Ganeti is a management tool for clusters of virtual machines. It takes advantage of open source software like the Xen and KVM hypervisors to provide management capabilities for clusters of virtual machines spread across physical machines.

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ganeti network: change bridge name

I try to add an instance to network, first first I need to connect the network to a bridge. I'm using bridge vbr0 instead of standard xen-br0, gnt-cluster info shows that ganeti has the default set ...
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Boot a qcow2 image in Ganeti

I am very confused on how Ganeti actually boots machines. My problem is quite simple. I have a qcow2 image in a machine and I want to boot it. How can I do it? I don't really understand the idea of ...
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Create instance on specific ganeti group

There is a ganeti cluster with 2 ganeti groups on it. Both are working - one is purposed for one type of services, second for other. Is there any way to create instance on specific group using ...
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10 views

Start a script on ganeti node after instance is started or migrated

There is a ganeti cluster. Is there any way to run script on ganeti node after some instance is start running on that node? In both situations - starting from scratch, and migrating live from another ...
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converting Ganeti instance to vmdk fails

I have exported an instance from ganeti using this command : gnt-backup export -n I get these files: /srv/ganeti/export/win2k8.itlao.local# ls 6dac4bb5-19e9-4917-8233-39cecfbe0e39.disk0_data.snap ...
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56 views

How can I run the same command on all Ganeti nodes?

When administering a Ganeti cluster, it is important to maintain one of the main assumptions Ganeti does: all nodes (at least inside the same group) are equal. How can I run the same command on the ...
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258 views

How do I enable a disk template in Ganeti?

I want to create a virtual machine with an RBD volume for storage. However, when I run the relevant gnt-instance add -t rbd ... incantation, I get: Failure: prerequisites not met for this operation: ...
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92 views

Two Xen hosts with a crossover between and failover public IP between them both. configuration?

I have two servers with Ganeti installed (Xen) I want to be able to migrate the instance between the two servers so the instance's network configuration needs to be host agnostic. The datacenter that ...
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2answers
2k views

Ganeti : Installing Centos/RHEL Instance

I have installed Ganeti on Centos 6.3 with DRBD and have added couple of nodes. However, now I am facing next challenge of installing a Centos Guest/Instance on top of it. I tried using ...
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1answer
565 views

Ganeti and automatic failover

I'm building a simple 2-node cluster with Ganeti+DRBD... What is the recommended way to setup automatic failover? I'm used to Heartbeat, but they say it should be avoided with my setup.
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558 views

How Ganeti deals with Fencing

I found out that proxmox doc says a lot abou Fencing. I haven't found anything about it in Ganeti doc. Also I screeched Ganeti Google Group Archive and I found similar question but answer was that ...
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Ganeti vs Proxmox [closed]

I'm system administrator in small software house. I'm going to virtualise our servers. The main reason for doing this is providing highest possible uptime, but probably it will also increase resources ...
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2answers
520 views

Ganeti KVM settings

When I have played with KVM using libvirtd/virsh, I disabled section in libvirt's xml configs for VMs an this gives me CPU usage from 7-8% in idle mode per VM to 1-2% for windows guests. This was a ...
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1answer
461 views

Ganeti master IP and cluster name

I'm trying to set up a ganeti cluster. My problem is that I don't understand the role of the "cluster name" and the associated "master IP". The installation requirement is that every node and future ...
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1answer
618 views

Linux-KVM and Ganeti - help me understand / deploy

Looking to build a small (but future proof) Linux-KVM cluster with Ganeti I'm starting my setup with 2 HVM machines, each with 2x 500GB SATA disk. I've studied the documentation and I have a fair ...
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2answers
623 views

Ganeti 'template' based OS, possible?

Just discovering ganeti and playing around; from what I saw it's only possible to create instances by 'de-bootstrapping' a flavour of OS. I'm wondering if it's possible to have 'ready to go' ...
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2answers
1k views

ganeti fails to install debootstrap instances on squeeze

ganeti 2.4-rc3 setup on my squeeze server went fine and I can successfully create instances: $ gnt-instance add -t plain -s 5G -o debootstrap+default -n obi-wan vm01 Wed Mar 2 17:12:51 2011 * disk ...
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656 views

Debian Squeeze Ganeti - lvm.conf filter problem

I've been integrating the ganeti project and it has a problem with the ":" character at the PV ( physical volume ), name. By adding the line filter = [ "r|:|", "a|.*|"] in /etc/lvm.conf, when creating ...
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218 views

How do I remove an interface from a virtual host on ganeti?

I added a second interface to a virtual host by mistake, and now I want to remove it. I couldn't find a command to do it, though. How do I accomplish that?