Hello,
How were you planning to set this up?:
4 nodes each with 2x Disk-groups each composed of 1x 960GB SSD as caching-tier + 2x 3.84TB SSDs as capacity-tier?
There should be no problem with a set-up as per above provided all disks (and controllers) are on the vSAN HCL and of course that the 960GB SSDs are certified for use as All-Flash caching-tier.
Bob
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