Overview of Oracle ZFS Storage Appliance Racked System ZS5-2 Capacity Configurations

Capacity configurations take advantage of high-capacity disk shelves and are available in a base cabinet, or a base cabinet with one expansion cabinet. Two Oracle ZFS Storage ZS5-2 controllers and up to 16 Oracle Storage Drive Enclosure DE3-24C disk shelves can be supported, as shown in the following table.

Table 12-1 Oracle ZFS Storage Appliance Racked System ZS5-2 Capacity Configurations Components

Base Cabinet	Expansion Cabinet 1
Up to 8 Oracle Storage Drive Enclosure DE3-24C disk shelves Two Oracle ZFS Storage ZS5-2 controllers	Up to 8 Oracle Storage Drive Enclosure DE3-24C disk shelves

Configurations are offered in multiples of two disk shelves, as well as half-rack expansion: 1 disk shelf (minimum), 2, 4, 6, 8, 10, 12, 13 (half rack), 14, and 16 (maximum).

Each Oracle ZFS Storage ZS5-2 controller supports one or two SAS HBA cards. Two SAS HBA cards must be installed in each Oracle ZFS Storage ZS5-2 controller to support disk shelves in the expansion cabinet.

Clustered Oracle ZFS Storage ZS5-2 controllers that contain two SAS HBAs each support a high-availability configuration consisting of:

• Two chains of four disk shelves per disk chain in the base cabinet for a total of eight disk shelves, and

• One expansion cabinet that supports two chains with a maximum of four disk shelves per disk chain, for a total of eight disk shelves.

The cabinets are self-contained and pre-cabled following the required cabling methodology. Pre-racked system cabling tables and diagrams, which can also be used for planning future system expansion, are provided in the section Cabling Tables and Diagrams for Oracle ZFS Storage Appliance Racked System ZS5-2 Capacity Configurations.

Each cabinet contains 42 rack units (RUs), with RU01 on the bottom. Each Oracle ZFS Storage ZS5-2 controller occupies two rack units, and its location is referenced by the bottommost rack unit number. The top controller is referred to as Controller 1 and is located in RU20 in the base cabinet, and the bottom controller is Controller 0 in RU17. Because the Oracle ZFS Storage ZS5-2 controller occupies two rack units, the base cabinet contains a filler panel above each controller so the cabinet layout is similar to those of other Oracle racked systems with three-rack-unit controllers. The following figure shows the slot number for each HBA card, as well as the port numbers in each card.

Oracle ZFS Storage ZS5-2 Controller HBA Slot Numbers (Back View)

Each Oracle Storage Drive Enclosure DE3-24C disk shelf occupies four rack units, and disk shelves are normally installed from the bottom of the cabinet to the top for stability. To provide higher performance capabilities, disk chains are alternated from the bottom to the top of the base cabinet, with four disk shelves per chain and gaps between components. Therefore, the first disk shelf is in RU01, the second in RU05, the third in RU23, the fourth in RU27, the fifth in RU09, and so on in an alternating manner. As shown in the following figure, the Oracle Storage Drive Enclosure DE3-24C disk shelf has two I/O Modules (IOMs) with four ports each. In all cabling configurations, Port 1 and Port 3 are never used.

Oracle Storage Drive Enclosure DE3-24C Disk Shelf HBA Connections (Back View)