Re: [Bug-ddrescue] Question about "splitting failed blocks" processing

[andrew zajac]

Hi Tom.

You used a log file, so yes, you can stop the process and resume later.  Just issue the same command (you can use different switches, just keep the same input,output and log file parameters).

One caveat is that you will need to either mount the filesystem(s) on the image as read-only or copy them and then work on the copy.  if you make any changes to the data on the image, continuing the recovery procedure may inflict mode data loss rather than than get more data back.

Regards,

Andrew Zajac

--- On Mon, 12/27/10, Tom Williams <address@hidden> wrote:

From: Tom Williams <address@hidden>
Subject: [Bug-ddrescue] Question about "splitting failed blocks" processing
To: address@hidden
Received: Monday, December 27, 2010, 2:22 PM

Hi!  I'm running ddrescue 1.11 on Ubuntu 10.10 Linux to recover data
from a dying 160GB hard drive. 

The process has been running non-stop for about 65 hours now and has
been in the "Splitting failed blocks" phase for about the past 12 hours
or so.  I have no idea how long it will take for the process to finish
but I'm wondering if I can safely cancel it to access the data that has
already been recovered.  Is this possible?  I'm recovering the data from
the bad hard drive to a good hard drive which is connected to the system
using a USB external hard drive enclosure.

This is sample status output:

address@hidden:~$ !507
sudo ddrescue /dev/sdc /dev/sdh nawanna-rescue.log


Press Ctrl-C to interrupt
Initial status (read from logfile)
rescued:         0 B,  errsize:       0 B,  errors:       0
Current status
rescued:   159820 MB,  errsize:    221 MB,  current rate:        0 B/s
rescued:   159828 MB,  errsize:    213 MB,  current rate:        0 B/s
   ipos:   156842 MB,   errors:     971,    average rate:     723 kB/s
   opos:   156842 MB,     time from last successful read:     9.9 m
Splitting failed blocks...

Given how close to 160GB the process seems to be, I don't want to cancel
it but it's been "this close" for the past 12 hours, at least.

Can I safely cancel the process or should I just let it run?

Thanks!

Peace...

Tom

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