IBM Redbooks

Storage Area NetworkAt first glance NAS and SAN could seem virtually identical, and in truth many instances either will perform in a offered circumstance. And you would normally communicate to those storage devices employing a pretty standardized kind of communication- some thing like SCSI, serial attached storage, SATA commands, or some other really widespread way of referencing the storage on that storage device.

All networks developed with ConceptDraw PRO are vector graphic documents and are readily available for reviewing, modifying, and converting to a selection of formats (image, HTML, PDF file, MS PowerPoint Presentation, Adobe Flash or MS Visio XML). First, Fibre Channel gives considerably larger performance than a conventional TCP/IP network does.

A networking paradigm that delivers easily reconfigurable connectivity between any subset of computers, disk storage and interconnecting hardware such as switches, hubs and bridges. But as the quantity of servers deployed on a network rises, the complexity of managing isolated storage resources also rises and the case for deploying networked storage grows. For example, one particular current move by a important server and storage vendor enables its storage to straight connect to its blade servers, which may possibly make a storage network unnecessary. All the things was scattered everywhere, and managing all the data dispersed all through the network became a nightmare.

For enterprises of all sizes, the next significant evolution is toward virtualization of server and storage infrastructure. Higher availability to storage by use of various access paths: A SAN makes it possible for for various physical connections to disks from a single or many servers. It’s acquiring scary out there for the SAN people, as after everything is integrated in modular racks as component of the POD, then the job of allocating and managing storage may fall to the server or network admins in the future. This is a storage mechanism that you are connecting to the network, typically with an ethernet connection.

It remains to be noticed whether these developments are in the end a excellent issue for the storage guys, as the folks who make each servers and storage may perhaps have a leg up in offering standardized solutions with one particular assistance point of view.