One of the added benefits of scale-out storage is the addition of multiple storage controllers. When you have more than 2 storage controllers and you lose one due to failure or maintenance like a rolling upgrade, you can do so with minimal impact.
Below are the results of 8-node cluster with 700 desktops running a Login VSI medium workload. One of the 8 storage controllers is shutdown to see the impact on the cluster. No desktops were rebooted or shutdown. IOPS dropped from 2,000 to 1,496 and latency had a brief spike from 4ms to 22.37 ms.
Things to think about for hyper-convergence?
* Is data spread out evenly that additional controllers will help?
* Do you have to vMotion VM’s to preform an upgrade? If so, can you meet your maintenance window?
* Will dependences on the Hypervisor management stack cause you to patch both your control and data plane?
See more proven results on scaling with the VMware Horizon 6.0 with the View RA