How do i show an overview of all my drbd configured resources?

[giraffelife]

Notebook: http://bit.ly/2pwVDhZ
Man Page: http://bit.ly/2oI33it

On the primary node.

# drbd-overview 
 1:wwwdata/0  Connected Primary/Secondary UpToDate/UpToDate /var/www/html xfs 1021M 33M 989M 4% 

On the secondary node.

# drbd-overview 
 1:wwwdata/0  Connected Secondary/Primary UpToDate/UpToDate