Comparing VMware VSA & VMware Virtual SAN

             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
Description	Low cost, simple shared storage for small deployments	Scale-out distributed storage designed for virtualized/cloud environments
Form factor	Virtual Appliance	Built-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
Performance	No 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，

本文转自 五一 51CTO博客，原文链接:http://blog.51cto.com/728756/1340044