Use Case Overview:

RHHI now supports distributed volumes, and that has two use cases for users - 2) they can convert an existing RHV host into a RHHI host by making the local storage into a distributed gluster volume

As an administrator, I need to know how I can use the RHV Manager to create and manage local storage (single brick gluster volume as the storage domain, not the hosted engine storage domain) and local replicated (replica 3) storage in new and existing RHV 4.2.2 deployments (existing engine is expected).

This use case requires the following documentation:
(a) concept information that explains the advantages of implementation
(i) optimizes gdeploy configurations that cannot currently be performed by the engine. As a result, provides ability to evolve (an existing) RHV cluster or leverage (a new) RHV cluster
(b) task information that describes how customer can implement on
an existing RHV cluster or a new RHV cluster
(i) allows gdeploy node and volume configurations to be
performed while creating the volume from RHV
(ii) RHV Manager to enable lvmcache
(iii) engine's gluster volume optimized for virt store use case
(iv) scaling from 1 node to replica 3 (1x3)
(v) RHV Manager to provision multiple bricks from the same
device
(vi) convert RHV cluster to HC cluster