@Forza Actually I have the same "issue", so +1 here.
manilx
@manilx
HomeLab: 1 pool with 2 hosts, Protectli VP6670 (10G connection) and Minisforum NPB7 (2,5G connection). Storage QNAP TBS-h574TX (10G connection) and QNAP TVS-h1288X for backups (10G connection).
Both fully loaded with 64GB RAM. Internal disks 1TB nvme.
Business setup: https://xcp-ng.org/blog/2023/05/15/leading-the-pack-mani-industrias-plasticas-sa-journey-with-vates/
Best posts made by manilx
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RE: 2 hosts in a pool, how to force VM to boot on a specific host. (GPUs involved)
@ptunstall In the Advanced settings of the VM, select the host:
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RE: Hosts log error in Xen Orchestra
@Danp Can confirm, I also get an "internal error" when trying to download logs.
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RE: Bringing modern virtualization in the Arm-powered Datacenter
@gskger XCP-NG on ARM/Ampere will be huge!!!!
The running cost of those machines is a big win over x86. Power is expensive in Europe. Hetzner is in full swing on that front.
And not everything runs in Windows I guess it's only the smaller fraction of all the VM's in the world. -
RE: Epyc VM to VM networking slow
@gskger Returning to this:
Our backups on our business deployment, 2 HPE, (,ProLiant DL325 Gen10 Plus v2,) with AMD EPYC 7543P 32-Core Processor connected via redundant 10G nic's and switched to 10G NAS (QNAP, Synology) for storage and backups we get backup speeds of 80-90MiB/s tops with NBP.
On my Homelab with Protectli Mini PC connected via 10G also to 10G QNAP I get 250-300 MiB/s !!!!!!
This really is a problem for us now since we started with XCPNG 1 yr ago. Slow backup/restore speeds are a hindrance in our backup strategy.
Now that I switched my Homelab from Proxmox (using it for 3yrs) to XCPNG I stumbled upn this speed difference and it is incredible.
I wonder if it is not also related to this issue with EPYC networking.
P.S: I have opened a ticket BUT I wanted ti share this here also.
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RE: Epyc VM to VM networking slow
@bleader I stumpled upon this thread and this issue kept me wondering so I did a quick test on our systems:
Running iperf3 on ou HP's with AMD EPYC 7543P cpu's, debian12 to debian12 vm I get
iperf3 -c 192.168.1.19 -P 10
iperf3 -c 192.168.1.19
Same on a HP with Intel Xeon E5-2667
iperf3 -c 192.168.1.113 -P 10
iperf3 -c 192.168.1.113
FREAKY!
Doesn't affect us because we don't have inter-VM traffic to speak off.
Latest posts made by manilx
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RE: 2 hosts in a pool, how to force VM to boot on a specific host. (GPUs involved)
@ptunstall In the Advanced settings of the VM, select the host:
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RE: 8.3 beta, crashed Windows11 VM when trying to snapshot with memory
@stormi "You cannot snapshot or checkpoint a suspended VM with a vTPM attached."
The VM was running.... And we need snapshots for delta backups.So let me know what you find.
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RE: 8.3 beta, crashed Windows11 VM when trying to snapshot with memory
@stormi Worked with sftp. (On macos).
I'll submit link via PM
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RE: 8.3 beta, crashed Windows11 VM when trying to snapshot with memory
@stormi said in 8.3 beta, crashed Windows11 VM when trying to snapshot with memory:
xen-bugtool -y
I did run the command on the host it occurred. How do I get the file out? -
RE: 8.3 beta, crashed Windows11 VM when trying to snapshot with memory
@stormi I don't do this frequently or regularly. Since I reported it crashed 1 out of 4 (tests).
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RE: Epyc VM to VM networking slow
@manilx Running a test backup, one with NBD and then again without. Will report asap.
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RE: Epyc VM to VM networking slow
@florent Florent, yes I do use NBD for all backups. And checking the backup log of the completed jobs I see that NBD is being used.