[kwlug-disc] Checking a USB disk for errors

Khalid Baheyeldin kb at 2bits.com
Thu May 15 22:54:31 EDT 2014


On Thu, May 15, 2014 at 9:55 PM, Khalid Baheyeldin <kb at 2bits.com> wrote:

> The method I used is to connect the drive to the laptop, unmount the NTFS
> filesystem that is on it, and then do:
>
> time dd if=/dev/sdb bs=16mb of=/dev/null
>

It is finally done ...

# time dd if=/dev/sdb bs=16000k of=/dev/null
61047+1 records in
61047+1 records out
1000204886016 bytes (1.0 TB) copied, 28626.2 s, 34.9 MB/s

real    477m6.269s
user    0m0.296s
sys     19m33.457s

That is 7.95 hours ...
-- 
Khalid M. Baheyeldin
2bits.com, Inc.
Fast Reliable Drupal
Drupal optimization, development, customization and consulting.
Simplicity is prerequisite for reliability. --  Edsger W.Dijkstra
Simplicity is the ultimate sophistication. --   Leonardo da Vinci
For every complex problem, there is an answer that is clear, simple, and
wrong." -- H.L. Mencken
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