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Oracle® ZFS Storage Appliance Customer Service Manual
For ZS3-x, 7x20 Controllers, and DE2-24, Sun Disk Shelves
PCIe Risers: There are three risers per system, each attached to the rear of the motherboard. Each riser supports two PCIe cards (which are customer replaceable units (CRUs).
Motherboard: The motherboard includes CPU modules, slots for 16 DIMMs, memory control subsystems, and the service processor (SP) subsystem. The SP subsystem controls the host power and monitors host system events (power and environmental). The SP controller draws power from the host 3.3V standby supply rail, which is available whenever the system is receiving AC input power, even when the system is turned off.
Power Distribution Board: The power distribution board distributes main 12V power from the power supplies to the rest of the controller. It is directly connected to the connector break out board and to the motherboard through a bus bar and ribbon cable. It also supports a top cover interlock kill switch. The power supplies connect directly to the power distribution board.
Storage Drive Backplane: The storage drive backplane includes the connectors for the storage drives, as well as the interconnect for the I/O board, power and locator buttons, and system/component status LEDs. The system has an 8-disk backplane. Each drive has an LED indicator for Power/Activity, Fault, and Locate.
The ZS3-2 controller's internal storage, power, and cooling components are described in the following figure and legend. A component identified as a field replaceable unit ( FRU) must be replaced by trained Oracle service technicians.
Figure 2-8 ZS3-2 Controller Storage, Power, and Fan Components
Figure 2-9 ZS3-2 Controller Internal Cables