Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On Sun, Oct 30, 2011 at 01:35:53PM -0500, Trey Dockendorf wrote: > Hello, I'm looking to use DRBD for the first time with my existing KVM > servers to facilitate live migrations, and had a few questions. I've seen > lots of documentation on using DRBD with LVM based virtual machine disks, > but I prefer to use qcow2 images. Is it possible to have DRBD replicate > the volume all the images are stored on rather than each individual VM LVM > block device? What would be used to ensure that only one KVM node is > accessing the disks at a time until migration is needed? If anyone has any > advice or suggestions please let me know. This is my first time using > anything for file system replication. If you can accept using LVM (and not qcow), then Ganeti (code.google.com/p/ganeti) does the following: - run in single-master mode except during migration (it changes protocol from single to dual and back automatically) - manage drbd and kvm for you Hope this helps. regards, iustin