Comparing VMware VSA & VMware Virtual SAN

   在VMware官方发布Virtual SAN (VSAN)公开测试版不久,目前为止产生了很多对其的问题,许多人对vSphere Storage Appliance (VSA) and Virtual SAN (VSAN)之间的概念产生了混淆,故特此在此对两个解决方案进行差异对比。

   也许两者在概念中有部分相似处,但是他们本质上具有很多不同

Attributes

vSphere Storage Appliance

VMware Virtual SAN

DescriptionLow cost, simple shared storage for small deploymentsScale-out distributed storage designed for virtualized/cloud environments
Form factorVirtual ApplianceBuilt-in vSphere kernel
Ideal Targets
Small SMB
ROBO deployments
Enterprise
Commercial
Scalability
2 to 3 vSphere servers
Does not scale beyond 3 hosts


Minimum 3 hosts deployments
Scale out to vSphere cluster size
PerformanceNo SSD (low performance)SSD caching (high performance)
Functionality
Simple install & configure
Scales up to ~16TB usable storage
vCenter-integrated management
SSD caching and intelligent data placement
Rapid storage provisioning
Scale-out for large deployments
Granular scaling
Storage policy based management


希望以上简单对比能对两者进行更好的区分,