Cabling Mixed Oracle Storage Drive Enclosure DE3-24 and DE2-24 Disk Shelves to Oracle ZFS Storage ZS7-2 Mid-range (MR) Controllers

Refer to the diagrams in this section to upgrade or add to a system with Oracle Storage Drive Enclosure DE2-24 disk shelves by introducing one or more Oracle Storage Drive Enclosure DE3-24 disk shelves. In the following diagrams, the Oracle Storage Drive Enclosure DE2-24 disk shelves have three I/O Module ports, while the Oracle Storage Drive Enclosure DE3-24 disk shelves have four ports. See Cabinet and Cabling Guidelines for disk shelf intermixing guidelines.

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Adding Oracle Storage Drive Enclosure DE3-24 disk shelves to an existing Oracle Storage Drive Enclosure DE2-24 storage configuration requires SAS-3 cabling and retains the legacy cabling and methodology if possible. In most cases it is easier to re-cable using the new cabling methodology. Use active optical cables (AOCs) to connect Oracle Storage Drive Enclosure DE3-24 disk shelves to the controller, and use SAS-2 copper cables to connect Oracle Storage Drive Enclosure DE2-24 disk shelves to the controller. The following examples illustrate re-cabling configurations with Oracle Storage Drive Enclosure DE2-24 disk shelves to accommodate Oracle ZFS Storage ZS7-2 MR controllers and Oracle Storage Drive Enclosure DE3-24 disk shelves.