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High availability for the components that manage 
BlackBerry
 OS devices

If you configured high availability for 
BES5
 before you upgraded 
BES5
 to 
BlackBerry UEM
, the configuration continues to work as expected after you complete the upgrade. The high availability configuration applies only to the components that manage 
BlackBerry
 OS devices.
For more information about configuring high availability for the components that manage 
BlackBerry
 OS devices, visit https://docs.blackberry.com/en/older-products/bes5 to read the 
BlackBerry Enterprise Server
 5 Administration Guide
.