Item Name Icon Description
• The identication LED blinks on the control panel of the chassis, to allow
users to nd the storage system when looking at the front of the rack.
• The identication LEDs on the storage controllers also blink, which allows
users to nd the storage system when looking at the back of the rack.
4 Hard drives — Can have up to 30 internal 2.5-inch SAS hard drives
SCv3000 and SCv3020 Storage System Back-Panel View
The back panel of the storage system contains the storage controller indicators and power supply indicators.
Figure 2. SCv3000 and SCv3020 Storage System Back-Panel View
Item
Name Icon Description
1 Power supply/cooling fan
module (2)
Contains a 1485 W power supply and fans that provide cooling for the storage
system, with AC input to the power supply of 200–240 V. In Dell 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:
• Optional 10 GbE iSCSI mezzanine card with four SFP+ ports or four RJ45
10GBASE-T ports
• One expansion slot for a front-end I/O card:
– Fibre Channel
– iSCSI
– SAS
• 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
conguration 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.
6
SCv3000 and SCv3020 Storage System Hardware