HP XP Data Shredder Software - Manual (Page 11)

• Default (00-FF-00): If selected, defaults are used for Shredding operations. Data on a volume
is deleted by overwriting the volume with dummy data three times. When the volume is over-
written the first and third times, Data Shredder uses 00 (hexadecimal number) for the dummy
data. When the volume is overwritten the second time, Data Shredder uses FF (hexadecimal
number) for the dummy data.
• User: If selected, you define the dummy data and how many times the volume is overwritten.
For more information, see Defining Shredding operation settings .
• Write Data: Dummy data.
• Define: Enter up to four numbers or characters for the dummy data. You can enter only hexa-
decimal numbers, including numbers 0 to 9, and alphabetic characters A to F. If you enter
more than four digits, the entry is not accepted.
NOTE:
Dummy data is written two digits at a time. Therefore, enter an even number of digits in the
text box. If you enter an odd number of digits (for example, 123) and click Set, an error
message appears. If you enter more than four digits, the entry is not accepted.
• Random: Data Shredder randomly selects 4-digit hexadecimal numbers for the dummy data.
• Format List:
• NO.: Number of times volume is overwritten.
If you select User in the Write Data Type field, and specify number of times volume is overwritten,
Last Data appears in this column.
• Data: Contents of the dummy data. Dummy data is shown in sets of two digits with a space
between each set of digits. If Last Data appears in the NO. column, the dummy data is always
00.
• Set: Adds dummy data defined in the Write Data field to the Format List. You can add dummy
data a maximum of seven times.
If you select Define in the Write Data field, and click Set without entering anything in the text box,
an error message appears.
The Set button is not available when you select Default in the Write Data Type field.
• Delete: Deletes the selected row in the Format List field.
If you select a row with Last Data, and click Delete, an error message appears.
The Delete button is not available when you select Default in the Write Data Type field.
• OK: Registers settings in the Format List field, and closes the Shredding Param. pane.
• Cancel: Cancels all settings, and closes the Shredding Param. pane.
Confirmation pane for completing Shredding operations
When the Shredding operation is finished, a confirmation pane appears. This pane displays how
often the volume was overwritten and the dummy data used each time the volume was overwritten.
If you download a compression file (in .tgz format) by using this panel and then use file decompression
software to decompress the compression file, you will obtain binary files containing the results of the
shredding operation. The names of the binary files indicate CU and LDEV numbers of the shredded
volumes, and the number of times dummy data have been written to the volumes. For example, if a
binary file is named "01 11 03.bin", the CU number of a shredded volume is 01, and the LDEV
XP Data Shredder user guide 11