vSan performance

Orddie

2[H]4U
Joined
Dec 20, 2010
Messages
3,026
Im new to vSan and am doing this in my Lab as a learning experience.

I currently have a FreeNas environment with the following specs within FreeNas and get about 1 to 1.1 GB's in read and writes.
- 500GB SSD's in mirror Fdev x8
- intel Optane as log
freenas.png


for vSan, I have the following across 3 hosts and get about 1.6 read and 300ish write.
- 1x NVME 256GB (with high performance turned on) as cache
- 3x 500GB Sata drives
vsan.png


see attached pics. Look correct?
 

Orddie

2[H]4U
Joined
Dec 20, 2010
Messages
3,026
Tried doing a capacity that exceeds the cache devices?
Not sure I follow the logic here. Granted most servers come with a 1TB NVME as cache on the host with storage SSD’s at 960, but the lower cache (log) size in freenas appears to work out well.
 
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