HP StoreOnce Backup - Manual (Page 13)

Secure Erase
Secure Erase can be enabled for all store types. This feature enables allows secure erasure of data
that was backed up as part of a regular backup job. The Secure Erase feature can only be enabled
after store or library creation (edit the store or library to enable Secure Erase). All data written to
disk once Secure Erase is enabled will be securely erased upon data deletion. For example, you
may have unintentionally backed up confidential data and need to be sure that it has been securely
erased. Work with the backup application to trigger the Secure Erase, for example by forcing the
format of a cartridge. The backup application sends the request to delete the data and the deletion
is carried out as part of the Housekeeping function.
WARNING! To immediately remove data, ensure the backup application is configured correctly.
Rotation and retention policies may need to be revisited to ensure that the data is expired.
NOTE: The Secure Erase process may take some time depending on the Housekeeping workload.
Only chunks not referenced by any other items can be securely erased. If a chunk is referenced
by another item which is not marked for Secure Erase, then the referenced chunk will not be erased,
securely or otherwise. Use the backup application when performing a Secure Erase on stores,
shares, or libraries that have Secure Erase enabled.
Security Features 13