As businesses grow and find that the demands for network storage keep increasing, they follow a natural progression of storage environments. As direct-attach storage (DASD) on their Windows servers becomes insufficient, businesses frequently move on to network attached storage (NAS); or, if and when their storage needs mandate it, storage area networking (SAN).
The full promise of storage that is not directly attached to the server is best fulfilled by implementing a SAN, which has advantages in performance, reliability, availability, and provisioning. But the overwhelming benefit of SAN storage often gives storage administrators the false impression that by simply implementing a SAN and following the vendor’s instructions they will get the best possible performance and reliability from the SAN environment in their Windows Server-based network.
But at some point the SAN administrator realizes that the storage no longer performs as well as it once did. Investigation into the cause of the performance slowdown usually indicates problems with free space or available storage. The administrator may wonder what is causing all the additional unexpected I/O; but the easy answer, increasing the amount of storage available, is usually the one accepted. However, in many cases adding additional storage is unnecessary because the amount of storage on the SAN is not the problem.
Continue reading to learn more on how to maximize the performance of your windows SAN infrastructure.