The latest vCenter option “Heartbeat” can protect your virtual infrastructure from a vCenter downtime, and provides vCenter high availability but what, exactly, does it check and attempt to protect you from? OS failures on the vCenter server, Hardware failure of the vCenter server, Network failures affecting the vCenter server, Application failures on the vCenter server (like the vCenter services or SQL server failure where the vCenter data is located) – The backup vCenter server’ll even take over for the primary server if there’s significant application performance degradation. How does it work? vCenter Heartbeat server works by replicating all vCenter configuration and data to the secondary passive server using (hopefully) a dedicated network channel. The secondary server is really up all the time, with the live configuration of the active server, but an IP packet filter is masking it from the active network.
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