Upgrade stalls, terminal session reports "This system is undergoing a dedupNT to dedupDB migration."

ISSUE

Use an SSH client such as  PuTTY to access the Unitrends system at the command line level.  Note:  Ensure you have the OS password to access the Unitrends system’s command line.  The OS  password may differ from the password used to access the User Interface.

After logging to a cli session, the message below is immediately display.

########################################### 
########################################### 
#This system is undergoing a dedupNT to # 
#dedupDB migration. Please refrain from # 
#stopping or starting any processes. # 
#Contact Unitrends Support with questions.# 
########################################### 
########################################### 
 

RESOLUTION

This message is not necessarily an error.  It indicates that the system deduplication engine is being upgraded from the legacy dedupNT engine to the optimal dedupDB engine.

If this message persists for longer than 2 hours, Unitrends support should be consulted.

CAUSE

The deduplication engine upgrade is performed as part of the 10.1 upgrade after the proceeding prompts are accepted.

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