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Regkey of the month: Full Proxy control with EnableSameHostHotaddMode

  • February 1, 2026
  • 6 comments
  • 43 views

kristofpoppe
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Hi everyone,

I’ve just published the February edition in the “Regkey of the Month series” 

This month’s focus is on the EnableSameHostHotaddMode registry setting in Veeam Backup & Replication.

What it does ?
Forces Veeam to preferentially use a proxy on the same ESXi host as the VM being backed up — helping to localize backup traffic and reduce performance issues like VM stun and cross-host data transfer.

Why this can be interesting for you ?
This can be especially useful in complex infrastructures (e.g., HCI or NFS-based storage) where network and snapshot performance matter.

If you’re curious how this setting works and when to implement it, check out the full post here:
👉 https://integriservices.blogspot.com/2026/02/regkey-of-month-february.html

I would love to hear your thoughts or real-world use cases!

6 comments

Chris.Childerhose
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This sounds like an interesting key to try.  Will have to give it a shot.


Tommy O'Shea
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  • Veeam Legend
  • February 1, 2026

This key seems like a great idea! Though one thing makes me hesitate in using option 1. “If the local proxy is busy, Veeam waits for availability.”.

I would much rather that it prefer to use local when it’s selecting which to use, but not to delay in using a remote proxy if the local one is busy. Otherwise, some long running backup job might lock the proxy, causing other jobs to miss their RPO completely.


Andanet
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  • Veeam Legend
  • February 2, 2026

Wow! Very interesting for me. Working with clients with big infrastructure this key can help a lot. Thanks ​@kristofpoppe 


Chris.Childerhose
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  • Veeam Legend, Veeam Vanguard
  • February 2, 2026

So do you have the details for using this with VSA or is this just a Windows key?

 
 
 

kristofpoppe
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  • Author
  • Veeam Vanguard
  • February 2, 2026

So do you have the details for using this with VSA or is this just a Windows key?

 
 
 

In a previous blogpost, I wrote how to implement regkeys in a VSA. These keys are now located in the config files. More infor can be found at: https://integriservices.blogspot.com/2025/09/regkey-of-month-october.html


Chris.Childerhose
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  • Veeam Legend, Veeam Vanguard
  • February 2, 2026

So do you have the details for using this with VSA or is this just a Windows key?

 
 
 

In a previous blogpost, I wrote how to implement regkeys in a VSA. These keys are now located in the config files. More infor can be found at: https://integriservices.blogspot.com/2025/09/regkey-of-month-october.html

Perfect thanks.  I had forgot you did this previously for VSA.  Thanks for the link.