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for virtualbox fencing, this might work https://code.google.com/p/fencevbox/ or you can run a virtual proxmox cluster in proxmox and use the fence_pve device, which has a man page.

The tricky part is between the fail and failover. when a node is down, the other nodes dont know if it just hung, or something else happend. if they decide to failover, and the "down" nodes was just hung up for a bit, you'll suddenly have to virtual machines (two instances of the "same" one)...

lol! how did i miss that?

Is there a way to manually alter the ram in a guest? would this be by altering balloon settings or hot plugging ram? what about cpu sockets or cores?

Should we have a separate forum for scripting/developing proxmox? splitting off the networking/firewall one seemed to go well.

changing the bridge of an interface, or even setting the interface with an equal setting, seems to create a new one. it changes the mac address unless you explicitly set that to be the same. root@proxmox1:~# pvesh get /nodes/proxmox1/qemu/100/config | grep net2 "net2" ...

Re: Help Needed -- I need to get Proxmox 3.4 Installed onto 3 Mac Mini's for a Deploy Theres also ganeti, which you can run on top of ubuntu. and openstack (just kidding :) )

Re: Help Needed -- I need to get Proxmox 3.4 Installed onto 3 Mac Mini's for a Deploy grab a linux box and a usb sata enclosure, and use that to install proxmox with kvm. something like this should work, assuming the ssd in the enclosure shows up as /dev/sdb. kvm -drive...

if the VM is using an image accessable from the host you can mount it like this, qemu-nbd -c /dev/nbd0 -P 1 vm-100-disk-1.qcow2 mount /dev/nbd0 /some/mount/point then, when your script is done changing its network config, have it unmount and release the nbd device, umount...

is it possible to rename the existing bridges, or delete and remake them with meaningful names?

when in doubt, run wireshark or tcpdump on that network and see for yourself. securing layer 2 (where the switches and bridges are) is a broad topic. in this case, i would make a bridge just for those two nodes to communicate and not let anything else on it. its the virtual equivalent of a...

s/static/manual/ did it. thanks

# network interface settings auto lo iface lo inet loopback iface eth0 inet manual iface eth2 inet manual iface eth4 inet manual iface eth1 inet manual iface eth3 inet manual iface eth5 inet manual auto bond0 iface bond0 inet manual slaves eth1 eth3 bond_miimon 100 bond_mode...

i found failover domains with google. heres the licensing overview. its pretty clear that you can only move virtual instances to physical nodes with enough licenses. still need to work out the details. ive done openstack and it was much easier than this figuring out this licensing nonsense...

I would make a 2 node ceph cluster and add a third node just to be a monitor. the 3rd monitor doesnt have to be much, just reasonably reliable. its only there for quorum. set replica size to 2 for now. you can change it later.

it said there were no results and asked me to make the page. the howto page didnt have failover either. is there another term?

it let me do that, but after rebooting, vmbr1 didnt exist. i had to give it an ip address just to get it to stay.

So windows server is licensed specifically to physical hosts. It seems (im not a lawyer), that to run windows server in an HA environment, you actually need to license windows to all physical hosts. since wed rather only pay double than a whole set of licenses for each physical node, is there a...

can you make a vmbr on a bond with no ip address? i tried, but the host only creates the bond, not the bridge. (ifconfig could not find it) tried adding a guest but that failed saying vmbr1 doesnt exist. added an address and it worked. was hoping to keep the bridge invisible on the network.

setting up is not hard if you happen to use ansible. inktank,the makers of ceph, maintain a nice set of roles and playbooks for it. its worth diving into some theory, but it mostly just works. to add it to your proxmox cluster, you copy one file, /etc/ceph/ceph.client.admin.keyring to...