I'm working on testing a vSAN configuration and I will be using SSD's as the read/write cache/buffer.
My question is, how can I monitor the heat map of cached blocks and get a cache hit rate to see how effective the caching is?
My setup is 4 HP DL360 hosts 48GB each, 8 Total cores (HT Disabled) with ~1.8TB of Local spindle datastore each and ~360GB of SSD's that consists of 4 120GB SSD's in a RAID 5 and will use the new version of vCenter and ESX 6.0.
The process below is a good indicator but what I need is a graphical representation for management to see the effective positives of the expensive SSD's.
Use VSAN Observer
you can find the details here from rawilson whitepaper
and KB article (KB2064240) on how to use RVC to configure vsan observer