In Part 1 of Usable Capacity Comparison between vSAN/VxRAIL and Nutanix, we’ve learned Nutanix provides more usable Capacity along with greater capacity efficiency, flexibility, resiliency, and performance when using Deduplication & Compression as well as Erasure Coding.
I also asked the question Is there a way to improve usable capacity for vSAN and provided four examples (below).
1) Use a single disk group so only one SSD’s worth of capacity is “lost” to cache
2) Use more SSDs and/or higher capacity SSDs per disk group
3) Use Compression / Deduplication
4) Use Erasure Coding / RAID5 or 6.