Disk wiping
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 86 MB/s, so 1 TB disk takes about 3h 15m.
To print transfer statistics (to stderr):
# killall -USR1 dd
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 86 MB/s, so 1 TB disk takes about 3h 15m.
To print transfer statistics (to stderr):
# killall -USR1 dd