My old harddisk was having I/O error last week so I tried to copy the data out to another new disk intending to rescue the data. I use
ddrescue -f /dev/sda1 /dev/sdb1 my_mapfile
After I use
ddrescue to clone the whole partition from old to new disk (it already partitioned upfront), I able to save my data and I am able to mount it and read my data in the new drive without problem.
Now the strange thing is when I do a
df, I have such output:
Filesystem 1K-blocks Used Available Use% Mounted on /dev/sdb1 64735862822350640424 1444576192909379016 -10495689665396945056 - /mnt/new_partition
If I do a ''df -hT'', I got this:
Filesystem Type Size Used Avail Use% Mounted on /dev/sdb1 jfs 56Z 2.0Z -9Z - /mnt/new_partition
Both the old and new partition is 2TB.
Anybody know why I can't get the 'Use%' output and why there is a 'Z' symbol there and negative 'Avail' reading ?
I didn't do any other tuning after done the
ddrescue cloning though.