Features of SANs
SANS provide the following features that enable the servers and storage devices in an enterprise to exchange data efficiently:
High bandwidth:
Enables servers and storage devices to exchange data at the speed of 100 MBps. This ensures that backup of data stored on servers can be taken at a high speed.
Scalability:
Enables network administrators of an enterprise to increase the number
of storage devices connected to a SAN, when the storage requirement of the
enterprise increases.
Flexibility:
Enables network administrators of an enterprise to logically partition the storage space on a device into various parts,
called logical units and assign these logical units to different servers.
For example, network administrators can create multiple logical units on disk drives so that multiple database servers can share the same disk drive.
Using logical units to provide storage space to users ensures that the storage devices can be used according to requirement.
Globally available storage:
Enables users in an enterprise to access the storage devices from any location. This ensures that the
employees of an enterprise can access data stored in the enterprise while working at client sites.
Data sharing: Enables multiple servers to concurrently access a single file stored on a storage device. This improves the speed of data access from the storage devices.
High bandwidth:
Enables servers and storage devices to exchange data at the speed of 100 MBps. This ensures that backup of data stored on servers can be taken at a high speed.
Scalability:
Enables network administrators of an enterprise to increase the number
of storage devices connected to a SAN, when the storage requirement of the
enterprise increases.
Flexibility:
Enables network administrators of an enterprise to logically partition the storage space on a device into various parts,
called logical units and assign these logical units to different servers.
For example, network administrators can create multiple logical units on disk drives so that multiple database servers can share the same disk drive.
Using logical units to provide storage space to users ensures that the storage devices can be used according to requirement.
Globally available storage:
Enables users in an enterprise to access the storage devices from any location. This ensures that the
employees of an enterprise can access data stored in the enterprise while working at client sites.
Data sharing: Enables multiple servers to concurrently access a single file stored on a storage device. This improves the speed of data access from the storage devices.
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