This is a reply on A bit on SANs and system dependencies by Eric
Lets first start by making a difference between entry level, midrange and high-end SAN's.
This is basically a bunch of disks with a network connection. The Oracle/Sun/StorageTek 2540 is an example for this category. This storage is aimed at lowcost shared storage.
This kind of storage generally features replication and more disks than entry level. HP EVA is what comes to …