How to calculate data recovery time?

I am using a colo for our internal infrastructure and I need to figure out the approximate time it will take for recovery should the local backups fail. I am using S3 as the cloud back up repository. I am using Veeam as the backup software, the files are compressed, I would be restoring at the file level and the amount of data to be restored would be right around 1TB. Any suggestions to finding the approximate restore time?
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Mark BullockQA EngineerCommented:
I don't know how to calculate the time, but I recommend actually testing the data recovery.
You will get the time and you will verify that your process is correct.

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>>   I would be restoring at the file level   <<   then it will depend largely on the size and number of the files
small files take more time per GB than big files
Stuart ScottAWS Content Lead at Cloud AcademyCommented:

Also bear in mind your network throughput transfer rate on your local infrastructure and of course your link to the internet for the download and restore of the files.  Both of these will have an impact on restore time.  

As Mark pointed out, it would be a good idea to perform a DR recovery to not only ensure your backup works as expected but also to give your a good estimation of time on how long it would take to fully resume your services.


JharrisonsnbsAuthor Commented:
Thanks for the tip Mark. Most of the comments that have been made suggested testing before making any assumptions as there are to many variables. Thanks again.
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