Write-only head

If a hard disk drive has a write-only head, the disk is write enabled but read unabled. You can write file and record access log file on the disk via Internet. However you cannot change, delete, and even read the data on the disk(special firmware needed).   The servers which have write-only head hard disk drive can keep hackers away from hacking because they can never delete the log file.

Suitable for:      Recording access log file      Monitoring      Mail server