Duplicating a full backup (not a backup copy)

Hi Simon -

Yes, you can kinda do what you want and perform what is called Replica Seeding using Veeam Replication. See the User Guide here to learn more about it. What I would do is place a copy of your backup in a 2nd Repo if you can (not same one), then create a DR side VBR server and create/run a Replication job of your “file server” using this “seeded” backup copy. The only data that’ll traverse your WAN are change data. Another option is to make a copy of the VM and place it on your DR side and do a Replica Mapping job. This does the same thing as seeding, but instead of using a copy of a backup in a Repo, the job uses the copied VM you placed on the DR side and again will only replicate VM changes.

There are a couple caveats to be aware of → if you change the disk size of your source VM, the replication job will perform essentially a full replication. In other words, CBT (changes only) will not be performed. And, as Replication uses what is essentially VMware snapshot technology, you can only have 28 restore points for your replica VM.

Also, a few benefits of using Veeam Replication I didn’t mention...only mentioned caveats is: you have a DR strategy for this important VM. You can recover by failing over to it in a matter of literally minutes and have minimal downtime. You have the option of doing regular recoveries from it (i.e. file-level restores) if needed. You can do testing operations (updates?) and when done discard changes. Basically, there are a lot of upside to having a Veeam Replication strategy.

Yes, you can as @coolsport00 mentioned 

What Shane mentioned will work for a Replication strategy but if I read your post correctly you want to do backups of the same VM on the second site using the current repository as a seed.  If you are only able to use Reverse Incremental backups which are much slower and not recommended at the DR site and if the source repository uses Incremental style backups, I do not believe you can copy over the backup files to start a second copy of the VM on the DR site.  The backup chains are constructed much differently for each type of backup job.

You could look in to a backup strategy using WAN Accelerators to send the backup to both sites as another possible solution, but they need to be implemented at each site to choose a source and target accelerator.  WAN Accelerators - User Guide for VMware vSphere (veeam.com)

Also depending on the infrastructure on both sides that might play a role if you are using different hypervisors, etc.  Something to take in to consideration when planning things.

Good point Chris about the backup structure of each side. 👍🏻🙂

And, though it hasn’t been shared as to a ‘when’ exactly, the Reverse Incremental mode will be deprecated in the future. So that’s something to keep in mind in moving forward. 

I didn’t even bring up possibility of traversing the WAN for any kind of backup strategy because even with using WAN Accelerators, I think it would take quite a long time to get the initial seed of 40TB to the DR side. Best bet I believe is to place a copy the source data over there, then do some kind of strategy from that side - either a DR side backup, or Veeam Replication.

Thanks.  Yeah, 40TB would be much to move across the WAN but it was an option I wanted to throw out there, if not useful then what works best can be used.  😁

It needed to be shared 😊

It’s probably too late for this. but since you had to re-import the same VM and Veeam is seeing it as a different VM, there is a way (unsupported) to remap the MoRef ID of the reimported “new” VM to the old backup in the database so you’re not starting with a new backup.  Since you just happen to be using v11, you can still use this utility to remap the backup.

https://www.veeam.com/kb2136

If you were able to map to the existing backup, then you also wouldn’t need to copy a new chain for the copy job as it would reattach to the existing copy data.

Assuming that my previous reply about mapping the MoRef ID is not a valid solution at this point….

Here’s what I’ve done for this, and this is assuming that you want to just keep the data on the NAS and no import into a server at the recovery site.  Setup your repository to the NAS using a DNS name.  Have the NAS on-site at the primary location and setup your backup copy job.  Once the backup copy to the NAS has completed, disable the copy job, shutdown and move the NAS to the recovery site.  Bring the NAS online with it’s assumingly new IP address at that site (unless you are stretching your LAN in which case this is even easier).  Update DNS to point to the new IP address of the NAS.  Once it’s online and accessible via the DNS name, refresh your repository to verify that the NAS/repo is visible to Veeam.  You may want/need to update the proxy servers that have access to the NAS.  Resume your copy job and validate that copies are continuing to the NAS as expected.  If you’re using a stretched LAN between the two sites (guessing not since you’re using a VPN to connect the two), then you may only need to update the proxy used to access the repo and wouldn’t need to do any of the IP/DNS changes.

If you’re copying the data into a different server, you’d probably want to point your copy job to the NAS on-site or clone the job to copy on-site, and then you could likely copy the data from the NAS into the server’s repository at the recovery site, rescan the repo, and then map your backup copy job to that data in the repo.  I haven’t tried this, but I think would be fine in theory, but there’s a lot of details in the setup that you’d have to make sure match up.

Sounds like a good plan.  Best of luck with everything and if you have any other questions we are always here to help. 😁

Sorry our suggestions couldn’t resolve what you’re needing, but glad we could provide some good info.

All the best!

Solid plan I think.  Best of luck with your endeavor.

The #1 thing you do not want to do is manually copy files, I think it was @JBuff → likes to say, “A backup of a backup is not a backup.”