Hardware Pool
A Hardware Pool provides a logical grouping of hosts and storage for the purposes of user access, hardware resource allocation, quota restrictions, and separation of VMs along organizational lines. The oVirt management server does not guarantee that hosts in the Hardware Pool can connect to the Storage in the Hardware Pool, so administrators should keep network topology in mind when grouping hardware resources.
A Hardware Pool can contain many hosts and storage pools, as well as sub-Hardware Pools. If the Hardware Pool is intended for running user VMs, then it must also contain one or more Virtual Machine pools. Except for the top-level 'default' pool, all hardware pools have a parent pool as well.
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Organization
Storage is organized with hosts on a hardware pool level. If a specific set of hosts need access to a specific set of storage these two sets are placed together in the Hardware Pool.
Quota Restrictions
Initially quotas are created unbounded, but may be changed to have restrictions are on a per Virtual Machine Pool basis.
- # of CPUs
- Amount of RAM
- ... others ...
User Access
Users are granted permission to create VMs within a Hardware Pool with a Virtual Machine Pool. Administrators are granted access directly to the Hardware Pool to allow them to view, create, and modify VM pools, hardware subpools, and quotas.
VM Migrations
Virtual Machines are allowed to migrate to any suitable Host within a Hardware Pool assuming it doesn't violate any quota restrictions placed on it. All the Host machines in a Hardware Pool have access to the same network storage -- all of the Storage Pools that have been defined on the Hardware Pool.
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