A virtual IP address (VIP) is an IP address that doesn't correspond to an actual physical network interface. Uses for VIPs include network address translation, fault-tolerance, and mobility. In EFM, VIP will help you to make auto-failover operation seamless from Application point of view. With the help of VIP, after the auto-failover there is no
If master node failed then EFM will send notification to DBA about the master node failure and perform auto-failover to your most up to date standby server. So, that server will become master server.
As a best practice and the recommended way cluster should have minimum three nodes. Primary with Two Secondary Members (P-S-S) These deployments provide two complete copies of the data set at all times in addition to the primary. These replica sets provide additional fault tolerance and high availability. If the primary is unavailable, the replica
OpsManager is part of Enterprise subscription. as per the Subscription Policy Mixed Environment is not supported.
If standby node failed then EFM will send notification to DBA about the standby node failure. Here, in this case only standby server failed hence it will not perform auto-failover.
Yes., there are few Prerequisites and configuration needed to setup OpsManager. In this Webinar we have covered this in detail. You may like to watch this on-demand. please refer: https://ashnik.com/resources/webinars/how-to-automate-deployment-monitoring-and-manage-mongodb-clusters/
On AWS, you have an option to configure mongodb from Micro., you may like to choose your requirement of the workload. For Complete AWS EC2 Instance Types. Please Refer: https://aws.amazon.com/ec2/instance-types/
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