Wipe disks on deletion

Question:

How are disks removed on delete or migrate?

Environment:

OnApp versions later than 3.0

Answer:

Starting in the 3.0 version, it is possible to choose between format and wipe format (filling zeroes) when deleting or migrating a disk.

To enable disk wiping, you have to perform the following as root on your CP Server:
    1.    Set the wipe_out_disk_on_destroy parameter value to true in the  /onapp/interface/config/on_app.yml configuration file
    2.    Restart OnApp service (service onapp restart)

The wipe_out_disk_on_destroy value is set to FALSE by default.

PLEASE NOTE: If you are using the lvwipe patch which was available for 2.x, you should remove this before enabling this feature under to 3.0.