vsan-esa-memory-tiering · 3 articles
vSAN ESA and memory tiering
What ESA changes for performance, density and capacity planning in modern VCF environments.
Every article
Capacity planning: ESA vs OSA, what really changes
Switching from OSA to ESA changes how you size a vSAN cluster. We compare the two models side by side: usable capacity, headroom, and the new rules.
NVMe memory tiering: 2x VM density, and what it costs
At the recommended 1:1 ratio, Broadcom reports 2x VM density with a 5–10% HammerDB performance loss; this guide defines the eligibility conditions.
RAID-5/6 on vSAN ESA: what replaces the write penalty
ESA replaces read-modify-write with a durable log and aligned full-stripe writes, while vSAN 9.1 still documents a possible RAID-1 advantage.
