NBD connection during backup
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Are you sure XO is using that network?
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@olivierlambert Pretty sure. I forced it to use that. In the pool Advanced tab (actually this is the only one I can choose from, the VM network is not shown):
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@manilx P.S: I have only 2 networks. Management and VM and both had NBD on.
XO VM is using VM network. Should I put it on the management one?
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@manilx Tested putting XO on the Management network. Same result, backups do not use NBD...
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Remove the "backup network" entry to leave it as default, check that XO is connected in Settings/server to that mgmt IP of the host and try again.
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that looks similar my problem https://xcp-ng.org/forum/topic/8336/nbd-setup-no-such-item
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@olivierlambert Did that. No change.
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Maybe @florent will know
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@olivierlambert Here are the respective screenshots:
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@manilx Found it.
The backup I had was "backup" not "delta".
Choosing delta and Advanced settings I can turn on NBD:
Turned on and all is well. Sorry for the confusion. My bad.
Backup speed doubled.
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Ahhh !! Great news
I missed it myself, so no worries. So you went from which speed to which? -
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@olivierlambert 50-80MB/s to up to 160/180
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Nice speed increase! Probably also with less CPU load on the Dom0 at the same time
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@olivierlambert Haven't checked the CPU as CPU is never a problem on my load
But yes this speed is a lot better so I can backup more frequently (every 2hrs for the important VM's)Actually the speed on my homelab is faster than the ones we get at the enterprise with "real" hardware.
