MABS Requirement for Huge Data

Question

I want to know about 50 TB data backup and recovery processes on-prem and Cloud system configuration.

https://learn.microsoft.com/en-us/azure/backup/backup-azure-microsoft-azure-backup

From the above document, I only found the minimum requirements( 4 Core and 8 GB RAM)

1. Does ( 4 Core and 8 GB RAM) enough to backup and restore 50 TB data?
2. What is the minimum recovery data supported with minimum configuration ( 4 Core and 8 GB RAM)?
3. How much ReFS disk space is needed for (50 TB) daily default backup policy?

My concern here is with minimum configuration can we achieve the recovery without extended downtime?

Answer 1

Hi @Anirban Sen Thank you for reaching out to us on Microsoft Q&A platform. Happy to assist!

I understand your requirement to backup 50TB data from on premise to Azure. When you are planning to backup data to Azure, it does not mean you are actually creating VMs in Azure. When you upload data from on-premises to Azure using Microsoft Azure Backup Server (MABS), the data is first backed up to your local storage (On-premises) and then the data gets uploaded to Azure from local storage. The architecture is described here - https://learn.microsoft.com/en-us/azure/backup/backup-architecture#architecture-back-up-to-dpmmabs

Let me try to answer your actual questions.

1. Backing up 50TB of data directly to Azure might take a lot of time, depending on various factors such as, download and upload speed (Internet - on-premises), how many files and folders this volume has etc.
2. For backing up 50TB of data you at least need 100TB of backup repository (Local Storage Space)
3. We don't have a way to know what the churn is, it depends on your environment, so how much changes are done every day it's something you need to find out.

Recommendations:
Suggest you to re-partition your disks to avoid slowness of backup data. Because 50TB is a huge data and cannot be uploaded to Azure in a single chunk.
As an alternative, you can also consider using Azure File Share. And then leverage backup on portal to create snapshot backup which will be faster.
As a best practice, for your scenario it is recommended to use capacity planner - https://www.microsoft.com/en-us/download/confirmation.aspx?id=54301 that can help you assess your environment and provide appropriate guidance to accomplish your requirements.

Hope this helps! Please tag me in your reply if you need further assistance in this matter.

----------------------------------------------------------------------------------------------------------------------

If the response helped, do "Accept Answer" and up-vote it