When you create the cluster nodes that make up vRealize Operations Manager, the associated setup within your network environment is critical to inter-node communication and proper operation.

Networking Requirements

Important:

vRealize Operations Manager analytics cluster nodes need frequent communication with one another. In general, your underlying vSphere architecture might create conditions where some vSphere actions affect that communication. Examples include, but are not limited to, vMotions, storage vMotions, HA events, and DRS events.

  • The master and replica nodes must be addressed by static IP address, or fully qualified domain name (FQDN) with a static IP address.

    Data and remote collector nodes may use dynamic host control protocol (DHCP).

  • You must be able to successfully reverse-DNS all nodes, including remote collectors, to their FQDN, currently the node hostname.

    Nodes deployed by OVF have their hostnames set to the retrieved FQDN by default.

  • All nodes, including remote collectors, must be bidirectionally routable by IP address or FQDN.

  • Analytics cluster nodes must not be separated by network address translation (NAT), load balancer, firewall, or a proxy that inhibits bidirectional communication by IP address or FQDN.

  • Analytics cluster nodes must not have the same hostname.

  • Place analytics cluster nodes within the same data center and connect them to the same local area network (LAN).

  • Place analytics cluster nodes on same Layer 2 network and IP subnet.

    A stretched Layer 2 or routed Layer 3 network is not supported.

  • Do not span the Layer 2 network across sites, which might create network partitions or network performance issues.

  • One-way latency between analytics cluster nodes must be 5 ms or lower.

  • Network bandwidth between analytics cluster nodes must be 1 gbps or higher.

  • Do not distribute analytics cluster nodes over a wide area network (WAN).

    To collect data from a WAN, a remote or separate data center, or a different geographic location, use remote collectors.

  • Remote collectors are supported through a routed network but not through NAT.