similar to: proper way to snapshot

Hi, Wondering if this is the proper bridging technique to use for Centos6+KVM; http://wiki.centos.org/HowTos/KVM Before I embark on this again, I would like to do it by the book. Thanks in advance, - aurf

I have an oVirt engine node that currently runs the system on a qcow2 based virtual disk, and an NFS export volume on RAW. I'd like to take a snapshot before a somewhat risky upgrade of oVirt and can't with the raw image attached. Looking at the documentation for the snapshot XML, I created this XML file for the snapshot <domainsnapshot> <name>20120802</name>

Hi, I'm using libvirt(1.0.0) with python, for managing virtual machines.. but while taking multiple snapshot domain is crashing... Snapshot XML ------------------------- <domainsnapshot> <name>snp1</name> <creationTime></creationTime> <description>Description</description> <state></state> <domain>

Hi, dear friend. My guest has two disks, vda and vdb. both are qcow2 local file. When guest running state. I want to take the vda snapshot of guest(just vda, no include vdb). but I met libvirt do snapshot for all disks of guest. About methods for follow: 1、 ``` bash virsh snapshot-create-as 8x0lbzvS --name sys_disk3 --disk-only --diskspec "vda,snapshot=external" ``` ``` result

I've created a very basic snapshot XML file, to allow for a description of the snapshot. However when running the virsh command, it doesn't like the formatting. # virsh snapshot-create proxy_0 /vmstore/proxy_0/proxy_0_ss.xml error: XML description for failed to parse snapshot xml document is not well formed or invalid This are the XML file contents... # cat proxy_0_ss.xml

Hi Libvirt, Does libvirt-python currently support the creation of external snapshots? I ran domain.snapshotCreateXML(xml) where xml is <domainsnapshot> <name>snap1</name> <description>Snapshot of OS install and updates</description> <disks> <disk name='vda'> <source

Hello, a problem occurred during making a snapshot for a guest, ask for help... 1. the xml for snapshotdomain like this: # cat deployment.1 <domainsnapshot> <name>a</name> <disks> <disk name='/home/qcow2/disk.0'> <driver type='qcow2'/> <source file='/home/qcow2/disk.3'/> </disk> </disks>

Hey When I want to take a snapshot for a Domain by using virDomainSnapshotCreateXML. The Error as below happen: libvir: QEMU error : Requested operation is not valid: Disk '/var/lib/libvirt/images/fedora-qcow.qcow2' does not support snapshotting The snapshot Configuration is : <domainsnapshot> <description>Snapshot of OS install and updates</description>

Hi, Has any one had problems with mail clients were your DNS is like this; doman.com MX 50 mail.domain.com domain.com MX 100 mail2.domain.com domain.com CNAME www.domain.com -aurf

Martin, Actually domain doesn't crash, but it state got changed to pause, till the snapshot action got complete. Its a time consuming process. so here is my requirement. I want to take snapshot of a Running Domain on every 3 hours,( at a later point of time It should be possible to revert to the actual domain state when I took the snapshot), I'm using libvirt APIs python bindings, there

Hi, So I updated my guest from 5.1 to 5.8 via a complete yum update, many many packages BTW. I shutdown the guest, change its "Disk bus" from IDE to Virtio and then upon boot, I get kernel panics as no disk can be found. I do get the splash screen at first however. My guest has /dev/hda, should I change its fstab to reflect /dev/vda instead? Thans in advance, - aurf

Hi all, I noticed that my ssh logins to a particular server were taking up to 5 seconds to finally login. My tcpdump -vv weren't producing much output (not good) and my pings to and from that host were normal and almost identical to other hosts on my subnet that had no ssh login delay issues. Log files also showed nothing alarming. My hosts file was missing this at the very end of

Hi all, I'm migrating from my Cent 5.x LDAP server to Cent 6.x. But wondering if there are any advantages to the Directory Server package itself? Been using regular old LDAP server for years now. I manage it both via Webmin and command line as well as some tweaks to a Drupal module. The fail over has always sort of bothered me as the secondary LDAP servers pull vs being pushed to, at

Hi, I've been using qemu-img resize for a few days now, seems fine. But if I du the VMs image file, it still shows the size before resizing. Inside that VM, the new size shows correctly. Is qemu-img resize the right tool for this? Once I qemu-img resize, I then use various fdisk/ LVM tools, etc... to resize within the VM just incase you all were wondering. - aurf

Hi all, Don't mean to double post as I sent this to the general Centos list. But, does any one have 802.3ad (mode 4) working on there Centos6 KVM setup? This would be a bridge+bond setup of course. If not possible, would I still bond the interfaces on the switch and then bond them in the guest rather then from within the hypervisor? - aurf

Hi, I'm VNCing into my KVM server and opening virt-manager. When trying to manage a newly created guest, I'm finding the mouse pointer stays on the outside of its virtual machine window. Any insight as to why its tracking so oddly? Thanks in advance, - aurf

Hi all, I've a particular host on my network that when I run; rexec -l username -p password remotehost command it just hangs. When I do; rexec -a -l username -p password remotehost command i get; Where are you? If I do; rexec -l username -p password localhostname (not just localhost but its actual name) command it works. Any ideas would be very appreciated. - aurf

Hi all, I've a 30TB hardware based RAID array. Wondering what you all thought of using ext4 over XFS. I've been a big XFS fan for years as I'm an Irix transplant but would like your opinions. This 30TB drive will be an NFS exported asset for my users housing home dirs and other frequently accessed files. - aurf

Hello, I want to do a snapshot which the VM has volumes. But I want to skip the volume check when I do the snapshot. (Which means I want to do a snapshot without detaching the volume) So I try to write a snapshot XML refer by http://libvirt.org/formatsnapshot.html as following: vda is my VM basic disk (qcow2) vdb is a volume (raw) ================ t1.xml =============== <domainsnapshot>

Hello, I am working on a script to automatically create live snapshots of running VMs using qemu-kvm 1.4.0 and libvirt 1.0.2. If a VM has multiple disks, I'd like to back them up individually with separate calls to snapshot-create-as, so I can more easily manage the disk images. The code I have now is essentially as follows: virsh snapshot-create-as --domain "vmname" --name