HP Dc7700 HP Disk Sanitizer, External Edition - Page 4

Erase Methods Each erase method follows basically the same formula which is described in more detail below (See Figure 4). Note: Estimated times are based on an 80GB hard drive. Figure 4: Write Patterns for HP Disk Sanitizer, External Edition Write Patterns for HP Disk Sanitizer, External Edition Pass Erase Cycles Single 3 5 10 15 Estimated Time* 22 minutes 68 minutes 115 minutes 230 Minutes 348 minutes Description Writes zeros to the entire hard drive. Writes zeros, then ones, then random hexadecimal digits to the entire hard drive. Writes zeros, then ones, followed by two passes of random hexadecimal digits, then single pass of zeros. Writes zeros, then ones, followed by seven passes of random hexadecimal digits, then a single pass of zeros. Writes zeros, then ones, followed by twelve passes of random hexadecimal digits, then a single pass of zeros. Once you choose a secure erase method, you will be prompted to confirm the deletion of data from the hard drive. The utility will then begin erasing the drive. NOTE If, at any time, an input error occurs (such as typing an "M" rather than an "N", the application will print an error message. You will then be asked to input a correct selection. The only correct input to be entered is menu selections such as 1, 2, 3, "Y" or "N". Multiple Drives Prior to running HP Disk Sanitizer, External Edition, make sure you have correctly identified the drive to be erased. If running in interactive mode, there is a confirmation of the drive to be erased and opportunity to cancel the erase cycle before inadvertently destroying data. 4