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ssd to hdd ratio recommendation for VSAN deployment

Ben Conner
Ben Conner asked
Last Modified: 2020-01-27

I'm considering converting to a VSAN architecture with a hybrid model and am curious if there is any recommended ssd vs hdd ratio that is recommended?  One host I already have a 500GB ssd in, but will need to buy one for the 2nd one.

Right now, I have 4.8TB of hdd space on the host that has the 500TB ssd drive, and 7.8TB of hdd space on the host that has no ssd on it.

Not all of this space is active VMs, and of those that are, 90% of the time they are lightly loaded.

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