
Chapter 15. IBM System Storage SAN Volume Controller attachment 539
15.2 SAN Volume Controller performance considerations
The SAN Volume Controller cluster is scalable up to eight nodes. The performance is almost
linear when adding more I/O Groups to a SAN Volume Controller cluster, until it becomes
limited by other components in the storage infrastructure. While virtualization with the SAN
Volume Controller provides a great deal of flexibility, it does not diminish the necessity to have
a SAN and disk systems that can deliver the desired performance.
In the following section, we present the SAN Volume Controller concepts and discuss the
performance ...