Greetings,
I have a question regarding a very specific situation
I have a DAG with two Exchange VMs, the active VM uses an old "in guest iSCSI" configuration, and thus can not be backuped with Veeam so for now I only backup the passive DAG Exchange VM, which is then copied offsite with a Backup Copy job that as been pre-seeded before (4 Tb database on a 100 Mbps connection would have taken days). We are not using WAN accelerator. For now all is good.
I plan in the next few days to migrate that "in guest iSCSI" Exchange DB to a regular VMDK on a proper iSCSI VMFS datastore so that it can be processed by Veeam. After this migration I will add the virtual machine to the Exchange Backup Job, and then do a full active backup; I expect to have a good deduplication result (~50%) on the total backup size due to the fact that the same database is backed up twice.
Now the question is the following : will the backup copy job take advantage of the deduplication from the backup job or will I have to deal with a huge transfer over the 100 mbps link ? (in the later case I will plan for a new seeding of the backup copy job).
Thank you in advance for your insight
Regards
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Re: Backup copy job dedup question
Hi Eric, no, backup copy job will copy all the blocks related to the second node to the new increment file, so you'd need to re-seed the job.
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Re: Backup copy job dedup question
this is what I feared, thank you for the confirmation I will plan things accordinglyfoggy wrote:Hi Eric, no, backup copy job will copy all the blocks related to the second node to the new increment file, so you'd need to re-seed the job.
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