To be used most effectively, a network should have IP addresses defined for each node in the HCP system. This enables HCP to spread the processing load across all nodes for clients using that network.
If a node doesn’t have IP addresses for a given network, that node does not receive communications that come into the system on that network. However, a network is usable as long as at least one available node is assigned IP addresses for the IPv4 and IPv6 subnets defined for that network.
Depending on the number of nodes that have IP addresses for a network, the network can be in any of these states:
•Fully defined — A network is fully defined if all nodes in the system have IP addresses defined for the network.
•Partial — A network is partial if at least two nodes have IP addresses defined for the network and at least one node does not have any IP addresses defined for the network.
•Degraded — A network is degraded if exactly one node has IP addresses defined for that network.
A degraded network presents a single point of failure for clients using that network for system access.
•Empty — A network is empty if no nodes have IP addresses defined for the network. An empty network is not usable.
You cannot select an empty network for tenant management or data access purposes. You cannot select an empty, degraded, or partial network for use with replication.
© 2015, 2020 Hitachi Vantara LLC. All rights reserved.