I have a customer who currently running Microsoft DPM to backup one of their system and the backup storage sizing is very straight forward which is 3 times the data.
We are in the way to convince them to go for Veeam and definitely the backup storage size would definitely less than that. I have a Veeam Sizing Tools.xlsx and I actually calculated based on their current environment. Followings are the input:
All VMs are windows 2012 and will be grouped into 1 single backup job.
Used data - 15TB
Delta Changes between each backup cycle (every 6 hrs) is very small and based on the expected growth provided by customer we came out a low 0.011% delta changes
Compression/dedupe ratio: 50% worse case
I would like to know only the backup size of the during first backup is run, therefore i put:
# of full = 1
# of rollbacks = 1
The calculated backup size was about 7.5TB which is amazing but it is quite unbelievable to us, am I getting the correct figure?