Ungraceful System Shutdown Or Power Loss; Buffer I/O Error On Pcie Ssd During Full Initialization - Dell PowerEdge Express Flash PCIe SSD User Manual

State Name
Device identify (blink)
Device failed

Ungraceful System Shutdown Or Power Loss

If the host system experiences a power loss, the PCIe SSD may not have time to perform its internal shut down
procedure. In such an event, the device may enter a recovery mode which is indicated by the steady blinking of the
activity LED (On for 200 msec, Off for 200 msec). See figure PCIe SSD Carrier LED Indicators.
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 steady blinking stops and the device is fully accessible.
CAUTION: Removing a PCIe SSD from the system without preparing the device for removal first, causes the PCIe
SSD to enter recovery mode the next time it is inserted in the system.
NOTE: The operating system event log displays events during the time period the PCIe SSD is in recovery mode to
indicate when the device enters the recovery mode and displays a progress indicator until the device exits the
recovery mode.
NOTE: It is recommended to use power backup solutions for all Dell systems.

Buffer I/O Error On PCIe SSD During Full Initialization

There may be I/O errors in a PCIe SSD during full initialization, while running in a Linux environment. The I/O error
messages are displayed in the operating system event log.
WARNING: To prevent data loss, do not send any I/Os to the device during full initialization.
If you are not sending any I/Os to the device, these error messages may still be displayed in the operating system event
log. These I/O error messages do not indicate an issue with the device, and have no negative effects.
30
Slot/Device State
NOTE: Device online
state indicates the
OpenManage Server
Administrator is
installed and running
on the system.
The device is identifying the
slot location or is indicating
the device has received a
Prepare for Removal
command from the host
operating system.
The host operating system
no longer has access to the
device because the device
is not responding or has
encountered a critical error
condition.
Status LED (Green)
On for 250 msec
Off for 250 msec
Off
Status LED (Amber)
Off
On for 250 msec
Off for 250 msec