From forever incremental to forever forward incremental

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From forever incremental to forever forward incremental

Veeam Logoby marius roma » Wed Jun 08, 2016 8:32 am

I want co convert some existing "forever incremental" backup jobs to "forever forward incremental".
As I see from the manual it looks that I must simply remove the "Create active full backup periodically" check, is it correct?
What is supposed to happen if I apply the change?
Can I safely apply the change to existing jobs without losing existing recovery points?
Regards
marius
marius roma
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Re: From forever incremental to forever forward incremental

Veeam Logoby Shestakov » Wed Jun 08, 2016 9:42 am 1 person likes this post

Hello Marius,
marius roma wrote:As I see from the manual it looks that I must simply remove the "Create active full backup periodically" check, is it correct?

Correct.
marius roma wrote:What is supposed to happen if I apply the change?
Can I safely apply the change to existing jobs without losing existing recovery points?

The chain will act as forever incremental.
Yes. Older backups will be deleted according to their retention policy.
Thanks!
Shestakov
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Re: From forever incremental to forever forward incremental

Veeam Logoby marius roma » Thu Jun 09, 2016 1:19 pm

I made some tests and it looks to work as expected.
Let me ask an additional question: based on my lab tests the behavior of forever forward incremental does not look so different from reverse incremental.
I read that the use of reverse incremental is discouraged on deduplicating repositories: is it the same for forever forward incremental or can I use it on deduplicating repositories?
Regards
Marius
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Re: From forever incremental to forever forward incremental

Veeam Logoby Shestakov » Thu Jun 09, 2016 1:58 pm 1 person likes this post

Yes, you are going to have performance degradation during synthetic activity (think random I/O) on any deduplicating storage.
However despite both reverse and forever forward modes us 3 IOPS per byte Forward Incremental-Forever mode is more preferable.
Thanks
Shestakov
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