[pve-devel] [RFC docs 13/13] vzdump: add section about backup fleecing

Dietmar Maurer dietmar at proxmox.com
Thu Jan 25 19:18:23 CET 2024

> >>Stupid question: Wouldn't It be much easier to add a simple IO-buffer
> >>with limited capacity, implemented inside the RUST backup code?
> At work, we are running a backup cluster on remote location with hdd , 
> and a production cluster with super fast nvme,
> and sometimes I have really big write spikes (in GB/s), so it's
> impossible for the backup storage or network to handle it without
> increase latency or saturate link.
> So with limited capacity (how much ? in memory ?), I don't think it
> solve the problem. If the buffer is full, the vm write will hang.

Ok, I can see the problem...

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