Users Guide
Table Of Contents
- Dell Express Flash NVMe PCIe SSD User’s Guide
- NVMe PCIe SSD overview
- Supported operating systems
- Troubleshooting
- NVMe PCIe SSD carrier LED indicators
- Ungraceful system shutdown or power loss
- General errors
- NVMe drive properties intermittently not available in iDRAC
- NVMe PCIe SSD is not listed in the operating system
- I/O device error on write to NVMe PCIe SSD
- NVMe PCIe SSD performance measurement not optimal
- System becomes unresponsive when NVMe PCIe U.2 2.5-inch SSD is surprise removed
- System becomes unresponsive or fails when NVMe PCIe SSD is inserted
- Related documentation
- Getting help
Troubleshooting
NOTE: To get help for your NVMe PCIe SSD, see Contacting Dell EMC.
NVMe PCIe SSD carrier LED indicators
The LEDs on the NVMe PCIe SSD U.2 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
1. status indicator
2. activity indicator
3. 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 U.2 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.
Not applicable 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 Not applicable
Predicted failure The SMART feature set has
predicted a degradation or
fault condition.
On for 250 msec. Off for 250
msec.
Not applicable
3
8 Troubleshooting