Kontron NetBootLoader - Manual (Page 25)

ID 1022-8317, Rev. 2.0
NBL Operation NetBootLoader
Page 17
2.11.1 NBL Flash Usage
With the introduction of a redundant NBL Flash device, the capability to support different ver-
sions of the NetBootLoader and provide backup capability was added. This functionality is sup-
ported by the NetBootLoader, the onboard IPMI management system, and onboard hardware
switching. The exact configuration is a function of application requirements.
2.11.2 NAND Flash Usage
For initial booting purposes, the NBL Flash has adequate storage capability for the NetBoot-
Loader, an operating system image, and, depending on the application requirements, even
space for a smaller application. However, once an operating system or application has been
started, neither the NetBootLoader nor the NBL Flash is available to the OS or application.
Without an onboard mass storage device, the OS and application and their related data are ful-
ly contained in RAM.
The NAND Flash, as a mass storage device, fulfills both the requirements of storing and start-
ing an operating system and applications, as well as providing high capacity local data storage.