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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4answers
5k views

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 ...
5
votes
1answer
556 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 ...
4
votes
1answer
676 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.
4
votes
2answers
566 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 ...
3
votes
2answers
582 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 ...
3
votes
1answer
71 views

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 ...
2
votes
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 ganeti-...
2
votes
2answers
651 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' ...
2
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2answers
134 views

ganeti-metad bind address based on cluster configuration

On my machine (debian jessie) ganeti-metad listens on all interfaces: # netstat -lepn | grep metad tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 0 66528 ...
1
vote
1answer
670 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 ...
1
vote
1answer
68 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 ...
1
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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 0,...
1
vote
0answers
36 views

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 ...
1
vote
0answers
14 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 ...
1
vote
0answers
123 views

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 ...
0
votes
1answer
34 views

Ganeti disks degraded drbd cs:NetworkFailure

I have an instance (with 2disks) on Ganeti with both disks degraded (probably due to a connection problem?). This instance was working correctly for many years until this morning. On my master $ gnt-...
0
votes
1answer
288 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?
0
votes
1answer
362 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: ...
0
votes
1answer
671 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 ...