quick overview.
I have had a 4 node cluster working on 2016 for a couple years as a learning project. during that time my friends also played with it adding around 40 vms. the whole thing slowed to a crawl with even clicking on a start menu taking around 2 minutes to respond. I decided at add some SSD's as it was all 15K disks before but was told if I enabled s2d with no cache there is no supported method for adding cache.
I destroyed the disk and pool and upgraded all 4 nodes to 2019. disabled and re-enabled S2d and built a pool. tried to add a disk but the Gui is useless. power-shell'd a small disk then expand to proper size but I cant tell if I am properly caching to SSDs or not. is there any way to know? my SSDs are showing as journaling which is a good sign but I don't want to move any VMs back till I know my storage is good.
setup:
4 x dell r710s with dual e5-2697's
1 146gb 15k OS drive
5 146gb 15K storage drives
2 200GB industrail SSDs for cache
future setup
I have 2 more nodes with same hardrive/ssd setup but I want to make nodes work before adding 2 more.