What is core group in WebSphere application server?
A core group is a grouping of WebSphere Application Server cell processes. A core group can contain standalone servers, cluster members, node agents, and the deployment manager. A core group must contain at least one node agent or the deployment manager.
What is core ha?
A Core Group (HA Domain) is a component of the high availability manager function. It can contain stand-alone servers, cluster members, node agents, administrative agents and the deployment manager. Core Group.
What is HA manager?
The HAManager/HAM (High Availability Manager) Framework is an integral WebSphere Application Server (WAS) part designed to provide an infrastructure for making selected WAS services highly available. It is present in all JVMs including Deployment Manager and Node Agents.
Why do we need high availability?
High availability (HA) is a component of a technology system that eliminates single points of failure to ensure continuous operations or uptime for an extended period. High Availability solutions ensure your systems, databases, and applications operate when and as needed.
What is the difference between redundancy and high availability?
The primary goal of high availability is to ensure system uptime even in the event of a failure. Redundancy, on the other hand, is the use of additional software or hardware to be used as backup in the event that the main software or hardware fails.
What is HA configuration?
HA configuration overview. The purpose of an HA configuration is to reduce downtime when a zone or instance becomes unavailable. This might happen during a zonal outage, or when an instance becomes corrupted. With HA, your data continues to be available to client applications.
How can I improve my high availability?
5 Best Practices for Maintaining High Availability
- Achieve geographic redundancy.
- Implement strategic redundancy.
- Leverage failover solutions.
- Implement network load balancing.
- Set data synchronization to meet your RPO.
What is difference between HA and DR?
High Availability (HA)—refers to a system or component that is continuously operational for a desirably long period. Disaster Recovery (DR)—involves a set of policies and procedures to enable the recovery or continuation of vital infrastructure and systems following a natural or human-induced disaster.
What is the difference between HA and cluster?
GitHub Enterprise Server High Availability Configuration (HA) is a primary/secondary failover configuration that provides redundancy while Clustering provides redundancy and scalability by distributing read and write load across multiple nodes.
What is the difference between FT and HA?
FT is notable for the absence of downtime, while HA requires time to reboot. In addition, HA works on each cluster, while FT works on each virtual machine.