Chapter 13. Disk Sanitization - IBM N Series Hardware Manual

Disk sanitization
Chapter 13.
This chapter addresses disk sanitization and the process of physically removing data from a
disk. This process involves overwriting patterns on the disk in a manner that precludes the
recovery of that data by any known recovery methods.
It also presents the Data ONTAP disk sanitization feature and briefly addresses data
confidentiality, technology drivers, costs and risks, and the sanitizing operation.
This chapter includes the following sections:
Data ONTAP disk sanitization
Data confidentiality
Data ONTAP sanitization operation
Disk Sanitization with encrypted disks
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