Wednesday, November 12, 2014

Datastore Cluster Performance View

Datastore Cluster came to alleviate some of the innumerous administrators pains, micro management of single datastores, virtual machine placement decisions, manually balance VM’s between datastores to avoid out of space or performance implications.
Thanks to that, we can now create a single object (Datastore Cluster), associate the datastores with it (don’t mix and match datastores with different characteristics, for God’s sake) and leave these tedious tasks with the system.

Eventually you will need to monitor the performance of it, here’s where this post comes to help.
vSphere Web Client has a Datastore Cluster performance View.

- Open vSphere Web Client;
- Select the Datastore Cluster you want to monitor;
- Select Monitor tab and then Performance Tab;

- Just change the view from Space to Performance.

Ohhh wait, Performance View is missing !!!!

Well, that happens to the best of us.
The thing is, Performance View will just be available if Storage DRS is enable on the Datastore Cluster, another thing to notice is that all hosts need to be greater than ESXi 4.1 (this one I could not test myself, if you have an older host give it a try and let’s know).

Let's enable it !!!

- Select Manage Tab;
- Select Storage DRS and click Edit;

- Just Turn On vSphere Storage DRS and click OK;

Nice !!! this time Performance View is available

 Ohhh wait again !!! there’s no data and the message says: Data is not collected for the current statistics level. Increase the statistics level to view the graph.

That’s because the way your vCenter Statistics is configured. You can raise it a little bit to get more than real time data (use with caution).
Also Storage DRS has it’s own statistics mechanism. Check KB2009532 for more details.

Once everything is set-up, you can see the performance data of your datastore cluster.

1 comment:

Anonymous said...

The part I liked most was: (don’t mix and match datastores with different characteristics, for God’s sake)

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I’m an IT specialist with over 15 years of experience, working from IT infrastructure to management products, troubleshooting and project management skills from medium to large environments. Nowadays I'm working for VMware as a Consulting Architect, helping customers to embrace the Cloud Era and make them successfully on their journey. Despite the fact I'm a VMware employee these postings reflect my own opinion and do not represents VMware's position, strategies or opinions. Reach me at @dumeirell

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