The main alternative to storage area network is Network Attached Storage.
At first glance, the differences appear to be few but it is imperative that you have a complete understanding of both before making a decision to buy either.
In very simplistic terms, a NAS is less expensive than a SAN.
Storage area networks tend to be better suited to a large organisation with multiple locations and servers. They tend to have a higher performance than a NAS and for a large organisation where a great deal of information is exchanged, this can be critical.
Benefits of Storage Area Networks over Network Attached Storage
SANs tend to be faster than a NAS.
SANs tend to be more expensive than a NAS. This is not because the storage is expensive but the initial equipment can be prohibitive for some budgets.
SANs offer very good data protection, i.e. it is difficult to access information unless you have the authority to do so.
SANs are more resilient, i.e. they are less likely to go wrong.
SANs are better when huge amounts of storage are required.
Benefits of Network Attached Storage over a Storage Area Network
NAS can be easily and inexpensively installed.
NAS is cheaper than SAN.
NAS requires less maintenance than SAN.
NAS are easy to set up and use. An administrator is required for a SAN and requires special training in order to maintain and configure the implemented SANs.
There are large a number of benefits why a storage area network or network attached storage is better suited according to an organisation’s requirements, size and technical needs.
Both SAN and NAS have their merits and some would argue that their NAS system is extremely fast and equally secure as a SAN. Both are extremely good solutions but it is advisable to speak to a couple of credible suppliers that have expertise of both.