Figure 5: CFG mirror images in the stack after adding unit 5
Synchronizing the CFG mirror images with CFG images
A CFG mirror image is updated whenever a CFG flash drive synchronization occurs in the
AU.
Agent Auto Unit Replacement
Use the enhancement to the
Auto Unit Replacement functionality
, known as Agent Auto Unit
Replacement (AAUR), to ensure that all units in a stack have the same software image by
inspecting units joining a stack and downloading the stack software image to any unit that has
a dissimilar image. AAUR is enabled by default.
Agent Auto Unit Replacement functions in the following manner:
System configuration fundamentals
26 Configuration — System April 2011