Hey everyone, Is anyone here experienced with SAN, Dell EMC Avamar, PPDM, or Data Domain? I'm looking for beginner-friendly study notes

I'm looking for some guide in learning
Storage technologies - PMAX, UNITY, ISILON, SAN, NAS Backup technologies - Avamar, PPDM, DATA DOMAIN
I'm covering dell provided documentation, but still it would be helpful if any other suggestions