First of all the basics of the disk sanitization process helps you understand what Process involved during the sanitization process and after when it is complete.
The disk sanitization process uses three successive phases or user-specified byte overwrite patterns for up to seven cycles per operation. The random overwrite pattern is repeated in each cycle.
Depending on the disk capacity, the patterns, and the number of cycles, the process is time consuming. Sanitization process runs in the background. You can immediately start, stop, and display the status of the sanitization process.
The sanitization process contains two phases:
1. Formatting Phase
2. Pattern Overwrite Phase
When the sanitization process is complete, the specified disks are in sanitized state. They are not returned to spare status automatically. We can make the sanitized disks to the spare pool before the newly sanitized disks are available to be added to another aggregate.
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