Refer to the diagrams in this section to upgrade a system DE2-24 disk shelves by introducing one or more DE3-24 disk shelves. In the following diagrams, the DE2-24 disk shelves have three I/O Module ports, while the DE3-24 disk shelves have four ports. See Cabinet and Cabling Guidelines for disk shelf intermixing guidelines.
Figure 462 Clustered ZS3-2 controllers with one HBA connected to one DE3-24 and three DE2-24 in two chains
Figure 463 Clustered ZS3-2 controllers with one HBA connected to one DE3-24 and four DE2-24 in two chains
Figure 464 Clustered ZS3-2 controllers with two HBAs connected to two DE3-24 and four DE2-24 in three chains