LED Color
Off
Solid green (up arrow)
Flashes green (up arrow)
Blinks red (down arrow)
Solid red (down arrow)
Front Panel Drive Status (1–12) LEDs
Note: SAS drives (1–12) include status arrow LEDs: UP for green and DOWN for red. NVMe drives
(13–16) include a single status LED that blinks green or red.
Note: For instructions on replacing drives, see "Installing Drives" on page 22.
e
S550 Rear Panel
The S550 rear panel includes the following components:
NVMe SSDs (13–16)
Power
Supply Unit 1
S550 Rear Panel
NVM
S
Four drive bays for additional appliance storage. The four drive bays (13–16) accept NVMe
E
TORAGE
PCIe SSDs (2.5 inch, 7mm). Drives are hot-swappable and include quick-release mechanisms and status
LEDs on the left front of the drive.
LED Color
Off
Solid green
Flashes green
Rear Panel Drive Status (13–16) LEDs
Chapter 3 English Instructions
Description
The disk has not yet been populated.
The disk has been populated.
The disk is being accessed.
The disk is offline.
The disk has encountered a fault.
Small Riser Card (Slot 8)
Power Switch
Power
ID
Supply Unit 2
LED
Description
The disk has not yet been populated.
The disk has been populated.
The disk is being accessed.
Large Riser Card (Slots 3–7)
2:3
2:2
2:1
2:0
1:0
0:0
LAN
MGMT
P
P
Serial
Port
18