Storage Area Network(SAN)
A storage area network (SAN) provides centralized storage for multiple servers to access over a network. SANs are useful for large networks that require more storage than a single server can offer, allowing terabytes of data to be accessible by multiple machines. The key components of a SAN include fiber channel switches that connect servers and storage devices, host bus adapters that interface storage with operating systems, and storage devices like fiber channel disks. SANs provide benefits like high storage capacity, reduced costs, increased performance, and improved backup and recovery compared to adding more individual servers. However, SANs also have disadvantages in being expensive to implement and maintain and requiring technical expertise.
Storage Area Network(SAN)
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- 3. Why we need to use SAN? While a single server can provide a shared hard drive to multiple machines, large networks may require more storage than a single server can offer. ï‚— For example, a large business may have several terabytes of data that needs to be accessible by multiple machines on a local area network (LAN). In this situation, a SAN could be setup instead of adding additional servers. Since only hard drives need to be added instead of complete computer systems, SANs are an efficient way to increase network storage. ï‚—
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- 6. Today we all familiar with server but we doesn’t know about SAN that’s why because we never seen SAN machine.  SAN is very expensive only big business afford it.  Only Cisco and Microsoft company provide course for maintain SAN CCNA CCNP 
- 7. •Communication System Provides Physical Connection. •Management Layer Provides Secure data transfer by arranging connection.
- 8. Components Fiber Channel Switch(SAN Febrics) :- It is connectivity provided for servers & storage devices. - The SAN Fabrics is made up to 2GB fiber channel switch. Hosts Bus Adapter :- It consists of Hardware & drivers Which act as an interface with operating system.
- 9. Storage Devices :- Different types of fiber channel and disks are available depending upon the storage requirement. Cabling & Cable Connectors :- It is physical wiring between all the components of SAN machine. Co-axial & Fiber optic cables are use.
- 10. Hardware & Software Requirement of SAN ï‚— ï‚— ï‚— ï‚— ï‚— ï‚— ï‚— ï‚—
- 11. Example INDIA Google. in UK Google.uk USA Google. us Server SAN Storage Area Network Google.com Main branch
- 12. SAN Vendors There are many companies which manufacture SAN machine. •Dell •HP •IBM •Oracle •Hitachi •Fujitsu
- 13. •Automatic Backup •High data storage capacity •Reduce Cost of multiple servers •Increase Performance •Decrease recovery problem •Data sharing •Improved backup and recovery •High performance
- 14. Disadvantages of SAN • It is very expensive • Require high level technical person • Hard to maintain • Not affordable for small business