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bmwisme
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Estimating replication metrics

Post by bmwisme » Mar 20, 2013 6:02 pm

I don't have my second ESXi host to test replication bandwidth consumption and duration. Would creating a new incremental backup job to a remote target scheduled for say every 30 minutes properly simulate replication? Would this temporary job interfere with my other backup jobs as far as CBT?

Thanks

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Re: Estimating replication metrics

Post by foggy » Mar 20, 2013 8:31 pm

bmwisme wrote:I don't have my second ESXi host to test replication bandwidth consumption and duration. Would creating a new incremental backup job to a remote target scheduled for say every 30 minutes properly simulate replication?
If this would be an agent-enabled backup target (i.e. Windows or Linux-type) and you set the repository to decompress data before storing (as replica restore points are stored as snapshots in native VMware format), then this could be considered as replica simulation in terms of bandwidth consumption and (to a lesser degree) time required. However, data population on target datastore during replication can be optimized with the help of virtual target proxy server having direct access to the target datastore for hotadd.
bmwisme wrote:Would this temporary job interfere with my other backup jobs as far as CBT?
No.

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Re: Estimating replication metrics

Post by bmwisme » Mar 23, 2013 2:39 pm

Thanks foggy for your input.

A full remote backup over our slow WAN link (bonded T1 - 3MPs) would take 11 hours, is there a way to "seed" a backup - baseline for incrementals?

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Re: Estimating replication metrics

Post by dellock6 » Mar 23, 2013 5:25 pm

Sure you can. If it's a replication job, you can first dump a copy of the VM, bring it to the DR site, upload it to the target datastore, and while you are configuring the replication job, simply choose to map the replica to an existing VM.

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bmwisme
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Re: Estimating replication metrics

Post by bmwisme » Mar 23, 2013 5:43 pm

Doesn't a replication job need an ESXi host as the target? I am testing incremental backups for this slow WAN link to estimate for host to host replication when I get my second host.

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Re: Estimating replication metrics

Post by foggy » Mar 23, 2013 10:37 pm

Yes, replication occurs between two ESXi hosts. In case you seed replication job using VM backup, Veeam B&R will basically restore the VM from it, regisiter it on the target host, and perform incremental run.

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Re: Estimating replication metrics

Post by bmwisme » Mar 24, 2013 12:48 am

foggy wrote:Yes, replication occurs between two ESXi hosts. In case you seed replication job using VM backup, Veeam B&R will basically restore the VM from it, regisiter it on the target host, and perform incremental run.
Sorry, I don't think understand. I have one ESXi host but I want to do a backup to a remote location. I would like to start with a full backup so I only get incremental backups over this slow WAN link. I understand I can "seed" a replication job but I won't be doing replication for now.

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Re: Estimating replication metrics

Post by Gostev » Mar 24, 2013 8:54 am

You can seed backup as well, see "map backup" functionality in the backup job wizard.

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Re: Estimating replication metrics

Post by bmwisme » Mar 24, 2013 1:01 pm

Thanks Gostev, I can understand that.

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