What Does Storage Area Network Architecture (SAN Architecture) Mean?
Storage area network (SAN) architecture refers to the logical layout of a SAN infrastructure.
This architecture defines:
- How the SAN is logically created
- Components used
- Data storage and retrieval frameworks
- Device/host interconnectivity
- Other parameters/components essential for a SAN
Techopedia Explains Storage Area Network Architecture (SAN Architecture)
There are two types of SAN architecture, storage-centric SAN architecture and network-centric SAN architecture.
A SAN generally consists of three core components; therefore, SAN architecture is composed of:
- Hosts: These are the system/end devices that use the SAN services. This can include servers and computers on the network.
- Fabric: This consists of the interfaces such as fiber channel and host bus adapter that enable connectivity between the hosts and SAN infrastructure.
- Storage: This is the physical storage drives.
Typically, SAN architecture defines:
- Pool of storage used and how it is shared in between different servers or computers connected via the network
- Type of network or data transmission connection used between the key SAN infrastructure and all connecting nodes
- Placement of data depending upon the type of SAN architecture or topology
- Type of SAN topology being used
SAN architecture also includes SAN management applications and the overall data storage, consumption and retrieval policy that governs the SAN's resources.