Rate limit storage migration

[zBrain]

I'm wanting to move some VM HDDs between local and network storage but doing so causes the storage network to saturate and VMs to crash. Can I live migrate but limit it to say 50MB/s?

Does rate limiting the drive accomplish this?

 

[dietmar]

You can set the "migrate_speed" configuration (MB/s) to limit RAM transfer speed. But this does not affect storage copy speed.

 

[zBrain]

I take that to mean it's not possible. That's unfortunate, as every time I clone a larger template it knocks off some VMs. Same thing with moving virtua storage between network storages. Is there a way to do it via CLI? Obviously I could take it offline and use rsync with a rate limit but I'd prefer a method that didn't force me to put things offline.

 

[dietmar]

I can see the following solutions for your problem:

* use shared storage instead
* use a faster network (10GB)
* implement rate limit yourself and send patches
* report a bug at bugzilla.proxmox.com and hope someone else implements this