5 Chapter 5. Advanced techniques and functionality In this chapter, we describe advanced methods of working with IBM SAN32B-E4, IBM SAN768/384 with Encryption Blades, and IBM Storwize V7000. We provide an in-depth explanation of the technology of the encryption process, point to the key areas, and show how to avoid several potential errors. We describe the following topics in this chapter: Frame redirection zone Performance effect of the rekey and first-time encryption process Encryption solution sizing and planning Implementation of copy services with the encryption solution © Copyright IBM Corp. 2012. All rights reserved. 171