Dell PowerEdge Express Flash NVMe PCIe SSD SFF P4500/P4600 User’s Guide

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NVMe PCIe SSD Carrier LED indicators

The LEDs on the NVMe PCIe SSD 2.5 inch SFF carrier indicate the state of each physical device. Each NVMe PCIe SSD carrier in your enclosure has an activity LED (green) and a status LED (bicolor, green/amber). The activity LED flashes whenever the device is accessed.

Figure 1. NVMe PCIe SSD Device Carrier LED Indicators This figure shows the NVMe PCIe SSD LED indicators and release button locations

This figure shows the NVMe PCIe SSD LED indicators and release button locations

status indicator
activity indicator
release button

While the operating system is running, the status indicator provides the current status of the device. The following table lists the device states along with the associated LED indicator codes.

Table 1. NVMe PCIe SSD 2.5 inch SFF States and LED Indicator Codes . NVMe PCIe SSD 2.5 inch SFF States and LED Indicator Codes
State Name	Slot/Device State	Status LED (Green)	Status LED (Amber)
Device status off	The server or device is not powered up.	Off	Off
Device online	The device is powered up.	On	Off
Device identify (blink)	The device is identifying the slot location or is indicating the device has received a Prepare for Removal command from the host operating system.	On for 250 msec Off for 250 msec	Off
Device failed	The host operating system no longer has access to the device because the device is not responding or has encountered a critical error condition.	Off	On for 250 msec Off for 250 msec
Read only	The device will only service read operations.	Off	On for 250 msec Off for 250 msec
Predicted failure	The SMART feature set has predicted a degradation or fault condition.	Off for 250 msec On for 250 msec	On for 250 msec Off for 250 msec