[CentOS-virt] SR-IOV with Broadcom NIC??
Hi, We recently purchased some HP Gen8 servers with Broadcom BCM57810 NIC controllers. I am running CentOS 6.2 on these servers configured as KVM hosts. Has anyone gotten the Broadcom chips to run with SR-IOV on CentOS 6.2? Any clues on how to get it working? I see from the Broadcom glossy marketing docs that this chip supports SR-IOV, but I cannot find a procedure for configuring it. The Red Hat docs show how to configure the Intel chips and the Emulex web site includes a procedure to configure SR-IOV with their chips. In both procedures, there are vendor-specific steps. It is also pretty obvious that appropriate drivers and firmware are required, which I do not know if I have. Any input would be most welcome. Thanks, David ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] Send magic-sysrq from virtual serial console?
I am using CentOS 5.6 as a KVM host. My guests are running CentOS 5.6 with the only console being a virtual serial console. The guests are configured so magic-sysreq can be used to debug kernel issues. However, in order to send magic-sysrq from a serial port, I need to send a break. How does one send a break on the virtual console serial port provided by KVM/libvirt to guests? Thanks, David ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] How to send sysrq on "virsh console"
I have a KVM guest running on CentOS 5.5 that is in a bad state. I would like to dump the kernel information using magic-sysrq commands, but I cannot figure out how to send a break on the virtaul serial port provided by "virsh console". The guest is a standard install that will respond if I can send a break on the virtual serial port. Is it possible to send a break on the virtual serial port? Thanks, David ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] Best way to give guest promiscuous interface?
I am using CentOS 5.5 with KVM as a host and have a need for one guest to be able to have promiscuous read access to one port on the physical host (which is an HP BL460 G6 blade server with Intel 2 port 1Gb ethernet mezzanine card.) I initially tried to use PCI passthrough, but I was unable to get it to work. I set everything up as documented in RHEL documentation (http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/chap-Virtualization-PCI_passthrough.html, but I got the following error message: # virsh start c7e1b6_g1 error: Failed to start domain c7e1b6_g1 error: this function is not supported by the hypervisor: Device :0b:00.0 is behind a switch lacking ACS and cannot be assigned Does anyone have PCI passthrough working on a BL460 G6 with CentOS 5.5? I then tried to connect the guest to a bridge. This worked once I did a "brctl setageingtime 0" on the bridge. However, I don't know the best way to make this change persistent. Any suggestions? Is there a better way to do this? Thanks for any input, David ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] Anyone booting CentOS 5.5 KVM host from flash?
I am investigating building a live CD image to be used as KVM host and then putting that image on a USB key (to end up with a environment similar to ESXi). I see tools in in Fedora for both tasks, but I have not seen them in CentOS. Before I blaze a path, I was wondering if anyone has done this before.. Thanks for any feedback, David ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] Recent version of open-vm-tools SRPM??
I want to create some rpms to install the open-vm-tools on my CentOS 5.4 servers. I have not been able to find any srpms that are of recent vintage (The most recent I have found uses the version of open-vm-tools released in Dec. 2008). Before I spend a lot of time building a new srpm, I thought I would ask if anyone has already done this... Thanks, David ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Can I bridge a bonded and vlan tagged interface directly to a guest?
)
op_stop
;;
status)
show_status ${netdev} ${bridge}
;;
*)
echo "Unknown command: ${1}" >&2
echo 'Valid commands are: start, stop, status' >&2
exit 1
esac
David
On Mon, Aug 3, 2009 at 3:17 AM, Coert Waagmeester wrote:
>
> On Fri, 2009-07-31 at 11:08 -0400, David Knierim wrote:
> > I am running CentOS 5.3 x86_64 as my dom0 and CentOS 5.3 on my domU's.
> > On the dom0, I have two interfaces that are bonded and have tagged
> > VLANs. I can get the networks to the domU's by creating a bridge for
> > each of the VLANS (bond0.3, bond0.4, etc). On the domU, the
> > interfaces show up as eth0, eth1, etc.
> >
> > Is there a way to set up the network on the dom0 so my domU's see a
> > single interface with tagged VLAN support??
> >
> > Thanks!
> >David
> > ___
> > CentOS-virt mailing list
> > CentOS-virt@centos.org
> > http://lists.centos.org/mailman/listinfo/centos-virt
>
> Hello David,
>
> Sorry this is not an answer to your question, but how did you set up the
> bonds with xen?
>
> I tried doing the same, and did not win
>
>
> Regards,
>
> Coert
>
> ___
> CentOS-virt mailing list
> CentOS-virt@centos.org
> http://lists.centos.org/mailman/listinfo/centos-virt
>
___
CentOS-virt mailing list
CentOS-virt@centos.org
http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] Can I bridge a bonded and vlan tagged interface directly to a guest?
I am running CentOS 5.3 x86_64 as my dom0 and CentOS 5.3 on my domU's. On the dom0, I have two interfaces that are bonded and have tagged VLANs. I can get the networks to the domU's by creating a bridge for each of the VLANS (bond0.3, bond0.4, etc). On the domU, the interfaces show up as eth0, eth1, etc. Is there a way to set up the network on the dom0 so my domU's see a single interface with tagged VLAN support?? Thanks! David ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] How to pass messages from dom0 to domU??
Thanks for the feedback. I as already planning to have a dedicated management network and had also discussed the need for some network protocol to share state information. I now feel that using a network to share state information is the right solution in our case. While xenstore looks interesting, I am hesitant to implement anything that is Xen specific at this time. I want to be able to move to KVM or "the next big thing" as simply as possible. Thanks again, David On Thu, Jul 23, 2009 at 4:53 AM, Christopher G. Stach II wrote: > - "R P Herrold" wrote: > > > The addition of a new private network segment seems like > > overkill and needless additional fragility and complexity -- > > if one to one, use a remote syslog setup (viz., over UDP); if > > one to many (domU), use a multicast sender and listeners. > > > > Run either on the existing network seqment shared by the domUs > > and dom0 already. > > It's just RAM until you add a physical interface to the bridge, and then > it's just Ethernet. It would be difficult to argue that using either is > fragile or complex. Even compared against your suggestion, the only > difference is isolation, the general rule for administrative networks. > > If the skill level involved is negative, perhaps if the person is coming > from the Device Manager space, maybe the steps of adding a bridge, a vif > entry for each VM, and configuring the interface within each VM is way too > much to handle. However, IIRC, virtual network bridges are one of the > documented Xen use cases and are entry level stuff. The cost and added risk > thereof are next to zero. Being that worried about fragility in your basic > set of capabilities is silly, unless you have evidence to the contrary. > > If the messages are used to trigger things like shutdowns, scale back > services, or be published in any way that could be dangerous (inadvertently > notifying customers/competitors/attackers that your hardware sucks or what > your system architecture looks like), you'll need to involve crypto unless > you don't care if anyone inside shuts down your VMs. syslogd would not help > in this case, but at least SNMP could. > > -- > Christopher G. Stach II > > > ___ > CentOS-virt mailing list > CentOS-virt@centos.org > http://lists.centos.org/mailman/listinfo/centos-virt > ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] How to pass messages from dom0 to domU??
I apologize if this is a newbie question, but I have been unable to work out how to do this. I am adding code to my installation on dom0 (running CentOS 5.3) to monitor for hardware faults. If there is an issue, I want to propagate the status to all of the domUs (running CentOS 4.x or CentOS 5) running on the host. What are my options to do this?? Thanks! David ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
