Cabling Guidelines for Adding an Oracle Storage Drive Enclosure DE3-12C

The Oracle Storage Drive Enclosure DE3-12C disk shelf can be directly connected to an Oracle ZFS Storage ZS9-2 controller, to other Oracle Storage Drive Enclosure DE3-12C disk shelves (singles, pairs, or multiples), and to Oracle Storage Drive Enclosure DE3-24 disk shelves. The disk shelf can also be connected to an Oracle ZFS Storage ZS9-2 controller in a system that includes Oracle Storage Drive Enclosure DE2-24 disk shelves in separate chains.

Because Oracle Storage Drive Enclosure DE3-12C disk shelves are similar to Oracle Storage Drive Enclosure DE3-24 disk shelves, they follow the same general guidelines described in Cabinet and Cabling Guidelines.

The following figure illustrates the possible cable connections for the I/O Module ports in a pair of Oracle Storage Drive Enclosure DE3-12C disk shelves. Note that port B (middle port) is not used nor supported. The cable colors distinguish separate cables and do not reflect the actual cable colors. For an overview of the Oracle Storage Drive Enclosure DE3-12C components, see Oracle Storage Drive Enclosure DE3-12C in Oracle ZFS Storage Appliance Customer Service Manual, Release OS8.8.x.

Figure showing two Oracle Storage Drive Enclosure DE3-24 disk shelves with callouts for each port A and port C in each I/O Module, and with the two disk shelves cabled together using the appropriate ports and I/O Modules.

1 Top disk shelf in an Oracle Storage Drive Enclosure DE3-12C disk shelf pair: Port A connects to controller 0.	2 Top disk shelf in an Oracle Storage Drive Enclosure DE3-12C disk shelf pair: Port C connects to port A in the peer disk shelf's upper I/O Module.	3 Top disk shelf in an Oracle Storage Drive Enclosure DE3-12C disk shelf pair: Port C connects to controller 1.
4 Bottom disk shelf in an Oracle Storage Drive Enclosure DE3-12C disk shelf pair: Port C connects to controller 1 as a secondary path.	5 Bottom disk shelf in an Oracle Storage Drive Enclosure DE3-12C disk shelf pair: Port C connects to port A in the peer disk shelf's lower I/O Module.	6 Bottom disk shelf in an Oracle Storage Drive Enclosure DE3-12C disk shelf pair: Port A connects to controller 0 as a secondary path.

The following figure illustrates multiple Oracle Storage Drive Enclosure DE3-12C disk shelves in a single chain. The cable colors distinguish separate cable paths and do not reflect the actual cable colors.

Figure showing multiple Oracle Storage Drive Enclosure DE3-12C disk shelves in a single chain.

The following figure shows clustered Oracle ZFS Storage ZS9-2 MR controllers with two HBAs each connected to one Oracle Storage Drive Enclosure DE3-12C disk shelf in a single chain.

Figure showing clustered Oracle ZFS Storage ZS9-2 MR controllers with two HBAs each connected to one Oracle Storage Drive Enclosure DE3-12C disk shelf in a single chain.

The following figure shows clustered Oracle ZFS Storage ZS9-2 MR controllers with two HBAs each connected to two Oracle Storage Drive Enclosure DE3-12C disk shelves as a pair in a single chain.

Figure showing clustered Oracle ZFS Storage ZS9-2 MR controllers with two HBAs each connected to two Oracle Storage Drive Enclosure DE3-12C disk shelves as a pair in a single chain, as a replacement for one Oracle Storage Drive Enclosure DE3-24C disk shelf.