7420 Controller Hardware Overview
■
Motherboard: The motherboard is a FRU and includes CPU modules, slots for eight
DIMM risers, 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's 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 is a FRU and distributes main
12V power from the power supplies to the rest of the system. It is directly connected to
the Vertical PDB card, and to the motherboard through a bus bar and ribbon cable. It also
supports a top cover interlock ("kill") switch. In the storage controller, the power supplies
connect to the power supply backplane which connects to the power distribution board.
■
Vertical PDB Card: The vertical power distribution board, or Paddle Card is a FRU and
serves as the interconnect between the power distribution board and the fan power boards,
hard drive backplane, and I/O board.
■
Power Supply Backplane Card: This board connects the power distribution board to
power supplies 0 and 1.
■
Fan Power Boards: The two fan power boards are FRUs and carry power to the storage
controller fan modules. In addition, they contain fan module status LEDs and transfer I2C
data for the fan modules.
■
Drive Backplane: The six-drive backplane is a FRU and includes the connectors for the
drives, as well as the interconnect for the I/O board, Power and Locator buttons, and system/
component status LEDs. Each drive has an LED indicator for Power/Activity, Fault, and
Locate.
7420 System Drives - The 7420 M2 has two system boot drives in slots 0 and 1, configured
as a mirrored pair. Up to four read-optimized cache solid state drives (SSDs) may fill slots 2
through 5, in order. In a 7420 M2 clustered configuration, the number of SSDs installed in each
controller can vary.
7420 controllers have two system boot drives in slots 0 and 1, configured as a mirrored pair.
Up to four read-optimized cache SSDs, may fill slots 2 through 5, in order. In a 7420 clustered
configuration, the number of SSDs installed in both controllers must match.
For information about supported disks and capacities, refer to the Oracle Systems Handbook.
220 Oracle ZFS Storage Appliance Customer Service Manual • July 2016
To Next Page
Loading...
Need help?
General