Ubuntu Servers :: Kvm Libvirt Lvm VM Consistent Backup - Online And Offline
Apr 12, 2011
What are the solutions to consistently backup a set of VMs stored in disk images (qcow2 or raw) on a filesystem on a lvm volume (with possible snapshots).
- Online : Ideally, I would like to send a sync to all VMs before pause and snapshot, but it seems that it's not possible with KVM (it was with XEN). The save command seemed to be an option, but it crashes some VMs. So, what do you recommend to backup these VMs online ?
- Offline : Is there a command to shutdown all vms, and start them back after snapshot/backup ?
I just finished getting a semi-old desktop computer up and running with ubuntu server edition. It's running subversion and samba for my office of 5 people. I was wondering if there was a simple online/cloud based backup service to automatically back up my subversion repository and samba shares in case of any hardware problems?
After moving from 9.04 to 10.04, the single most annoying issue for me is Empathy. Yes, it doesn't pop up a new window when a new message arrives. Yes I missed few messages because of that (no, turning the small "mail" icon to green doesn't get my attention as much as a new window). But, I can live with this.
The real issue for me is it shows Offline contacts as Online. Let's start Empathy and let's say you have 10 contacts as Online. If one of them goes Offline, Empathy still shows the contact as online. You will only find this out when you try to send a message.
We use a Linux server with AFS on it. I changed the linux root password using passwd. The new password will let me log in as root but when I try to change the AFS admin password it asks for the root password. When I put in the password that it let me log in as root. It tells me authentication failed. And when I run the password command with -admin admin, it asks for the admin password. I put in the admin password that worked before I changed the root and it says authorization failed.
So I am going to dual boot install my desktop at home with windows and ubuntu 10.10. This desktop does not have an Internet connection. However, I have a laptop (hp g61) that I plan on doing the same type of boot config to. So my question is... If I have driver problems or want programs for my desktop, can I get these with my laptop and then transfer to my desktop?. I know I can get some programs from a .dev file I've already got with a lot of various programs that will (I guess) automatically install. My real concern is drivers as I have heard that ati video cards tend to have some problems.
In Ubuntu I can easily transfer packages from offline machine into online machine using APTonCD feature. In fedora ,Is there anything similar by which I can transfer my packages of online machine into the offline machine
Some time ago, while I was still using Ubuntu 8.10 I began accessing Internet through a proxy server. Even though I had set my system proxy settings - including authentication - to pass the proxy, my online backup service (Jungle Disk) stopped connecting. I finally figured out that I had to include proxy port in the Jungle Disk Desktop tool's configuration (like this: 192.168.0.1:8080). That worked fine until I recently upgraded to Ubuntu 10.04 - with the identical proxy setup. This time I can't get any connection at all. Here's the Jungle Disk report:
How is it possible to store and backup our files online? I don�t know that how this concept actually works. is there any kind of device needed while storing data at another location
I am writing my own anacron script that backs up my most important files from my laptop to my office pc regularly using rsync. However, sometimes my laptop is on when anacron starts the back-up job but my laptop is offline, so that it cannot rsync with my desktop. Is it possible to tell anacron to re-schedule the task to either the next time I'm online again or to some later date (preferably not the next scheduled time, but some time before)?
I have a scheduled backup to run on our server at work and since the 7/12/09 it has be making 592k files instead of 10Mb files, In mysql-admin (the GUI tool) I have a stored connection for the user 'backup', the user has select and lock rights on the databases being backed up. I have a backup profile called 'backup_regular' and in the third tab along its scheduled to backup at 2 in the morning every week day. If I look at one of the small backup files generated I see the following:
Code:
-- MySQL Administrator dump 1.4 -- -- ------------------------------------------------------ -- Server version`
[code]....
It seems that MySQL can open and write to the file fine, it just can't dump
Does anyone know of any decent enterprise level backup solutions for Linux? I need to backup a few servers and a bunch of desktops onto one backup server. Using rsync/tar.gz won't cut it. I need like bi-monthly full HDD backups, and things such as that, with a nice GUI interface to add/remove systems from the backup list. I need basically something similar to CommVault or Veritas. Veritas I've used before but it has its issues, such as leaving 30GB cache files. CommVault, I have no idea how much it is, and if it supports backing up to a hard drive rather than tape.
I just installed ubuntu server 9.04. Now i wanna install GUI on that such as Xinit, and others, theni stuck because i wannna install it without connection (from source / offline).
How do clients handle offline syslog servers?Will the log files be buffered locally to be sent to the syslog server when it comes back online, or will any log data generated during downtime be lost in cyber space?
I have a LAMP server setup with AjaXplorer that runs locally with a static IP address. All you have to do, if you're connected to our network, is go to code...
Now I want to take the next step and make it available on the internet, so that I can access my files from anywhere in the world.
How do I go about doing this, and what precautions do I need to take?
I installed ubuntu 10.10 server from an usb stick. I do not have access to a wired connection and do not have a CD drive, so now I need to configure the wireless connection.for that I need to have wireless-tools which if i am not wrong are not installed by default so the question is: how can I install the wireless-tools package from an usb using only command line? note: I got internet access from another ubuntu-desktop PC so i can download any package needed, etc.
I currently have a group of 3 servers connected to a local network. One is a web server, one is a mysql server, the other used for a specific function on my site (calculation of soccer matches!).
Anyway, I have been working on the site a lot lately but it is tedious connecting my USB hard drive to each computer and copying the files. This means I am not backing up as often as I should...
I have a laptop connected to this same network that I use for development so I can SSH into to the computers, is there any software for ubuntu that can take backups of files that I choose on multiple computers? I know I could rsync but is there something with more or an GUI?
Then I can just every 2 days move the most recent backup from my laptop to the USB drive. Then I will have the backup stored in 2 places if things go kaboom somewhere.
I'm running a Windows 7 guest using Virtual Machine Manager to launch my "console" to the VM. I believe it uses VNC to connect to the console. I'd like to have clipboard synchronization so I can copy from the host and paste to the guest.
I am currently using Centos 6. I want to use the latest version of libvirt (libvirt 0.9.4). The machine already has libvirt 0.8.1 installed . I did yum remove libvirt to remove the existing libvirt and I compiled 0.9.4 from source using :
./configure --prefix=/ make make install ldconfig /etc/init.d/libvirtd start
After the installation is complete, I wanted to use the virsh interface. Once I enter virsh , I get :
virsh /lib/libvirt.so.0: version 'LIBVIRT_PRIVATE 0.8.1' not found (required by virsh)
Whilst this may sound trivia, its some what annoying. I've just upgraded to Natty Narwhal, from Meerkat.On Meerkat i had customised the feel of my desktop to my liking, however whilst it may have kept some of the customisation in Natty, i think there maybe a bug.I boot up and some days my Awn Dock looks different.Sometimes the icons on the dock lookcompletely different to the ones i have selected. Also my desktop icons change. My mouse pointer that i have changed sometimes works and sometimes resorts back to the original mouse pointer.
I just wanted to know opensource & proprietary products/tools built using libvirt (like oVirt, AbiCloud, archipel). I am a linux newbie and in a new job wherein, this is my first task to work on libvirt and create a report on existing products n benefits. it will be nice if someone guides me on libvirt advantages. If this is not the right place to ask. do suggest me an alternative website to find the information.
and probably to perform other tasks requiring root privileges (?).I don't know very much about polkit, so I don't know if I'm not missing (or messing up) something.This is the error I get under 11.4:This is the expected behavior (11.3)No matter if I run Gnome, Kde or another de. The process highlighted in red on picture 2 is the one started when a user click on connecting. It fails to start on 11.4 - probably due to my own mistake (?) but I don't know. I could start virt-manager with gnomesu, kdesu or xdg-su -c, that would just start the program as root, but it shouldn't be necessary
I get this error message when I open up virt-manager (logged in as a typical user):
Code: Unable to open a connection to the libvirt management daemon. Libvirt URI is: qemu:///system Verify that: The 'libvirtd' daemon has been started Manually trying to start the daemon results in: Code: error : qemudWritePidFile:508 : Failed to open pid file '/var/run/libvirtd.pid' : File exists virt-manager works just fine when I log in as root.
I am new to virtual machines in general, and currently playing with the XEN-based VM in CentOS 5.5. Question: if neither virt-manager nor virsh (using "virsh edit <guest name>" and changing the name in the XML file) are designed to actually change a guest's name...then what is the recommended procedure for doing this?
