Small to medium enterprises are slowly shifting into virtual IT environments. It is possible that it will be difficult finding ways on how we can make the work much easier when adding and scaling the IT resources from time to time in line with the growth of the company. oVirt-Gluster Hyperconvergence will be the best solution to that dilemma.
oVirt is an open-source distributed virtualization solution, designed to manage your entire enterprise infrastructure. It is a centralized management for your IT’s virtualization and servers.
Gluster is a scalable, distributed file system that clusters/aggregates disk storage resources from multiple servers into a single global namespace[1].
Hyperconvergence is a type of infrastructure system with a software-centric architecture that tightly integrates compute, storage, networking and virtualization resources and other technologies from scratch in a commodity hardware box[2].
Combining them all, you can have a powerful Hyper-Converged Infrastructure, also known as HCI, which ensures high availability of the shared storage. A minimum of three (3) nodes is required since with a 2-noded deployment, Gluster cannot identify quorum loss and this could lead to data inconsistencies.
Standalone
2-Server
3-Server (Recommended)
Standalone setup will just serve as a Virtual Machine (VM) server for your company wherein all of your virtual machines will be gathered in a single box.
In a 2-Server setup, Data Recovery (DR) will be its main function. For its structure, there will be an on-premise server, and the other one is a cloud server. All the data on the on-premise server will be copied to the cloud server asynchronously. However, whenever your on-premise server is down, the oVirt where your VMs are gathered needs to be manually transferred to your cloud server. Basically, this needs quite of work to do.
The 3-Server setup is the recommended setup for HCI. Each of the servers perform synchronous copies of data so that whenever your primary server is down, one of the remaining servers will take place immediately. Also, the oVirt of another server will automatically take over the production every downstate of the primary server. And this is an advantage since you don’t have to manually transfer your oVirt to another server for it to continue its job.
As a conclusion, essentially, you can guarantee that your production will not be affected for any unforeseen events with the aid of Hyper-Converged Infrastructure (HCI).
