VM migration time
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Hi. I created a Linux VM for testing. It has a 10 GB disk. The MTU of the communication network between the hosts in the pool and the Dell storage is 9000.
When I try to migrate this VM between storage volumes, using XO, the time is more than 6 minutes. Is this time normal for the size of the VM?
Could I check some settings to try to improve this time?
I saw the links below, but I still have questions:
https://xcp-ng.org/forum/topic/6639/mtu-change
https://xcp-ng.org/forum/topic/9193/help-with-iscsi-in-xcp-ng?_=1734355541195 -
Hi,
Giving the speed will be more helpful
What's the average speed you are seeing in the host view/stat tab and network graph? -
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Is the VM on shared storage?
Storage migration is quite slow, but if the VM is on shared storage the migration is usually pretty quick, we've seen about 7Gbit/s on a 10G network with MTU 9000. -
@nikade Yes, the VM is using shared storage. My storage network is 10G with the MTU of 9000. I don't use multipathing for interfaces. I'm thinking there's something wrong with the settings.
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The network throughput is really weird. What NIC are you using? Also, double check you have MTU 9000 everywhere, this is usually a can of worm when not correctly configured.
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@olivierlambert See the settings:
- Network for pool:
- Network for host 1 of Pool:
- Network for host 2 of Pool:
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Switch Dell: MTU 9216
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MTU on all Storage SCSI interfaces:
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I will try to list more information.
