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Hi there! |
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I have to copy some 100 G of files from one to another USB drive. Both |
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are formatted with NTFS, the destination drive already has a truecrypt |
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container file where I need to store the data into. |
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This is sort of working, but the speed is waayyyy too slow. After about |
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four hours, only 8 G were copied. |
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Looking at the cp -r output shows I see a bunch of files being |
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processed, then the output stops for some minutes. Sometimes for half an |
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hour. |
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|
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Top shows the mount.ntfs-3g process writing to the destination using all |
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resources of one of my two cores. iotop -d 10 shows this process mainly. |
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What I find strange is that this process is also reading from the drive |
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I am copying to, 1600 K/s compared to 260 K/s writing speed. Huh?? And |
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sometimes there is no I/O from this process during the ten seconds of |
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sampling time. I sampled for about half an hour, and iotop -oa shows |
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that only 20 MB were written. This will never finish. |
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|
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I used this command to mount the truecrypt container: |
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truecrypt --fs-options=uid=1000,umask=0007 -k /home/wonko/my.key |
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/media/My USB Drive/my_container /mnt |
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Adding 'async' to the fs-options did not help. |
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Any ideas? I've never used TrueCrypt before. |
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Wonko |
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