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Feedback needed to evolve our backup repository

  • July 29, 2026
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Hello everyone,

I'm reaching out today because we're experiencing performance issues with our Veeam backups. More specifically, I find that both the incremental backup duration and the Synthetic Full backup duration are extremely long.

Here's a quick overview of our current physical infrastructure:

  • Veeam Backup Server running as a virtual machine (connected at 10 Gbps) - 13.0.2.29
  • Backup Repository: Synology RS2418+ (Intel Atom C3538, 4 GB RAM, no SSD cache, connected at 10 Gbps)
  • Disks:
    • Disk 1: WDC WD80EFAX-68KNBN0
    • Disk 2: WDC WD80EFAX-68KNBN0
    • Disk 3: WDC WD80EFAX-68KNBN0
    • Disk 4: WDC WD80EFAX-68KNBN0
    • Disk 5: WDC WD80EFPX-68C4ZN0 (recently added, hence the different model)

For every backup job, the bottleneck consistently shows "Target".

Backup configuration

We currently have two backup jobs:

Job 1

  • Selected production servers
  • Incremental backups: Monday to Friday, starting at 7:00 PM
  • Synthetic Full: Saturday (same start time, as it's not possible to schedule a Synthetic Full earlier than the job schedule)

Job 2

  • Remaining production servers
  • Incremental backups: Monday to Friday, starting at 10:00 PM
  • Synthetic Full: Saturday (same start time for the same reason)

Normal incremental backup reports

Job 1:

Job 2:

 

Normal Synthetic Full reports

Job 1:

 

Job 2:

Synthetic Full report from this weekend

This week's Synthetic Full took even longer because the previous weekend's Synthetic Full could not complete. Even taking that into account, I still find the execution time excessive.

Job 1:

Job 2:

My questions

  1. Until we replace our hardware (planned in approximately six months), what can we do to improve backup performance?

Our production environment is business-critical, so the Synthetic Full must not extend into Monday. When it does, our production systems experience noticeable slowdowns.

  1. When we replace the infrastructure, what type of backup repository would you recommend?

Would it be better to use:

  • a physical Veeam Backup Server with directly attached storage,
  • a DAS (Direct Attached Storage),
  • or another architecture?

What are the current best practices for a Veeam backup repository?

Thank you very much for your feedback and recommendations. I appreciate any advice you can provide and will take all suggestions into consideration.

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