Access "Slash SAN costs"
This article is part of the Vol. 3 No. 1 March 2004 issue of Hot tips for buying storage technology
Saving dollars with distributed file systems A distributed file system delivers the benefits of network-attached storage (NAS)-like data sharing with the scalability of a storage area network (SAN). What's more, a distributed file system can eliminate the cost of spare systems. Systems participating in the distributed file system share access to a common data store, so if a server running an application fails, other participating servers can start the application and resume the work. Some examples of distributed file systems include the IBM's SANFS, Silicon Graphics' CXFS, Sistina's (now Red Hat's) GFS and Veritas' Clustered File System. (See "A simple design for a distributed file system"). It's possible with a distributed file system to build server farms consisting of inexpensive PC servers where each server has a single SAN connection and redundancy is provided through the farm. If a server fails or loses its SAN connection, it can be removed from the farm and file system; the client application can reconnect to another server. In general, it doesn't ... Access >>>
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