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Capacity Consumption for OnePass Backup

  • April 30, 2025
  • 3 replies
  • 44 views

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Hi team, how much backup storage capacity will be consumed when using OnePass backup of VMware VM?

Assuming we have one VMware VM (100 GB used inclusive 30 GB MS SQL DB). When we do a VM backup with DB agent, do we backup 100 GB (onepass) only? or we backup 100 GB (VM level) + 30 GB (DB agent)? It means backup storage will consume 100 GB + extra capacity from DB backup. Which one is correct?

Thank you.

 

Best answer by Jon Vengust

Hi Aris,

Thanks for confirming.

 

The application-aware backup includes the VSA backup in addition to the database backup. With this in mind, it should be 100GB + 30GB of front-end data of which will most likely be deduplicated (back-end)

3 replies

Jon Vengust
Vaulter
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  • Vaulter
  • May 5, 2025

Hi Aris,

OnePass is designed for file systems and archiving and doesn't apply to VMware-based backups.

 

Are you referring to AppAware backups of a VM instead?

 

 


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  • Author
  • Vaulter
  • May 5, 2025

Hi Jon,

 

Thank you for your reply. It refers to the application aware backup.

https://documentation.commvault.com/2024e/essential/application_aware_backups.html

Regards,

Aris


Jon Vengust
Vaulter
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  • Vaulter
  • Answer
  • May 5, 2025

Hi Aris,

Thanks for confirming.

 

The application-aware backup includes the VSA backup in addition to the database backup. With this in mind, it should be 100GB + 30GB of front-end data of which will most likely be deduplicated (back-end)