Hi guys
In V13 Reverse incremental will be deprecated but there are a lot of people who use Reverse Incermental. I'm one of them, so i need to know and understand how to shift to increment mechanism.
I understand that veeeam need to simplify its dev and want to shift to forever incremental/incremental because of immutability on object storage.
But everyone is not using S3 and immutability and the traditional way to obtain an offline copy by using tapes is used by many peoples in the world, not few.
I'll do a fast comparison between the two method:
-In order to obtain this tape externalization, we need to put full backup on as few tapes as possible.
To achieve this you just have to put the last vbk on tape with a file to tape job. No need to use backup to tape job. (available in standard version license)
-If you use incremental backup you need to consolidate the last full backup and every increment on the tape using backup to tape job and virtual full backup. (need additional license probably)
This is achieve by using a tape job which build a complete synthetic full backup form the last good full backup and all it's increments, very time consuming and less robust regarding block corruption i guess.
This is only working in V12 if your backup jobs to disks don't use synthetic full backup or active full backup.
In this case it's seems that backup to disk have only one first vbk and many increments. And the vbk is injecting the oldest increment, keeping increments according to the retention policy.
So it's difficult to build a complete strategy, how to have incremental backup on disks during weekdays for example and periodically rebuild of full backups on disk on week ends and a tape job with full backup using as few tape as possible ?
Someone suggest in different post to use GFS Media pool, but it's need entreprise licence too.
My opinion about GFS media pool
-it's very difficult to know which tape is use and when, so difficult to export all tapes from the library to have a complete externalize full backup with all tapes in safe place.
-license needed
-probably need a robotic library to manage multiple media (daily, weekly, monthly, ...)
So i did'nt find a way to shift to incremental backup in this case.
Any help or constructive answer is welcome.
Thanks
In V13 Reverse incremental will be deprecated but there are a lot of people who use Reverse Incermental. I'm one of them, so i need to know and understand how to shift to increment mechanism.
I understand that veeeam need to simplify its dev and want to shift to forever incremental/incremental because of immutability on object storage.
But everyone is not using S3 and immutability and the traditional way to obtain an offline copy by using tapes is used by many peoples in the world, not few.
I'll do a fast comparison between the two method:
-In order to obtain this tape externalization, we need to put full backup on as few tapes as possible.
To achieve this you just have to put the last vbk on tape with a file to tape job. No need to use backup to tape job. (available in standard version license)
-If you use incremental backup you need to consolidate the last full backup and every increment on the tape using backup to tape job and virtual full backup. (need additional license probably)
This is achieve by using a tape job which build a complete synthetic full backup form the last good full backup and all it's increments, very time consuming and less robust regarding block corruption i guess.
This is only working in V12 if your backup jobs to disks don't use synthetic full backup or active full backup.
In this case it's seems that backup to disk have only one first vbk and many increments. And the vbk is injecting the oldest increment, keeping increments according to the retention policy.
So it's difficult to build a complete strategy, how to have incremental backup on disks during weekdays for example and periodically rebuild of full backups on disk on week ends and a tape job with full backup using as few tape as possible ?
Someone suggest in different post to use GFS Media pool, but it's need entreprise licence too.
My opinion about GFS media pool
-it's very difficult to know which tape is use and when, so difficult to export all tapes from the library to have a complete externalize full backup with all tapes in safe place.
-license needed
-probably need a robotic library to manage multiple media (daily, weekly, monthly, ...)
So i did'nt find a way to shift to incremental backup in this case.
Any help or constructive answer is welcome.
Thanks
Statistics: Posted by roland — Feb 11, 2025 9:34 am
