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Windows 7: External hard disk unaccessible

06 Jul 2015   #11
dragonballz4

Windows 7
 
 

Hi,i am wondering i have the exact same drive from same company with same number of sectors.can i use that?


and i tried to run Seagate 2TB Hard Drive not responding, stops programs from working dmde but on search it shows i/o error.does that help?

Meanwhile while i am preparing the rescue disk should i run photorec or is it dangerous to run?

should i use ddrescue -r3 -n -S -v /dev/sdb /dev/sdc recovery.log [ENTER] or this ddrescue -d -f -r3 /dev/sda /dev/sdb /media/sdc1/Log/rescue.logfile???

can i stop ddrescue it between(turn off computer?)



My System SpecsSystem Spec
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06 Jul 2015   #12
jumanji

Windows 7 Home Premium 32 bit
 
 

It is long since I worked with ddrescue. Please go through this whole thread Best method/tool for cloning a failing HDD for Data Recovery? and also the many help articles on the net on how to use ddrescue especially what command string you should use. What all I can say is it is not very difficult.

Some people write the command string such that the log file is written to a third drive. If you use that strategy then you can use the exact same drive you have mentioned as your destination drive.. But if you start and stop then you should use the same setup with the same drives, so that when you start again, ddrescue could take the stop point from the log file on the third drive and continue.

This synchronisation problem won't be there if you write the logfile to the same destination drive.But this will require a destination drive larger than the source drive.

If you are confident that you can take care of the synchronisation then go ahead with 1TB Toshiba to 1TB Toshiba cloning.

Decide upon the appropriate command string accordingly.
My System SpecsSystem Spec
07 Jul 2015   #13
dragonballz4

Windows 7
 
 

I am using the following command
ddrescue -f -d -r3 -v /dev/sdb /dev/sdc /dev/sda6/recovery.logfile
Sdb is failing hd sdc is new one and sda6 is my laptop partition on while iam trying to save logfile.
It shows :error writing logfile /dev/sda6/recovery.logfile not a directory
Even when i replace dev with media:no such file or directory

Edit:Nevermind got it its copy.fingers crossed
My System SpecsSystem Spec
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07 Jul 2015   #14
jumanji

Windows 7 Home Premium 32 bit
 
 

What exactly did you do to overcome that problem?
My System SpecsSystem Spec
07 Jul 2015   #15
dragonballz4

Windows 7
 
 

i had mount the partition using mount /dev/sda6 /mnt
and use
ddrescue -f -r3 -d -v /dev/sda /dev/sdb /mnt/recovery/recovery.logfile

btw the speed is good it has done 100gb.does it mean it is not hardware problem?
Now going very very slow


Attached Thumbnails
External hard disk unaccessible-img_20150707_185836_hdr.jpg  
My System SpecsSystem Spec
07 Jul 2015   #16
jumanji

Windows 7 Home Premium 32 bit
 
 

Good going. Good info that should help others trying to run ddrescue.

Looks like it has finished copying all the good sectors - that is always fast.

6615 KB in bad sectors.Now it is in the first pass trying to read the bad sectors so marked in the log file. Naturally it is a slow process.

Then second pass and then third.

When cloning is finished, let us see how and what your cloned drive presents.
My System SpecsSystem Spec
07 Jul 2015   #17
dragonballz4

Windows 7
 
 

Quick question how to pause and resume ddrescue?
My System SpecsSystem Spec
07 Jul 2015   #18
jumanji

Windows 7 Home Premium 32 bit
 
 

My internet is a pain. Painfully slow I abhor doing anything with it.

Interrupt: CTRL+C.
Resume: re-run your initial ddrescue command.
My System SpecsSystem Spec
07 Jul 2015   #19
dragonballz4

Windows 7
 
 

Ok thanks
My System SpecsSystem Spec
09 Jul 2015   #20
dragonballz4

Windows 7
 
 

About 963344 mb was done when my computer crashed.so i put the hard disk in computer and was able to run chkdsk /f which found most of my files.but some files are damaged and some are completely missing.should i run the ddrescue again in case it missed them(it was still at 1st Pass)?
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