Open Stack

In which order are machines terminated during a scale down action in an
auto scaling group

For example instance 1 & 2 were deployed in a stack. Instances 3 & 4
were created as a result of load.

When the load is reduced and the instances are scaled back down, which
ones will be removed? And in which order?

>From old to new (1->4) or new to old (4 -> 1) ?

Thanks

-- 
Maish Saidel-Keesing