Differential Backup - how to perform?

I tried to perform differential backup of couchbase installed in my local windows machine in various ways. Below is a step recommended in documentation examples

  1. Perform backup as full: cbbackup -m full http://localhost:8091 c:\cb\perfectbkp\ -u TenantMaster -p Prel2017*
  2. Created some sample documents in a bucket
  3. Perform backup as differential: cbbackup -m diff http://localhost:8091 c:\cb\perfectbkp\ -u TenantMaster -p Prel2017*

C:\cb\perfectbkp\2018-05-15T041940Z\2018-05-15T041940Z-full [36.7MB]
C:\cb\perfectbkp\2018-05-15T041940Z\2018-05-15T042120Z-diff [36.7MB]

Kindly ignore this post as it’s invalid