Check cache status on MCC node

Is it posssible to check/monitor the amount of data the MCC node has cached?
Since the MCC downloads updates only when requested 3x by the clients, it would be good to know how much % of an update is actually cached.

This would give the most value when troubleshooting the MCC and the distribution of updates.
We have configured a MCC in our LAB with 10 connected clients, and the amount of data shared varies too much for each client.