HPE Single Point of Connectivity Knowledge (SPOCK) – Here you can find all of the technical documentation from HPE on storage.
Best practice guides
HPE 3PAR StoreServ Storage best practices guide
HPE 3PAR StoreServ Storage and VMware vSphere 6 best practices
Implementing vSphere Metro Storage Cluster using HPE 3PAR Peer Persistence
Community sites
The 3PAR User Group – 3parug.com
HPE 3PAR StoreServ Community
HPE 3PAR StoreServ 7000 documents
HPE 3PAR StoreServ 7000 Storage Drive Support Reference
HPE 3PAR StoreServ 7000 Product Documentation