Posted by: Mudassir Ali | March 30, 2011

NAS versus SAN

http://www.hp.com/sbso/productivity/howto/nas/inside.html

NAS versus SAN
As highlighted earlier, SAN storage typically provides for applications’ capacity and performance requirements running on a dedicated infrastructure versus NAS functionality designed to optimize clients’ file sharing    
The following table includes an at-a-glance comparison of the two:    
NAS SAN
Type of data Shared files Block level data: e.g., databases
Cabling used Existing Ethernet LAN Dedicated Fibre Channel, iSCSI, SATA
Primary Users End-use clients Application servers
Disk access Through NAS appliance Direct access
For most businesses, NAS solutions consolidate extended storage for application servers and the data they manage, as well as for networked clients. Many IT environments deploy both SAN and NAS solutions together. You will learn more about the benefits and characteristics of NAS/SAN combinations later in this guide.    
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