Reference Guide
Table 2. 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 o The server or device is not
powered up.
O O
Device online The device is powered up. On O
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
O for 250 msec
O
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.
O
On for 250 msec
O for 250 msec
Read only The device will only service read
operations.
O
On for 250 msec
O for 250 msec
Predicted failure The SMART feature set has
predicted a degradation or fault
condition.
O for 250 msec
On for 250 msec
On for 250 msec
O for 250 msec
Ungraceful system shutdown or power loss
If the host system experiences a power loss, the NVMe PCIe SSD may not have time to perform its internal shut down procedure. In such
an event, the device may enter a recovery mode.
This recovery process is also known as rebuilding. During rebuilding, there is very limited access from the host operating system. After the
recovery procedure is complete, the device is fully accessible from the host operating system.
NOTE
: Dell recommends that you use power backup solutions for all Dell systems.
General errors
The following section describes general errors related to NVMe PCIe SSD.
NVMe PCIe SSD description is truncated
Description
In Windows 2012 R2 , the device description is truncated from the Device Manager > Disk Drives view. For
example, you see NVMe Dell Express Flash or NVMe Dell Express Fla SCSI Disk Device instead of NVMe Dell
Express Flash SCSI Disk Device.
Cause In Windows 2012 R2 , there is a new ag STOR_FEATURE_DEVICE_NAME_NO_SUFFIX that removes the
suffix in the device friendly name. This is only seen in Windows 2012 R2 and this ag is enabled by design of the
Windows
2012 R2 in-box driver. The Dell-provided NVMe driver uses the correct ag, but you may see the device
name truncated intermittently.
Solution This is a known issue and the message can be ignored.
26 Troubleshooting