Item
Name
Icon
Description
3
Identification
button
Blinking blue (continuously)
– A command was sent by Dell
Storage Manager to the storage system to make the LED blink
so that users can identify the storage system in the rack.
The identification LED blinks on the control panel of the
chassis, to allow users to find the storage system when
looking at the front of the rack.
The identification LEDs on the storage controllers also blink,
which allows users to find 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
SC7020 Storage System Back-Panel Features and
Indicators
The back panel of the SC7020 contains the storage controller indicators and power supply indicators.
Figure 2. SC7020 Storage System Back-Panel View
Item
Name
Icon
Description
1
Power supply/
cooling fan module
(PSU) (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.
An LED between the top of the handle and the bottom of the
handle indicates whether the PSU has AC/input power.
•
Green
– A valid power source is connected to the PSU and
the power supply is operational.
•
Not lit
– The PSU is off or the power source has a fault.
2
Storage controller
(2)
—
Each storage controller contains:
•
Mezzanine card with four SFP+ ports or four RJ45
10GBASE-T ports
– Left two ports are for file storage.
– Right two ports are for block storage.
•
Expansion slots for additional I/O cards
6
SC7020 Storage System Hardware
