Only one product is featured in detail in this section, Managed Server HSM. Other Open Systems products exist, IBM's TSM has an HSM component, while EMC DiskXtender and MoonWalk from Australia are both Open HSM products. If you would like to see your favourite product in this list, write a short paragraph, and send it to me.
Managed Server HSM from Camino Software is a pure HSM product. It can manage Windows versions from 2000 to at least 2012 and also Apple-MAC, NetApp and OES Linux servers as clients, and either needs cheap disk installed on the network, or it can write to a TSM interface or an EMC Centerra.
The Key to MSHSM is the 'Policy Engine'. This contains sets of Migration Profiles and Volume Rules.
The following page shows examples of defining a Migration Policy, including Migration rules, Deletion policies, and Volumes Rules.