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Abhilashhb Virtuoso

VDI Sizing Tools

Posted by Abhilashhb May 28, 2013

While Sizing a VMware VDI Infrastructure, we need to take a lot of things into consideration. What is the number of total desktops that are going to be provisioned, how many desktops will be used concurrently, what's the IOPS requirement, What's the Bootstorm IOPS blah blah blah blah.

 

It takes a lot of calculations to complete the sizing and its a tedious work. After all we are humans, we are known for committing mistakes. Take for example you made a mistake at the beginning of the calculation and you didn't realize it. Imagine if you'll have to redo the whole thing. Even if you got through the whole process without committing mistakes and it turned out to be a good solution, what if another requirement comes for more users next time? More users = complex calculations. What would you do then?

 

Here's a tool developed by Andre Leibovici

http://myvirtualcloud.net/?page_id=1076

 

It makes your life easy as it asks you every detail that's possible and should be considered while sizing a VDI Infrastructure.

 

Off course there's a Excel sheet that is available on the VMware Communities but i would recommend it only for initial sizing of the infrastructure as it "assumes" lot of things by default.

http://communities.vmware.com/docs/DOC-18924

 

If you are a storage guy and you are more concerned about the performance of VDI and want to drill down to the IOPS level and see what kind of workloads are generated out of our infrastructure, you can check the link below which lets you work on the IOPS calculation part

http://www.unidesk.com/blog/iops-calculator

 

 

Remember, the way a infrastructure works is not only determined by what products are being used but also the kind of designing that goes into building it.

I have been working on Integration of vCOPS with other devices to explore the capability and the large scope of monitoring vCOPS can perform.

Here i would like to share some steps to monitor Cisco Switches using SNMP Adapter provided for the vCOPS.


Pre-requisites for this configuration


1. vCOPS 

2. Download the SNMP Adapter from here.

3. IP Address,community and SNMP version details of the Switch to be monitored.



Now Login into vCOps Admin UI with a user with appropriate access rights.


Click on Update ---> Browse the location of the Adapter (vcops-SNMPAdapter-X-XXXXXXX.pak) that was downloaded.


Click on Update.


1.jpg

Accept the EULA and Proceed further.


Once the Installation completes. It shows Update is successfull.


Now Login into vCOPS Custom UI with appropriate access rights.


Click on Admin---->Support-----> Info


On the Adapters Info Tab Click on the small icon  screw.jpg

 

Once this is done the SNMP adapter should show  up in the list


2.jpg

Now that the adapter is installed. We need to Add an adapter instance and credentials to start discovering the devices.


Select Environment---->Configuration----->Adapter Instances


Select Collector (vCOPS)


Select SNMP Adapter from the Adapter drop down menu.


adapter.jpg


Now Add the credential for the switches


cred.jpg


Click OK.


Now Discover the resources. Goto Environment overview---->List-----> Auto Discover resources


discover1.jpg

 

Now enter the details like IP range and map the credentials to the Instance as shown below

 

 

discover 2.jpg

 

Once these details are given. vCOPS starts discovering all the devices that are present in this range.

Wait for the discovery results to populate the results of the discovered resource.

 

 

After addning.jpg

 

Click on Import to just discover and not collect any data and collect to start collecting the data.

Click OK

 

Now all the devices will show up on your Custom dashboard widgets.