Incremental Backup

[handian.sudianto]

Hello,

If the full backup run on Sunday and incremental example run on Monday and Tuesday, my question is the incremental on Tuesday will compare between full backup and server condition on Tuesday, or will compare between full backup + Monday incremental and server condition on Tuesday?

[Mildur]

Hello

Incremental backup sessions protects new or changed since the last backup session. In your example, it’s changes since Monday.
What the product does:
- gets the change block tracking list from vSphere
- reads the changed blocks since the last backup session of this job
- processes the blocks and sends them to the vib file in your backup repository

If change blocking is disabled or not working, all blocks on the source disk must be read by the veeam proxy. But it is still only an incremental backup.

Best,
Fabian

[handian.sudianto]

Hello Fabian

So for Tuesday incremental this mean VBR will get changed block from Monday? If incremental on Monday deleted, this mean we can't restore to Tuesday version?

[Mildur]

So for Tuesday incremental this mean VBR will get changed block from Monday?

Blocks since the last backup session. If you start your backups daily at 10 am, the Tuesday job session will catch all changed and new blocks between Monday approx. 10am till Tuesday approx. 10am.

If incremental on Monday deleted, this mean we can't restore to Tuesday version?

Correct.

Best,
Fabian