login vsi company logo login vsi company logo 250x40

The value of correct sizing in the Cloud

The Cloud is rising and the growth predictions are insane. Often we aren’t even aware when we are making use of the Cloud. Think about Hotmail, Office 365, Citrix Cloud or even websites like Airbnb. Not owning the servers, like Airbnb does with houses, but also with their website back-end, isn’t the only advantage of the Cloud. Other advantages are obvious: scalability, flexibility, disaster recovery, etc. But those advantages come at a cost. With a pay-per-user model like Office 365, the costs are evident. But if you go to an Infrastructure-as-a-Service (IaaS) model it can become confusing. Choosing the right amount of cloud resources is crucial to get the best value for money.

The value of correct sizing in the Cloud

I can’t count the amount of times I have seen the Iceberg image on LinkedIn passing by. This image shows the advantages of cloud computing but also shows the disadvantages. The Cloud takes away much of the work, but the costs remain. Cloud providers will include them within the price of VMs/instances. This means within each VM or instance the costs of the (underwater) iceberg remains hidden and will be included in the subscription fee.

These cloud solutions are expensive with these hidden costs. If you don’t make use of the flexibility, like reducing the amount of VMs at night, the costs can make the Cloud a useless option. The same goes for the correct environment sizing. My colleague Brian showed earlier how easy it is to test desktops on AWS. If you undersize your environment, you will get a poor performance/user experience. But when oversizing, you would receive a high bill.

Let’s look at an example. If we assume the ideal density is like Brian tested: 42 users on a M4.2XLarge AWS instance. With those instances, we want to serve 2000 XenApp users. How much would these instances cost?

table 1 The value of correct sizing in the Cloud

So, let’s assume we don’t use the ideal density and use a lower number of users per instance (oversizing) as shown in the table below.

Table 2 The value of correct sizing in the Cloud

These examples show that user density is key. In this scenario, you could save up to 20K per month, or 240K a year. Therefore, you should test your ideal density before spinning up too many instances—using the right amount will save you a lot of money!

About the author

Jasper Geelen (@jaspergeelen) has a background in ICT and joined Login VSI as a pre-sales engineer in 2015. He loves drinking a lot of coffee (some might call him an addict). In his spare time, Jasper enjoys a beer and he is part of a football / soccer team. He also coaches a team of younger football players.


Tags: Login VSI, Cloud

Popular Blogs

Login VSI - Blog - 4 Things to Consider when Running Office 365 in the Cloud

4 Things to Consider when Running Office 365 in the Cloud

Recently a customer decided to move their entire VDI infrastructure into the cloud. The VDI environment was approximately 20,000 users. As you can imagine there are a lot of design decisions necessary to ensure the success of this migration. Continue Reading
What's New in Login PI 3.6?

What's New in Login PI 3.6?

Public API, Enhanced support for Published applications, RDS Broker/Gateway and SQL Databases! Last month we released a new version of Login PI 3 (3.6), bringing more features and functions to the product. The biggest additions are a RESTful Public Web API, improved support for Citrix Virtual Apps (Published Applications), a connector for a RDS Broker and Gateway and the ability to now connect the virtual appliance to a Microsoft SQL Server database. Continue Reading
Login VSI and Ymor Form Partnership to Deliver Performance Improvement to Business-Critical Applications

[Press Release] Login VSI and Ymor Form Partnership to Deliver Performance Improvement to Business-Critical Applications

The partnership offers a total solution for enterprise organizations to monitor and test business-critical applications from end-to-end via VDI or in the Cloud. Ymor offers various monitoring solutions, used to test and monitor the performance of critical business chains from end-to-end. In VDI environments, Ymor can now offer the monitoring solutions of Login VSI. Continue Reading
[Press Release] IGEL Expands Alliance with Login VSI; Integrates Login Enterprise into IGEL OS 11.03

[Press Release] IGEL Expands Alliance with Login VSI

Integrating Login Enterprise into IGEL OS 11.03 The combined solution enables IT organizations to leverage their IGEL infrastructure to continuously test the performance and availability of virtual and cloud workspaces. Continue Reading
Windows Virtual Desktop - Update - December 2019

Windows Virtual Desktop Enhanced in the Latest Update

A lot has already been written about WVD in the last months. And while I had my initial concerns on this service many people are suggesting that they are willing to move to a platform like WVD in the next two years. Continue Reading
How Using a Virtual User can Quantify the Performance of SAP and Citrix

How Using a Virtual User can Quantify the Performance of SAP and Citrix

When interacting with enterprise applications, the user experience is important. Users must be able to smoothly and efficiently interact with the application to be productive and achieve the goals of the enterprise. The applications are expected to be responsive, dependable, and consistent in their presentation. Continue Reading