Let us start with the question“How are you deploying your NetScaler?”.

NetScaler has come through a long way of being a Kernel based Packet Engine to user mode Multi Core (nCore) platform and today you can Cluster these nCore devices together. All flavors of NetScaler (VPX, MPX and VPX over SDX) support Cluster mode of deployment. With release 10.1 we support most of the important features in Cluster mode and thus we see more and more customers deploying Cluster. We also recommend to deploy an HA pair as 2-node Cluster as it provides better compute power, throughput and overall system resources. Your investment is fully utilized in 2-node Cluster setup while you get performance and scalability advantages.

As we get more Cluster deployments coming up, it is important to understand what’s new and how you should approach it for optimal usage of resources. There are multiple topics of interest here and we will try and cover the key topics in next couple of blogs.

Quick facts about NetScaler Cluster:

  1. Cluster of NetScaler nodes
  2. Built on NetScaler nCore architecture
  3. All form of appliances can be Clustered
  4. Cluster can be formed with 2 to 32 nodes
  5. Remains single system image for end user
  6. No Chassis or new hardware required
  7. Nodes can be placed in different racks over L2
  8. Dynamic changes permitted in run time

 Some of the key benefits:

  1. Provides linear scalability
  2. Higher Throughput
  3. Configuration Scalability
  4. In-built Fault Tolerance
  5. Active-active Support
  6. Active-standby Support
  7. Unified Configuration
  8. Unified Monitoring
  9. Unified NITRO APIs
  10. Allows HA to be moved to Cluster

Here is how the logical topology looks like:

I hope you are figuring out the answer to the first question by now and yes Cluster mode deployment is the way ahead!! In this series of blogs we will learn more about different concepts and technologies involved in building this great architecture…