Load-balancing is a process of connecting multiple servers together in order to increase performance, reliability, and capacity for your web application. ZWNET offers an advanced, highly-reliable load-balancing solution that is perfect for any application that demands 100% uptime. It employs the latest in load-balancing technology to deliver the server performance your application demands. Coupled with ZWNET's network infrastructure, this load-balancing solution delivers unparalleled performance and reliability.
- What is Load-Balancing?
- What is Local Server Load-Balancing (LSLB)?
- What is Global Server Load-Balancing (GSLB)?
- What is difference between shared and dedicated server load-balancing?
- Can I cluster my existing server?
- Is all the traffic (www, ftp, telnet, etc.) automatically distributed?
- Will I be able to reach my servers directly?
- Can I add or remove servers from my cluster without downtime?
- How much traffic can a cluster handle?
- Do the servers in a cluster have to be identical?
What is Load-Balancing?
Load-balancing enables the distribution of internet traffic among multiple servers. The traffic distribution can be based on several different matrices - such as round-robin (whereby traffic is evenly distributed among all servers in the cluster) or weighted round-robin (where traffic is weighted more heavily.) Using this technology, multiple small servers can be used in the place of one large server. This not only provides high performance and throughput, it will also ensure redundancy. If a server in a cluster fails (or experiences an unusually heavy load) it will no longer receive traffic and the other servers will take over the load. Load-balancing will also allow for seamless scalability as well. Servers can be added or removed from the cluster on demand without any downtime.
What is Local Server Load-Balancing (LSLB)?
Local Server Load Balancing (LSLB) determines the best available server at any given time to which Internet traffic should be directed and dynamically distributes traffic to multiple Web servers located in a single ZWNET Data Center.
What is Global Server Load-Balancing (GSLB)?
Global Server Load-Balancing (GSLB) distributes Internet traffic between multiple ZWNET Data Centers and guards against localized network failures and power outages. Each GSLB site generates a global view of the health and responsiveness of your other GSLB sites to determine which sites are available and can provide the best response.
What is difference between shared and dedicated server load-balancing?
Shared Server Loading Balancing shares ZWNET-provisioned load balancing hardware with multiple customers for a low-cost, high performance traffic solution.
Dedicated Server Loadiing Balancing get hardware fully dedicated to your Web or application servers which is ideal for businesses with heavy site traffic patterns.
Can I cluster my existing server?
Yes, you can cluster your existing ZWNET servers. The applications on the servers may need to be set up correctly for load balancing, but any server at ZWNET can be used in a load-balanced configuration.
Is all the traffic (www, ftp, telnet, etc.) automatically distributed?
No. Load-balancing is done based on port. Traffic on individual ports can be distributed. During the setup of your load-balanced servers, you need to specify which types of traffic (which ports) you would like to have distributed.
Will I be able to reach my servers directly?
Yes. There will be a virtual IP that represents the cluster and each server will also have its own real IP that can be used to access the server directly.
Can I add or remove servers from my cluster without downtime?
Absolutely. One of the best things about load-balancing is that it will allow you to add or remove servers from the cluster without any downtime. It will also allow you to upgrade software or the OS on one server at a time while the cluster continues to function and serve content.
How much traffic can a cluster handle?
That depends on the individual servers in the cluster. The cluster can handle the total traffic that all the servers in the cluster can handle.
Do the servers in a cluster have to be identical?
No. You can have servers with different hardware and software specifications clustered together. This allows for great flexibility in your growth path. |
