed to carve fragmented files, like, extracting fragmented JPEGs from a volume without referring to any kind of filesystem metadata. However, the process is very computationally expensive, and any practical speeds require pretty high-end hardware. If I ever was to sell the resulting tool, which would you prefer, - a standalone software with some ungodly hardware requirements, or a website where you can upload your disk image and get the recovered files back after a while, for a reasonable per-GB price?


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 Post subject: Re: Tool to carve fragmented files
PostPosted: August 28th, 2017, 18:38 
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Joined: August 18th, 2010, 17:35
Posts: 3246
Location: Massachusetts, USA
Likely option A. Customers are overly paranoid about data security.

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 Post subject: Re: Tool to carve fragmented files
PostPosted: August 28th, 2017, 18:49 
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Joined: July 12th, 2010, 4:38
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Location: Portugal
First option too.
Not easy to upload the entire image of a HDD.

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 Post subject: Re: Tool to carve fragmented files
PostPosted: August 29th, 2017, 13:31 
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Joined: June 17th, 2017, 18:30
Posts: 28
Location: Russia
Okay, thank you for the input.


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 Post subject: Re: Tool to carve fragmented files
PostPosted: September 28th, 2017, 10:58 
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Joined: June 17th, 2017, 18:30
Posts: 28
Location: Russia
Well, I have it now; not sure if I'm allowed to post a link, but if someone wants a license key to play with, PM me.


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 Post subject: Re: Tool to carve fragmented files
PostPosted: October 26th, 2017, 23:45 
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Joined: October 26th, 2017, 23:39
Posts: 1
Location: Russia
Alexey wrote:
Well, I have it now; not sure if I'm allowed to post a link, but if someone wants a license key to play with, PM me.

PM please


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 Post subject: Re: Tool to carve fragmented files
PostPosted: October 27th, 2017, 7:06 
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Joined: June 17th, 2017, 18:30
Posts: 28
Location: Russia
The download is now available at http://www.klennet.com/carver/

It currently works with JPEGs only. I made some provisions for CR2 and NEFs, but that part is still not ready.


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 Post subject: Re: Tool to carve fragmented files
PostPosted: October 28th, 2017, 7:14 
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Joined: August 15th, 2006, 3:01
Posts: 2532
Location: CDRLabs @ Chandigarh [ India ]
Hi,
Only 64 Bit No 32 Bit :(

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Website-> http://www.chandigarhdatarecovery.com


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 Post subject: Re: Tool to carve fragmented files
PostPosted: October 28th, 2017, 8:37 
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Joined: June 17th, 2017, 18:30
Posts: 28
Location: Russia
Given 8 GB RAM minimum requirement, yes, no 32-bit.


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 Post subject: Re: Tool to carve fragmented files
PostPosted: October 28th, 2017, 8:57 
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Joined: August 15th, 2006, 3:01
Posts: 2532
Location: CDRLabs @ Chandigarh [ India ]
Alexey wrote:
Given 8 GB RAM minimum requirement, yes, no 32-bit.



Well,
i have a case of fragmented jpg files .Lady clicked photos on a sony camera and formatted on a android phone .She was using a microsd in a adapter initially in camera .I will Try out in 64 bit .

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Amarbir S Dhillon , Chandigarh Data Recovery Labs
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Website-> http://www.chandigarhdatarecovery.com


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 Post subject: Re: Tool to carve fragmented files
PostPosted: October 29th, 2017, 17:09 
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Joined: December 4th, 2012, 1:35
Posts: 3161
Location: Adelaide, Australia
it is 2017 Amarbir.. ;-)


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 Post subject: Re: Tool to carve fragmented files
PostPosted: October 30th, 2017, 12:05 
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Joined: August 15th, 2006, 3:01
Posts: 2532
Location: CDRLabs @ Chandigarh [ India ]
Brother Haque ,
I am using Windows 7 Pro 32 Bit on most PC.Anyways I tried this 820kb tool on a very very powerful laptop the cpu was ok for this but the tool is a memory resource hog .My 8 gb physical memory was out after 2nd pass and in the third pass when its trying to to combine fragmented jpg it started creating virtual memory in windows and it passed 35gb then it crashed ,I think resource management should be done in the tool ,no idea how to test on live case now

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Amarbir S Dhillon , Chandigarh Data Recovery Labs
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com


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 Post subject: Re: Tool to carve fragmented files
PostPosted: October 30th, 2017, 12:55 
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Joined: May 13th, 2010, 11:17
Posts: 2358
Location: Kuwait
HaQue wrote:
it is 2017 Amarbir.. ;-)


Am still using this bootable flash for TREX :wink:


Attachments:
Win98_Trex.jpg
Win98_Trex.jpg [ 3.33 MiB | Viewed 8916 times ]

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 Post subject: Re: Tool to carve fragmented files
PostPosted: October 30th, 2017, 14:27 
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Joined: June 17th, 2017, 18:30
Posts: 28
Location: Russia
Amarbir[CDR-Labs],

How big is the media you were recovering for it to consume 35GB RAM?


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 Post subject: Re: Tool to carve fragmented files
PostPosted: October 31st, 2017, 10:02 
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Joined: August 15th, 2006, 3:01
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Location: CDRLabs @ Chandigarh [ India ]
Well,
I am not sure as i am in home once i saw your post but i think its 32 gb,You like remote access to check it

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Amarbir S Dhillon , Chandigarh Data Recovery Labs
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com


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 Post subject: Re: Tool to carve fragmented files
PostPosted: December 7th, 2017, 15:17 
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Joined: April 3rd, 2011, 0:19
Posts: 1863
Location: Providence, RI
Alexey wrote:
I'm currently working on a tool which is supposed to carve fragmented files, like, extracting fragmented JPEGs from a volume without referring to any kind of filesystem metadata. However, the process is very computationally expensive, and any practical speeds require pretty high-end hardware. If I ever was to sell the resulting tool, which would you prefer, - a standalone software with some ungodly hardware requirements, or a website where you can upload your disk image and get the recovered files back after a while, for a reasonable per-GB price?


How's this project going? I see on the website it now lists CR2 and NEF files. Any progress toward making it optimized and more useful for larger memory stores such as HDDs?

I know a wedding photographer who'd pay anything right now for a working program that could get back a shoot which was lost on a badly fragmented 4Tb drive.

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 Post subject: Re: Tool to carve fragmented files
PostPosted: December 15th, 2017, 16:22 
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Joined: June 17th, 2017, 18:30
Posts: 28
Location: Russia
Come January, probably I will optimize it enough to at least do a reasonable attempt against a hard drive. Currently, it will take impractically long time with any hardware imaginable.


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 Post subject: Re: Tool to carve fragmented files
PostPosted: May 25th, 2018, 5:33 
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Joined: May 25th, 2018, 5:24
Posts: 2
Location: https://diceus.com/
don't know if defragmenting would actually accomplish anything.

Since iSCSI LUNs are virtual block IO devices, the seek time optimization which a defragmenter provides would be of little value, since the chance that the read/write head on the HDD devices in the SAN being at the correct position for the next IO request would be about nil.

So, the time spent by the defragmenter to group the disk blocks for access performance would simply generate a lot of SAN disk IO would have no real effect.

Further, all defragmenters work on the basis of that there is no Read cache for the virtual disk. Almost all RAID controllers provide read cache, some even provide write cache. Finally, most SAN software provide read cache functionality. So, if you have predictive read cache the benefit of defragmenting is almost nullified.

Regards,SecretS


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 Post subject: Re: Tool to carve fragmented files
PostPosted: May 25th, 2018, 9:04 
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Joined: December 5th, 2011, 5:38
Posts: 1164
Location: Italy
https://www.cnwrecovery.com/


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 Post subject: Re: Tool to carve fragmented files
PostPosted: May 25th, 2018, 9:28 
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Joined: August 15th, 2006, 3:01
Posts: 2532
Location: CDRLabs @ Chandigarh [ India ]
Well,
this tool made by alexey always ended up crashing it was a resource hog

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Amarbir S Dhillon , Chandigarh Data Recovery Labs
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com


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