VMware
vSAN ESA ReadyNode Hardware Guidance
The purpose of this document is to provide sample server configurations as directional guidelines for use with vSAN™. Use these guidelines as your first step toward determining the configuration for vSAN ESA(Express Storage Architecture)
How to use this document
  • Determine your workload profile requirement for your use case.
  • Filter and Search vSAN ESA ReadyNodeTM offerings to determine the approximate configuration that meets your needs
  • Use vSAN ESA VCG to pick a vSAN ESA ReadyNodeTM aligned with the selected profile from the OEM server vendor of choice.
vSAN ESA ReadyNode Hardware Guidance
Description vSAN-ESA-AF-2 vSAN-ESA-AF-4 vSAN-ESA-AF-6 vSAN-ESA-AF-8 vSAN-ESA-AF-HighDensity
Node Capacity (TB) (Min) 15 20 40 60 100
CPU (#cores) per Node (Min) 32 40 48 56 48
Memory (GB) (Min) 512 512 768 1024 768
Network (GbE) (Min) 1 x 25 1 x 25 2 x 25 1 x 100 2 x 25
Device Guidance:
  • Type(NVMe TLC):Mixed Use Devices (3DWPD)
  • Minimum Capacity:1.6TB or higher
  • Performance Class:Class F or higher
  • Endurance Class:Class D or higher( 3DWPD or higher)
Sizing Assumptions Used For vSAN ESA ReadyNodeTM Profiles
ESXi Boot
Network
  • (Dual port NIC) recommended for redundancy.
Device Capacity
  • The capacity point is for guidance only. You can choose different capacity points as long as Node Capacity and Performance/Endurance classes are met.
Number of Storage Tier Devices
  • The number of Storage Tier devices has an impact on the performance of vSAN ESA. The minimum quantity is 4 devices per node. We recommend configuring more for better performance.
Design Considerations Used For vSAN ESA ReadyNodeTM Profiles
Class of SSDsThe class of SSD you choose has a direct impact on the performance of your overall system.
Device Protocol The ReadyNode is certified with particular device type (NVMe). You are not allowed to change the device type.
Performance Classes for SSDs
SSD PERFORMANCE CLASSWRITES PER SECOND
F100000 - 349999
G350000+
Endurance Classes for SSDs
SSD ENDURANCE CLASSTB WRITES IN 5 YEARS
D7300