Quantum LTO-8 HH SAS Technical Reference Manual page 39

Chapter 3: Installation
Updating firmware
The SCD presents a series of random characters during the firmware
download and update. The SCD briefly displays 8, then becomes blank
(not lit) when the firmware download and update is complete and there
are no errors. An error code will be displayed if a firmware download or
update error has been detected. The Ready light and the Fault light flash
briefly during the firmware download and update. The Ready light turns
On after the firmware download and update are complete.
QuantumLTO-8 HH SAS User's Guide 31