I’ve been using ddrescue to try and recover a failing 2 TB HDD.  It’s been 
running for close to three weeks now and it’s still only in pass 3 of copying. 
It’s recovered all but about 32 GB, and at the rate it’s going I may just be 
willing to write that data off and/or regenerate it.   I’d be a lot more 
comfortable with that if I knew what files would be affected, though.  What I 
would like to do is have it just finish where it’s at and mark everything 
non-tried as bad-sector, or give up a *lot* quicker, and then use fill mode to 
try and figure out which files are incomplete, as described in the 
documentation.  Is there a way to do this?

Here’s what ddrescue currently looks like:
$ sudo ddrescue -v -f -c 512 -T 60 -R /dev/sdb1 /dev/sda2 mapfile
GNU ddrescue 1.23
About to copy 2000 GBytes from '/dev/sdb1' to '/dev/sda2'
    Starting positions: infile = 0 B,  outfile = 0 B
    Copy block size: 512 sectors       Initial skip size: 39168 sectors
Sector size: 512 Bytes

Press Ctrl-C to interrupt
Initial status (read from mapfile)
rescued: 1968 GB, tried: 0 B, bad-sector: 0 B, bad areas: 0

Current status
     ipos:    1810 GB, non-trimmed:        0 B,  current rate:    1424 B/s
     opos:    1810 GB, non-scraped:        0 B,  average rate:    2733 B/s
non-tried:   32206 MB,  bad-sector:        0 B,    error rate:       0 B/s
  rescued:    1968 GB,   bad areas:        0,        run time:     31m 58s
pct rescued:   98.38%, read errors:        0,  remaining time: 88d  2h 27m
                              time since last successful read:          0s
Copying non-tried blocks... Pass 3 (backwards)

jason laughman

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