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There appears to be issue with my virtual machines. If I allocated a virtual machine 10GB RAM and it uses on average only 1GB but for a short peak time it reaches 10GB the total RAM usage always remains at 10GB (on the node RAM usage not the virtual machines RAM usage graph). Ballooning is...

systemctl restart ksm service is not found

I accidentally configured KSM wrong nano /etc/ksmtuned.conf KSM_THRES_COEF=30 Thinking this would activate KSM when <30% RAM was remaining rather than what it's doing now (activating at 30% RAM usage). How can I safely restart KSM and clear the current RAM being used by KSM? I am also using...

When I attempt to migrate a virtual machine that is powered off it does not let me choose the target storage like I would with a live migration. How can I migrate from a node using local storage to a remote node using ZFS storage in offline migration.

For a short time while the live migration begins I am seeing large CPU/IO/Load (zvol) root@hostname:~# zpool list NAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT zfs 6.97T 462G 6.52T - - 0% 6% 1.00x ONLINE - root@hostname:~#...

When I want to edit a file inside a virtual machine image normally I would do export EDITOR=nano virt-edit -a /var/lib/vz/images/104/vm-104-disk-0.raw /etc/cloud/cloud.cfg What is the equivalent of doing this on a ZFS pool? I am unable to located the ZFS files zfs list NAME...

Thanks for the info. What about caching should it be something specific for Windows/Linux?

I recently set up ZFS RAID-10 and I have some questions. Generally speaking I presume this is a good setting for a mixture of Linux/Windows not particually running any processes to optimize (like SQL DB) Also I have added the following /etc/modprobe.d/zfs.conf #Max Ram Used by ZFS - 64GB...

Both have the same RAM 6GB / 64GB (Node)

"CPU limit" in this screenshot can be changed without a reboot

I am trying to understand the performance differences between creating a VM with 8 cores vs 4 cores/2 sockets. From any tests I manage to do the sysbench results seem to be very similar in fact usually the 4core/2sockets generally does better. While I overload the server (by running both tests...

I am seeking out a monitoring script that would limit VMs that are using too much CPU usage over a long period of time. Example VM1 (4vCPU 2 core/2thread) uses 80%+ CPU (of total cores allocated) for 24 hours, gets 50% reduction down from 4 vCPU to 2 via CPU Limit After 6 hours of the CPU no...

How/Where do you set these IPSet? The only thing I have found is which is not in the GUI anywhere? # /etc/pve/firewall/cluster.fw [IPSET blacklist] 77.240.159.182 213.87.123.0/24 Is there a easy way to do a cluster wide port block rather than IP ranges. I have only found security groups but...

Can anyone explain the difference was looking into this myself today and found this old thread. Looks like it didn't get a response other than suggesting not to use the firewall.

Never mind after playing around with it I think I got it figured out I presume I don't have to do anything under VM > Firewall > IPSet

Thank you for the reply. What should the firewall config look like for the VM if I only want to enable this ipfilter? I want all ports open, the firewall purpose would only be to prevent spoofing. Also is there a way to apply rules to all VMs easily? maybe at the node level as the datacenter...

I am seeking advise on how I can first identify which virtual machine is causing this and second how can I prevent this from happening again. I presume it is IP spoofing iftop: https://i.gyazo.com/a748cf88760eac99f61378d1830d83b9.png The IPs on the left 118.107.171.x are not owned by me and...

Anyone find the issue/fix? Have the same issue. /etc/NetworkManager/conf.d/99-cloud-init.conf contains: # Created by cloud-init on instance boot automatically, do not edit. # [main] dns = none Grep search only returns thre resolv.conf file [root@ip156 etc]# grep -i "192.168.122.1" /etc/* -R...

Not an option as they might need the extra RAM at peak times. Problem I see is the RAM buff/cache doesn't seem to ever clear. They don't have swap I will see how that helps.

Hello, To optimize in getting more out of the limited RAM my server has I plan on doing the following to clear cache build up: Linux hourly cronjob to run root sync; echo 3 > /proc/sys/vm/drop_caches Windows hourly schedule to run EmptyStandbyList.exe...