Business-critical applications requires high level of performance, availability, security and scalability.

So, a new breed of storage solutions known as an intelligent storage system has evolved

These systems has an RAID arrays which controls the management, allocation & utilization of storage resources.

These systems has a cache with large amount of memory.

Components of Intelligent storage system

It consist of four component such as

Front-end:

• It provides the interface between the storage system & the host.

• It consist of two components front-end ports & front-end controllers.

• Front-end ports enable hosts to connect to the intelligent storage system

• Front-end controllers- route data to & from cache via the internal data bus using command queuing algorithm first in first out, seek time optimization and access time optimization

Cache:

• This component enhances the I/O performance in an intelligent storage system.

• It improves storage system performance by isolating hosts from the mechanical delays associated with physical disks.

• Accessing data from cache takes less than a millisecond.

Back end

• It provides the interface between cache & physical disks

• The back end controls data transfers between cache & the physical disks, from cache data is sent to the back end & then routed to the destination disk

• For high data protection & availability, storage systems, are configured with dual controllers with multiple ports.

Physical disks:

• It stores data persistently

• Disks are connected to the back end with either SCSI or FC interface