About Storage Configuration : About Edge settings
  
About Edge settings
You can configure and modify connectivity with Edges under Configure > Manage: Edges.
Edge Identifier
Specifies the identifier for the Edge. This value must match the value configured on the Edge. Edge identifiers are case sensitive.
Blockstore Encryption
Specifies the encryption type from the drop-down list (listed from the least to the most secure).
No encryption
Disables data encryption.
Using AES_128 bit key
Encrypts data using the AES cryptographic key length of 128 bits.
Using AES_192 bit key
Encrypts data using the AES cryptographic key length of 192 bits.
Using AES_256 bit key
Encrypts data using the AES cryptographic key length of 256 bits.
Add Edge
Adds the new Edge to the running configuration. The newly added device appears in the list.