>On Tuesday, October 29, 2019, 03:41:35 PM CDT, Andrew Bartlett via samba <samba at lists.samba.org> wrote: >>On Tue, 2019-10-29 at 19:23 +0000, Mircea Husz via samba wrote: >> We're adding a new datacenter and am taking the opportunity to >> upgrade Samba version to 4.11. We have three AD servers currently on >> version 4.7.9. >> I plan to add a new AD DC, version 4.11, by joining it to the domain. >> Can the domain function in production with three DCs on 4.7.9, and a >> new one running 4.11 ? >> Thanks,-Mike > >Yes, that should be fine. > >Andrew Bartlett >Can DCs be upgraded forklift-style, as in shutting down the VMs and bringing? up new VMs in their place, with the same name and address? Obviously counting on DC replication, which has worked without issues so far. -- To unsubscribe from this list go to the following URL and read the instructions:? https://lists.samba.org/mailman/options/samba
On 29.10.2019 22:16, Mircea Husz via samba wrote:>> On Tuesday, October 29, 2019, 03:41:35 PM CDT, Andrew Bartlett via samba <samba at lists.samba.org> wrote: >>> On Tue, 2019-10-29 at 19:23 +0000, Mircea Husz via samba wrote: >>> We're adding a new datacenter and am taking the opportunity to >>> upgrade Samba version to 4.11. We have three AD servers currently on >>> version 4.7.9. >>> I plan to add a new AD DC, version 4.11, by joining it to the domain. >>> Can the domain function in production with three DCs on 4.7.9, and a >>> new one running 4.11 ? >>> Thanks,-Mike >> Yes, that should be fine. >> >> Andrew Bartlett >> > Can DCs be upgraded forklift-style, as in shutting down the VMs and bringing > up new VMs in their place, with the same name and address? Obviously counting > on DC replication, which has worked without issues so far. > >If you demote the old DC before shutting down, and then freshly join the new one: yes that works. Regards, Norbert
On Tue, 2019-10-29 at 22:41 +0100, Norbert Hanke via samba wrote:> On 29.10.2019 22:16, Mircea Husz via samba wrote: > > > On Tuesday, October 29, 2019, 03:41:35 PM CDT, Andrew Bartlett > > > via samba <samba at lists.samba.org> wrote: > > > > On Tue, 2019-10-29 at 19:23 +0000, Mircea Husz via samba wrote: > > > > We're adding a new datacenter and am taking the opportunity to > > > > upgrade Samba version to 4.11. We have three AD servers > > > > currently on > > > > version 4.7.9. > > > > I plan to add a new AD DC, version 4.11, by joining it to the > > > > domain. > > > > Can the domain function in production with three DCs on 4.7.9, > > > > and a > > > > new one running 4.11 ? > > > > Thanks,-Mike > > > > > > Yes, that should be fine. > > > > > > Andrew Bartlett > > > > > > > Can DCs be upgraded forklift-style, as in shutting down the VMs and > > bringing > > up new VMs in their place, with the same name and address? > > Obviously counting > > on DC replication, which has worked without issues so far. > > > > > > If you demote the old DC before shutting down, and then freshly join > the > new one: yes that works.I would start that new DC in the new datacenter first, before you start demoting. That way if there are any issues you know while you still have a full set of DCs running. Also, modern Samba versions have backup tools, they are a good thing and running a remote backup first simulates most of a domain join so finds issues before anything destructive happens. Andrew Bartlett -- Andrew Bartlett https://samba.org/~abartlet/ Authentication Developer, Samba Team https://samba.org Samba Development and Support, Catalyst IT https://catalyst.net.nz/services/samba