SAN Costs

Computerworld - Hardware
A storage-area network (SAN) requires Fibre Channel host bus adapters (HBA), fiber cables to connect them, Fibre Channel switches, Fibre Channel disks or disk arrays, and Fibre Channel-connected tape.
Expect to pay about $100,000 for hardware for a small SAN of, say, 10 servers, half a terabyte of storage and 16-port switches. Bigger SANs can cost well over $1 million.
Storage boxes, depending on their size, cost 3 to 8 cents per raw megabyte. A company investing in 2TB can expect to pay $100,000. Switches cost about $1,000 to $2,000 per port, and HBAs are going for $1,000 to $1,500.
Software
Again, the size of the network determines software costs, which can range from $20,000 to $200,000.
Related Costs
Labor and other implementation costs vary greatly, depending on factors such as whether the work is done in-house and the type of computing infrastructure involved. A reasonable ballpark figure for implementing a SAN for 40 to 50 servers is between $10,000 and $30,000. Other experts estimate the price range to be from $10,000 to implement a small SAN to $500,000 for a large, high-end network.
Other costs that are hard to quantify but must be considered include the cost of migrating existing data onto the new system, training, and installing or upgrading a data center to handle the new equipment.

Read more about Storage in Computerworld's Storage Topic Center.