User`s guide

Appendix C: Using the Adaptec RAID Controller Utility ● 94
Secure Erasing Disk Drives
When you perform a secure erase on a disk drive, all data on that disk
drive is completely and irretrievably eradicated. Secure erase performs
three distinct writing passes to the disk drive being erased—it does not
just write zeros.
Performing a secure erase takes up to six times longer than clearing (or
zeroing) a disk drive. You may want to perform a secure erase only on
disk drives that contain confidential or classified information.
Note: To erase (or zero) a disk drive with non-classified information,
you may choose to format it (see page 99) instead, or clear it using
Adaptec Storage Manager—both options take much less time than the
secure erase option.
To begin a secure erase, select Secure Erase from the main ACU menu.
The selected disk drive(s) cannot be used until the erase is complete.