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bpayne
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Planned failover for multiple VM's

Post by bpayne »

From my testing, I have tried performing a Planned Failover by selecting multiple VM's simultaneously and Veeam did not parallel process the failover. It only processed one VM at a time. Is this by design or did I not perform the procedure correctly?
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Re: Planned failover for multiple VM's

Post by Gostev »

Most likely, you don't have enough source or target proxy slots available to process more than one VM at a time. This is documented in the User Guide under Limitations for Planned Failover. Thanks!
bpayne
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Re: Planned failover for multiple VM's

Post by bpayne »

Thanks for your response, but its still not clear to me. You indicated that I may not have enough source or target proxy slots available, which indicates I can perform a planned failover for multiple VM's simultaneously, if I were to have more proxy resources.

In the link you shared (thank you), I did see this statement which indicates VM's will be processed one by one. (I am using one replication job)
"If you start planned failover for several VMs that are replicated with one replication job, these VMs will be processed one by one, not in parallel."

Which is true?

If one by one is true, that is a huge limitation, can anyone explain why it's designed that way? I have something like 600 Tier 1 VM's that I want to replicated, but there would be no way for me to efficiently perform a planned failover one by one in a timely fashion. Again if one by one is NOT true, disregard my statement!

Thanks!
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Re: Planned failover for multiple VM's

Post by foggy »

Hi Brandon, VMs from a single job are processed sequentially during planned failover, this limitation indeed exists.
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Re: Planned failover for multiple VM's

Post by frankive »

a showstopper for me with 60 vms we want to replicate during maintence. will be a few hours downtime for the customer during the replication..
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Re: Planned failover for multiple VM's

Post by dali@iae.nl »

OK, we are now 7 years later and the manual still says "Planned failover has the following limitations: If you start planned failover for several VMs that are replicated with one replication job, these VMs will be processed one by one, not in parallel."
And we do have sets of VM's in 1 Replica Job.

My thoughts for a Failover without data loss:
1. Since a Planned Failover also has some downtime and if you may already shut down the original VM's, just shut them al down.
2. Run the Replication Job (that's parallel processing and you know from former runs the time it takes).
3. Now original and replicated VM are exactly in sync.
4. From the Veeam GUI do a Failover now .. which will start the Replica's immediately.

Good idea? Any other thoughts?
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