Thanks Stéphane! On Fri, Jun 5, 2020 at 9:42 PM Stéphane Graber <stgra...@stgraber.org> wrote:
> ZFS very much prefers seeing the individual physical disks. > When dealing directly with full disks, it can do quite a bit to > monitor them and handle issues. > If it's placed behind RAID, whether hardware or software backed, all > that information disappears and it doesn't really know whether to > retry an operation or consider the disk to be bad. > > The same is true if you ever end up using Ceph where you want a 1:1 > mapping between physical disk and OSDs, so in general I'd recommend > against hardware RAID at this point. > > Stéphane > > On Fri, Jun 5, 2020 at 4:59 PM Steven Spencer <sspencerw...@gmail.com> > wrote: > > > > Andrey and List, > > > > Thanks so much for your response, and we understand all of that. We know > that if we have 3 containers the server configuration is going to be > different than if we have 30 or 100, and that we will have to size RAM, > Processors, etc, accordingly. What I think we are more interested in is: If > we use ZFS, is there a recommended way to use it? Should we use RAID of any > kind? If so, should it be hardware or software RAID? We realize, too, that > we will need to size our drives according to how much space we will > actually need for the number of containers we will be running. Really it's > just about the underlying file system for the containers. It seems like > there should be a basic white paper or something with just guidelines on > best practices for LXD. That would really help us. We have found the LXD > documentation and we have actually used these docs. We've even used ZFS > under LXD on our first iteration of this project about 3 years ago. We are > now looking to do this again. The first time was mostly a success. Recenly, > we had the main LXD server die and for no apparent reason (hardware / > software / memory - the logs don't really give us much). Our snapshot > server was the savior, but now we need to repeat our earlier process, and > if we made mistakes, we would like to fix them in the process. > > > > Thanks again for the response, any further information would be helpful. > > > > Steven G. Spencer > > > > > > > > On Fri, Jun 5, 2020 at 2:20 PM Andrey Repin <anrdae...@yandex.ru> wrote: > >> > >> Greetings, Steven Spencer! > >> > >> > Is there a good link to use for specifying hardware requirements for > an LXD dedicated server? > >> > >> There can't be specific requirements, it all depends on what you want > to do, > >> how many containers to run, etc. > >> > >> > >> -- > >> With best regards, > >> Andrey Repin > >> Friday, June 5, 2020 22:05:54 > >> > >> Sorry for my terrible english... > >> > >> _______________________________________________ > >> lxc-users mailing list > >> lxc-users@lists.linuxcontainers.org > >> http://lists.linuxcontainers.org/listinfo/lxc-users > > > > _______________________________________________ > > lxc-users mailing list > > lxc-users@lists.linuxcontainers.org > > http://lists.linuxcontainers.org/listinfo/lxc-users > > > > -- > Stéphane > _______________________________________________ > lxc-users mailing list > lxc-users@lists.linuxcontainers.org > http://lists.linuxcontainers.org/listinfo/lxc-users >
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