Enabling Encryption on an Existing Volume with the Volume Encryption Conversion Start Command

1. Convert an existing volume (plain text volume) to encrypted volume by running below command.

cluster1::> volume encryption conversion start -vserver SVM_name -volume volume_name 

Example: 
Cluster1::> volume encryption conversion start -vserver svm2 -volume vol5 

Converting to encrypted volume

2. When the conversion operation is complete, verify that the volume is enabled for encryption:

Cluster1::> volume show -is-encrypted true 

Verifying encrypted volumes