Connectivity method and transport protocols. NAS are attached via data networking technologies such as IP or other data network transport protocols, usually employing standard networking equipment used for ordinary networking transports. Usually gig Ethernet over fiber or copper with dedicated segments for storage traffic. SANs are accessed via storage networking techniques which do not involve IP or other data network transport protocols and use specialized switching equipment optimized for storage networking protocols. It's arguable whether performance is any different these days (in fact, with multipath links, NAS may be faster these days).
________________________________ From: Linux on 390 Port on behalf of John Summerfield Sent: Tue 10/23/2007 7:12 PM To: [email protected] Subject: SAN NAS People here have shown forbearance before, so I'll test my luck again;-) I know both provide disk storage on a network, and one's higher-performance than the other, but.... When is a Tb of storage a NAS and when is it a SAN? ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
