Backup VM / Incremential / Retentions

[tonybegood]

Hi,

i use Veeam Backup& Replication v9.5 for save my hyper-v server, with 26 VMs

I try to understand how work veeam for retention policy. my config :

- Incremental backup
- Active full backup on the sunday
- restore points to keep on disk : 7

In my schedule, i setup run job automatically 'periodically every 4 hours' and allowed hours only 4am to 6am 12 to 2pm and 8pm to 10pm

That working well, but sometimes i have issues with space disk, and i see on the backup disk file who date of lot of weeks.

I would like stay in this configuration, and to have minimum 10days of backup.

what i need to change ?

thanks

[Natalia Lupacheva]

Hi Tony,

let me clarify some points about retention policy.

You will get Active full backup each Sunday, and then the Job will create incremental backups (until the next Sunday and next Active full).
We can consider each Active Full backup as a start of the new backup chain.

So, if you have configured 7 restore points to keep on disk, that would mean:
- Active full is created on Sunday, 19th of July;
- Incremental backups are created until Saturday;
- Next Active Full is created on 26th of July;
- Previous chain is not removed until the new one will consist of Active Full + 7 incrementals.

Retention policy gives you a time gap to decide if you still need the old backup data from the previous chain or not.

Could you please describe why in this case you need to keep backups for minimum 10 days if you have Active Full each week?
Maybe we could find the better retention policy configuration (or Active full backups creation schedule) which would exactly match your request.

Thanks!