Disk wiping: Difference between revisions
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<code># dd if=/dev/zero of=/dev/sdX iflag=nocache oflag=direct bs=4M</code> | <code># dd if=/dev/zero of=/dev/sdX iflag=nocache oflag=direct bs=4M</code> | ||
The average speed is about | The average speed is about 100 MB/s, so 1 TB takes about 3 hours. | ||
To print transfer statistics (to stderr): | To print transfer statistics (to stderr): | ||
Revision as of 14:46, 31 August 2014
To wipe an hdd by writing zeros to it:
# dd if=/dev/zero of=/dev/sdX iflag=nocache oflag=direct bs=4M
The average speed is about 100 MB/s, so 1 TB takes about 3 hours.
To print transfer statistics (to stderr):
# killall -USR1 dd