V11: NEW GFS retention is here now!

Among the first features put into Veeam Back-up & Replication was back-up copy jobs, sufficient reason for backup copy tasks, we additional GFS. GFS means Grandfather, Farther, Son. It’s the term useful for archival retention points in only backup copy jobs initially, but now it’s obtainable in traditional backup work in newer versions. These archival factors allow clients to save lots of a point-in-time complete copies of their information in intervals of days, months, years and quarters. There are many known reasons for these archival points, like monitoring configuration data and changes retention compliance. Starting in Veeam Back-up & Replication v11, you will have some modifications to how GFS will be handled in back-up copy jobs plus some new best exercise configurations.

How backup duplicate GFS retention proved helpful before V11


Very first, let’s look at how GFS within backup copy jobs function in versions just before V11. Focusing on how GFS functions in earlier versions of Veeam Back-up & Replication shall assist clarify how to plan the update. When making a backup copy work, there will be a forward incremental chain in line with the configured retention policy permanently. This chain would contain one full backup stage with some incrementals before it. This chain appears much like Ms. Pac-Man eating the never-closing chain of incrementals or dots. Every time the chain forwards moved, the oldest incremental had been merged in to the full backup stage. When GFS was allowed, day through the job run, which was said to be a GFS point, the backup file will be marked to save lots of that true time. The backup stage in this scenario will be an incremental, however when the full backup stage within the permanently incremental chain attained this marked point forward, it could leave behind a complete backup copy stage. The downfalls to the method are usually that the retention plan will be applied in line with the amount of backup factors in the chain, not really age these true points. In addition, it could delay the opportunity to offload GFS factors tiered to cloud item storage. Finally, this necessary modifying the entire backup files set up after they have already been developed, which prevents making use of WORM (Write Once Study Many) backup storage space in principle.

What we transformed in V11 (and why)


As you know already, V11 includes a whole slew of game-changing new features. Nonetheless it was almost a tale to notice how the existing backup copy work restore-stage based retention and its own full backup merges aren’t compatible with some of them:

    • Immutable backups on Hardened Repository: not merely did these need time-dependent GFS retention to properly established the WORM unlock period, however they obviously cannot assistance backup document merges (because after the backup file is established, it really is immutable).


    • Immutable back-up on SOBR Archive Tier: these, again, need time-centered GFS retention to create WORM unlock time.


    • Background GFS retention: this as well requires time-dependent GFS retention to guarantee the retention can be prepared correctly and individually of backup or back-up copy job operates



The only real workable solution for all of us was to help make the backup copy GFS retention utilize the same approach because the primary backup job GFS retention, which furthermore meant some feature reduction like quarterly backups unfortunately, which were designed for primary job GFS to begin with never. And while that is arguably probably the most disruptive adjustments we actually did in the merchandise, you can probably observe how we were pressured to accomplish it “for the higher good” while also due to the fact some feature reduction can continually be addressed later predicated on your suggestions. Innovate and iterate! By the real way, even though you don’t value those new functions (or at least insufficient to include the cons of the change), remember, the brand new method does have several less obvious benefits as well:

    • It really is now not possible to fall short the retention policy because of accidently creating a supplementary GFS restore point, because each GFS restore stage is removed predicated on its age strictly.


improved dependability and performance without having in-place backup file adjustments

  • Dramatically.

less bug-prone logic in comparison to restore point count-centered retention

  • Much. We never saw part situations with nasty bugs cease coming after a long time with this particular feature even…

How backup duplicate retention functions in V11

At first, i want to just begin by saying that once you learn how primary backup work GFS retention functions in V10, you then already understand everything about how exactly backup copy work GFS functions in V11, and you also don’t require read further – if you don’t would like a recap really.

In V11, the forever forward chain of backup duplicate job is replaced by way of a normal forward incremental chain in line with the GFS configuration. The traditional forward incremental chain indicates a full point will undoubtedly be created exactly on the entire times scheduled for GFS, with incremental factors that proceed on the next days, with no everyday merges within the chain. For this good reason, it is strongly suggested to possess weekly GFS factors scheduled to avoid lengthy chains between synthetic complete points, because this might significantly increase disk room use by incremental restore factors due to how traditional incremental chains retention functions: we can not delete the complete chain until the final increment in chain continues to be under retention, since it is usable with all prior backups in its chain beginning with full backup.

Next, as noted over, due to re-using major backup job GFS logic, backup duplicate GFS schedules shall reduce the quarterly option for backup points, leaving weekly, yearly and monthly.


This change increase the amount of monthly full backup points continued the repository to simulate a quarterly backup cycle with monthly backups. Nevertheless, this space requirement could be alleviated by leveraging additional Veeam technology; such as quick cloning on ReFS and XFS-dependent repositories, deduplication storage space integrations, or even simply by offloading backups to item storage space – which we do within a forever-incremental manner furthermore.


V10 to V11 retention configurations checklist for existing clients

These noticeable changes will need immediate impact after upgrading to Veeam Backup & Replication v11, so it’s recommended to check out all of the configured backup duplicate careers before updating. If GFS is usually configured on the back-up copy job, be sure that weeklys are configured in order to avoid lengthy incremental backup chains among monthly fulls also. If you can find quarterly backups configured, the update will transform those to three month-to-month backups for every quarterly and include that to the prevailing total of month-to-month GFS points. For instance, if a work is configured with 1 yearly, 3 quarterly, 3 month-to-month and 4 weekly, the brand new GFS schedule will undoubtedly be 1 yearly, 9 month-to-month and 4 weekly following the upgrade. It is suggested to create these changes prior to the upgrade if achievable, but it shall not really prevent the upgrade from finishing. The update is total once, it’s recommended to return in to the backup copy work opportunities to ensure that the brand new GFS retention configurations are correct.


Bottom line

In Veeam Back-up & Replication v11, backup duplicate GFS retention was transformed to complement primary backup work GFS retention make it possible for support for most new V11 functions requiring time-structured GFS retention. Existing clients should appear at their back-up copy jobs ahead of upgrading to guarantee the retention changes won’t affect company retention plan or increase back-up repository consumption because of extra monthly complete backups transformed from quarterly. But you’re through this tough transition as soon as, it is possible to take pleasure from new Veeam Backup &amp fully; Replication v11 features, just like the fresh hardened Linux repository with immutability that assists protect your GFS restore factors while on-web site and pairs nicely having an all-brand-new archive to the cloud tier for a straightforward off-site GFS strong archive holds. Take a look by downloading the demo for Veeam Back-up & Replication v11 .

%d bloggers like this: