A company is setting up FlexCache in CVO to scale-out an on-premises system. What should the administrator do on the on-premises system?

To enable FlexCache between two separate clusters, such as an on-premises system and a Cloud Volumes ONTAP (CVO) instance, a secure communication channel must be established. This is achieved by creating a cluster peer relationship. A fundamental step in this process is generating a passphrase on one cluster, which is then used by the second cluster to authenticate and complete the peering connection. This action is a primary prerequisite before a FlexCache volume can be created on the CVO instance to cache data from the on-premises origin volume.

A. The new volume that acts as the cache is created on the caching system (the CVO instance), not the origin on-premises system.

C. FlexCache communication between the origin and cache clusters occurs over the secure intercluster network, not through standard client-facing NFS export policies.

D. The FlexCache feature license is required on the cluster that hosts the cache volumes, which is the CVO instance in this scenario.

1. NetApp ONTAP 9 Documentation, "FlexCache volume management overview": "Before you can create a FlexCache volume, the clusters and SVMs must be peered. You can create FlexCache volumes between SVMs on the same cluster or on different clusters." This establishes peering as a mandatory prerequisite.

Source: NetApp ONTAP 9 Documentation, Data protection and disaster recovery, FlexCache volume management.

2. NetApp Technical Report 4743, "FlexCache in ONTAP 9": "The first step is to set up a cluster peer relationship between the origin and the cache clusters. After the cluster peer relationship is established, you must set up an SVM peer relationship between the origin and the cache SVMs."

Source: TR-4743, Page 8, Section "Setting Up FlexCache".

3. NetApp ONTAP 9 Documentation, "Create a cluster peer relationship": Describes the cluster peer create command, which is used to initiate a peer relationship and generate a passphrase. "You can use the passphrase when you run the cluster peer accept command on the remote cluster to authenticate the peering request."

Source: NetApp ONTAP 9 Documentation, Cluster and SVM peering management, Commands for managing cluster peer relationships.