好久沒加點油了，來個EMC和Cisco

在EMC的產品線中，DL系列並未支援iSCSI，但是在AX, CX, Symetrics都有支援iSCSI

其中的Data mover,可以以一般file server的概念比擬

Cisco will OEM the EMC NS500 and NS700 as Cisco FS5500 and FS5700 integrated NAS system.

WAFS, Cisco提出的NAS延伸概念, 全名是Wide-Area File Service,主要概念是希望NAS可以有跨WAN的應用，以MS Windows CIFS的架構，Across WAN is a challenge

Network Storage Virtualization for NAS and file servers，虛擬化不只可以放在SAN的概念上，Cisco and EMC也認為NAS也可以做到虛擬化，整合各項NAS儲存設備

Cisco推出WAE系列的產品因應NAS跨WAN的需求，WAE的全名是WAN Application Engine，基本上，我認為這是一項router + cache的產品
產品目前有WAE-NM, WAE-511, WAE-611, WAE-7326

EMC推出Invista產品，是一項network-based storage virtulalization 的具體產品，configuration 有:
Invista Cabinet
Metadata Storage
Control Path Cluster
IP Routers
DPCs/Virtulizer

Invista is Software Based and Out-Of-Band Architecure

Cisco MDS9000 series support VSAN technology and can routing Inter-VSAN data. Supporting IP security and remote management.