Re: [libvirt-users] Two Node Cluster

I have to say that I wouldn't do the networking that way - in fact, in the clusters I manage, we haven't done the networking that way :-). Rather than layer 3 routing between VMs, we've chosen to use layer 2 virtual switching (yes, using openvswitch). We have the luxury of multiple 10G NICs

Re: [libvirt-users] issue with openssh-server running in a libvirt based centos virtual machine

You say you can ping but not ssh. If you install tcpdump on the VM, can you see the ping packets arriving and leaving? If not, I suspect an address collision - especially if ping continues to work with the VM shut down. If you can't ping, check the other end of your bridge. I'm more familiar with

Re: [libvirt-users] How do i associate a VM to An IP

Not directly. Is this for security, or for administrative convenience? If convenience, the usual approach would be to add a DHCP reservation. If security, you'll also want some network infrastructure to expect a particular IP address on the virtual port. Without more information on your

Re: [libvirt-users] kvm/libvirt on CentOS7 w/Windows 10 Pro guest

Why do you reckon this is to do with your virtualisation system (presumably qemu/kvm, though you don't say) rather than Windows 10? Peter On 13 Feb 2018 7:06 p.m., "Benjammin2068" wrote: > > > Hey all, > > This horrid bug seems to be back after the system got all

Re: [libvirt-users] snapshots with virsh in a pacemaker cluster

Pacemaker always knows where its resources are running. Query it, stop the domain, then use the queried location as the host to which to issue the snapshot? Cheers, Peter On Mon, 15 Oct 2018, 20:36 Lentes, Bernd, < bernd.len...@helmholtz-muenchen.de> wrote: > Hi, > > i have a two node cluster

Re: [libvirt-users] avoiding PCI bus 8 / using PCI function / virt-install

On Wed, 26 Dec 2018 at 16:26, b f31415 wrote: > If not, is there a way with one of the virt command line tools to create > the XML (with the PCI addresses specified) so that I can process that XML > and re-write the PCI addressing values? Right now the only way I’ve been > able to get that

Re: [libvirt-users] How to assign IP via virt-install

You've not given libvirt anything to install; therefore, it has nothing it can tell about the IP address. Are you intending, for example, to add a mapping between MAC and IP address to a DHCP server for later use? - Peter On Mon, 17 Sep 2018 at 13:23, Devis Reagan Ponraj -ERS, HCL Tech <

Re: [libvirt-users] domain still running although snapshot-file is deleted !?!

The file may have been unlinked (name to inode mapping removed from the filesystem), but the inode and therefore the data will stay until no process references the inode. I *think* this may be what's happening in your case? Peter On Wed, 15 May 2019, 14:25 Lentes, Bernd, <

Re: [libvirt-users] libvirtd via unix socket using system uri

On Tue, 30 Apr 2019 at 16:43, Michal Privoznik wrote: > Long story short, why bother with /system if you can't use it and not > use /session instead? > > Because according to the FAQ, /session isn't suitable for my use: - You will definitely want to use qemu:///system if your VMs are acting

Re: [libvirt-users] libvirtd via unix socket using system uri

On Tue, 30 Apr 2019 at 10:40, Michal Privoznik wrote: > Is there any problem running libvirtd as root? > > Yes, in the regulated environment in which I work! I have to do far more thorough threat analysis than I would do if I knew which capabilities it had. So far, we've accepted the extra

Re: [libvirt-users] libvirtd via unix socket using system uri

On Tue, 30 Apr 2019 at 10:48, Daniel P. Berrangé wrote: > On Tue, Apr 30, 2019 at 10:45:03AM +0100, Peter Crowther wrote: > > On Tue, 30 Apr 2019 at 10:40, Michal Privoznik > wrote: > > > > > Is there any problem running libvirtd as root? > > > > > >

Re: [libvirt-users] CPU and Memory requirements for host OS ( CentOS 7.6) on Dell Poweredge R630 server

*may or may not be* enough - a huge amount depends on your workloads. As ever, watching the available memory and how much CPU is in use in "top" will give you a better idea of how your infrastructure is behaving, as will watching the server charts in virt-manager if it's available. For example,

Re: [libvirt-users] OVS / KVM / libvirt / MTU

On Thu, 8 Aug 2019 at 10:08, Sven Vogel wrote: > The question for me is why they use the smallest? > Because otherwise some frames won't get through because the interface can't receive them, and the job of network equipment is to enable and maintain communication :-). > > Cheers > > Sven > -

Re: virsh vol-download uses a lot of memory

Architecturally, separating the data and control channels feels like the right approach - whether nbd or something else. Would need signposting for those of us who routinely implement firewalling on hosts, but that's a detail. I presume there's no flow control on streams at the moment? Cheers,

Re: Not able to add pcie card to guest: Operation not permitted

On Fri, 24 Apr 2020 at 21:10, Mauricio Tavares wrote: > Let's say I have libvirt > > [root@vmhost2 ~]# virsh version > [...] Running hypervisor: QEMU 2.12.0 > [root@vmhost2 ~]# > [...] > When I try to start the guest I get the following error message: > > [root@vmhost2 ~]# virsh start

Re: What is expiry time represents in this format

Seconds since UNIX epoch of midnight on 1 January 1970. See, for example, https://www.epochconverter.com/ to convert to a human readable format. Cheers, Peter On Fri, 15 May 2020, 00:08 Santhosh Kumar Gunturu, < santhosh.978@gmail.com> wrote: > I see the output. > >

Re: Is it possible that "virsh destroy" does not stop a domain ?

Bernd, another option would be a mismatch between the message that "virsh destroy" issues and the message that force_stop() in the pacemaker agent expects to receive. Pacemaker is trying to determine the success or failure of the destroy based on the concatenation of the text of the exit code and

Re: Virtual Bridge "Network" for Sandbox

Paul, if you can set up a VLAN on your network infrastructure between the two hosts, I'll share the recipe I use with Open VSwitch. We trunk a VLAN between our hosts for sandboxed guests, setting up a OVS bridge on each host that handles guests but also has a connection onto the VLAN. Are you

Re: Is it possible to configure libvirt's MAC generation?

Specify the MAC address as part of the domain XML for the bootstrap node. See https://libvirt.org/formatdomain.html#elementsNICS. If using virt-install, set it as part of the --network option: "--network NETWORK,mac=12:34..." - Peter On Fri, 12 Jun 2020 at 18:07, Ian Pilcher wrote: > Is it

Re: apt libvirt package

Do you want this on CentOS 8, Ubuntu 20.04, or something else? The help we can give you will vary quite considerably depending on the distro you use; and, as you point out, RedHat-derived and Debian-derived distributions are very different. For CentOS, do you have the advanced virtualization

Re: SSH VM from outside, but not from host

... hang on. Why does the *bridge* have an IP address? Think of a bridge as being like a switch; it has no address of its own. Cheers, Peter On Tue, 15 Feb 2022 at 20:21, Wolf wrote: > On 15 Feb 2022, at 20:04, Peter Crowther > wrote: > > > And eno1 and eno2 are *

Re: SSH VM from outside, but not from host

And eno1 and eno2 are *both* connected to the same external switch, yes? Cheers, Peter On Tue, 15 Feb 2022 at 17:17, Wolf wrote: > Hi! > > 1) I have two network ports on my server. > - eno1 has the IP: XX1.XX1.XX1.150 > > - bridge0 has the IP: XX2.XX2.XX2.100 > and has

Re: Guest restarting after issuing a shutdown

virt-install is expecting the installation process to need a reboot partway through, so carefully restarts the guest on its first shutdown. Then it gets out of the way. Either change what virt-install thinks it's installing (not sure how, never done it), or write and enable a service during