Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
On 18/03/2013 10:19, Lars Ellenberg wrote: > On Fri, Mar 15, 2013 at 10:22:19AM +0100, Cristian Mammoli wrote: >> Hi, as far as I understand a 3 node steup with dual primary and 3rd >> node for disaster recovery is not possible: >> >> http://www.gossamer-threads.com/lists/drbd/users/22188#22188 >> >> So I tried the following setup as suggested by Lars: > > (actually, I suggested to reconsider the "need" for dual Primary...) > Yes but unfortunately we are going to use drbd as backing device for a virtualization appliance (Proxmox VE) which requires dual primary to be able to live migrate vms. > > Design limitation in DRBD 8.x and this setup. > > For recovery, you need to do extra steps > (and if you know how, you can avoid some full sync). > You'd better consult with us first, before trying to pull this off. Doing a full resync in case of a failback from the DR site is not an issue. It won't be an everyday task. > With DRBD 9, we plan to have this deployment covered without the hacks, > but it will be some time yet, until 9 is good for production. Is this feature already implemented/documented? I can give it a try in my test lab. Thanks -- Cristian Mammoli APRA SISTEMI srl Via Brodolini,6 Jesi (AN) tel dir. +390731719822 Web www.apra.it e-mail c.mammoli at apra.it