On Oct 23, 2007, at 6:12 PM, John Summerfield wrote:
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?
The difference, roughly, is whether your data is presented as files
or as blocks.
NAS tends to be some sort of storage appliance that presents an NFS
(or SMB, or other network filesystem) interface to the data, while
SAN is generally presented as a block device. SAN is less likely to
use IP as the transport, though certainly there are things like iSCSI.
Adam
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