Owners Manual

Item Name Icon Description
1 Power supply/cooling fan
module (2)
Contains power supplies and fans that provide cooling for the storage system,
with AC input to the power supply of 200–240 V. In Storage Manager , the power
supply/cooling fan module on the left side of the back panel is Power Supply 1 and
power supply/cooling fan module on the right side of the back panel is Power
Supply 2.
2 Storage controller (2) — Each storage controller contains:
• Mezzanine card with four SFP+ ports or four RJ45 10GBASE-T ports
• Expansion slots for I/O cards:
• Slots for optional front-end connectivity – Fibre Channel and iSCSI I/O
cards
• Slots for optional back-end connectivity – SAS I/O cards
• SAS expansion ports – Two 12 Gbps SAS ports for back-end connectivity to
expansion enclosures
• USB port – Single USB 2.0 port
• MGMT port – Embedded Ethernet port for system management
• Serial port – Micro-USB serial port used for an alternative initial configuration
and support-only functions
3 Power switch (2) — Controls power for the storage system. Each power supply/cooling fan module
has one power switch.
4 Power supply/cooling fan
module LED handle
—
The handle of the power supply/cooling fan module indicates the DC power status
of the power supply and the fans.
• Not lit – No power
• Solid green – Power supply has valid power source and is operational
• Blinking amber – Error condition in the power supply
• Blinking green – Firmware is being updated.
• Blinking green then off – Power supply mismatch
5 Power socket (2) — Accepts the following standard computer power cords:
• IEC320-C13 for deployments worldwide
• IEC60320-C19 for deployments in Japan
Power Supply and Cooling Fan Modules
The SC7020 series storage system supports two hot-swappable power supply/cooling fan modules.
The cooling fans and the power supplies are integrated into the power supply/cooling fan module and cannot be replaced separately. If
one power supply/cooling fan module fails, the second module continues to provide power to the
storage system.
NOTE:
When a power supply/cooling fan module fails, the cooling fan speed in the remaining module increases
significantly to provide adequate cooling. The cooling fan speed decreases gradually when a new power supply/cooling
fan module is installed.
CAUTION: A single power supply/cooling fan module can be removed from a powered on storage system for no more
than 90 seconds. If a power supply/cooling fan module is removed for longer than 90 seconds, the storage system
might shut down automatically to prevent damage.
SC7020 Series Storage System Hardware 7