![]() ![]() All of the forum posts that I have read seem only intelligible to those who have asked their specific questions based on their specific configurations. I can't seem to find anything truly useful and I am surprised that I can't, especially considering how widely used this product is. I have been searching for the definitive way to calculate how much storage I need for backup copies. R = number of rollbacks (or increments) according to retention policy (14 by default)ĭ = average amount of VM disk changes between cycles in percentĭata=11TB and will grow to 22TB in 3 years How many full backups wil I have? It's important to know to calculate the required disk space by using this formula:ĭata = sum of processed VMs size (actually used, not provisioned)Ĭ = average compression/dedupe ratio (depends on too many factors, compression and dedupe can be very high, but we use 50% – worst case)į = number of full backups in retention policy (1, unless backup mode with periodic fulls is used) ![]() We use Veeam 7, and thanks to the new backup copy job feature we can use GFS-rotation, but I'm wondering how many full backups the backup copy job will create in the folowing situation: ![]()
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