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Vshah
Vshah

Reputation: 19

Azure Backup and how retention policies are executed

I had couple of question regarding azure backup

  1. what is Incremental Backup in Azure. --> Is it merge all the incremental backups together with full backup?
  2. And as per retention policies: For example, Daily retention policy - Backups are taken daily(Let's say today) at specific times(let's say at 4:00 PM)stored for specific days(let's say for 7 days). So after 7 days (i.e. on the 8th day)backup taken today at 4 PM will be deleted? and how we will be able to get data of that back up during recovery?

Upvotes: 1

Views: 11891

Answers (1)

Jason Ye
Jason Ye

Reputation: 13954

what is Incremental Backup in Azure. --> Is it merge all the incremental backups together with full backup?

Do you mean full backup + one day incremental backup can restore it? If I understand it correctly, the answer is no, we should keep all the incremental backups and full backup.

Difference between Full backup and incremental backup, please refer to this image: enter image description here

And as per retention policies: For example, Daily retention policy - Backups are taken daily(Let's say today) at specific times(let's say at 4:00 PM)stored for specific days(let's say for 7 days). So after 7 days (i.e. on the 8th day)backup taken today at 4 PM will be deleted? and how we will be able to get data of that back up during recovery?

Retention policies can only be applied on backup poins. Each recovery point behaves like a full point.

So, we will be able recovery your data with newest backup points.

Update:

About retention policy, if we select daily retention policy, backups taken daily are stored for seven days. Also Azure will create two recover points one day if we use Daily retention policy. enter image description here

More information about retention policy, please refer to this link.

Upvotes: 2

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