Disk wiping: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
To wipe an | * To wipe an HDD by writing zeros to it: | ||
<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> | ||
| Line 8: | Line 8: | ||
<code># killall -USR1 dd</code> | <code># killall -USR1 dd</code> | ||
* To wipe a SSD by the ATA Security Erase command | |||
[[Category: Debian GNU/Linux]] | [[Category: Debian GNU/Linux]] | ||
Revision as of 11:25, 20 September 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
- To wipe a SSD by the ATA Security Erase command