On Tue, May 22, 2018 at 12:17 AM, Justin Zygmont <[email protected]> wrote:
> > > -----Original Message----- > From: Derek Atkins [mailto:[email protected]] > Sent: Monday, May 21, 2018 8:33 AM > To: Simone Tiraboschi <[email protected]> > Cc: users <[email protected]>; [email protected] > Subject: [ovirt-users] Re: oVirt: single host install > > Hi, > > Simone Tiraboschi <[email protected]> writes: > > > On Mon, May 21, 2018 at 7:49 AM, <[email protected]> wrote: > > > > Use case: small sites with a minimum number of vm's. > > > > Is there such a thing as a single host install? > > > > In the past we had the all-in-one mode but we deprecated it. > > Now the suggested mode is hosted-engine since you could expand it > > adding other hosts in the future. > > > > Sounds like "local storage" is useless then? > > I am running in this configuration and have had little problem. I > migrated from an old vmware-server platform, and, modulo a few hiccups > along the way and a few false starts as I was installing ovirt, it's been > pretty stable for me! > > Did you use NFS for all storage domains? > > > > Is it valid for production use? > > > > With a single host the upgrades will become more intrusive: without > > the capability to migrate your VMs on other hosts at upgrade time, you > > will be required to bring down everything. > > > > This is true -- I have to bring everything down when I want to upgrade the > system, especially the host itself. So I don't upgrade as often as I might > if I had multiple hosts where I could migrate. > > How can you do it without a second host and importing with a temporary > storage domain? > > > > What kind of storage? > > > > NFS in loopback could be problematic, I'd suggest gluster in replica 1 > > or iSCSI. > > I'm running loopback NFS and I've not encountered any issues. I've been > running this way since 2016-10-22. I did not understand Gluster enough and > wasn't sure how I could make a "replica 1" -- everything seemed to imply > you *NEEDED* 3 gluster hosts. So I went with what I knew -- NFS. > We did add support for single node gluster volume in 4.2 - see https://www.ovirt.org/documentation/gluster-hyperconverged/chap-Single_node_hyperconverged/ > This might be problematic if I move forward to a multi-host platform as > I'll have to "migrate" my storage -- specifically for hosted-engine -- > which IIRC requires a re-install (or some other drastic measure). > > -derek > > -- > Derek Atkins, SB '93 MIT EE, SM '95 MIT Media Laboratory > Member, MIT Student Information Processing Board (SIPB) > URL: https://urldefense.proofpoint.com/v2/url?u=http-3A__web.mit. > edu_warlord_&d=DwIGaQ&c=Vxt5e0Osvvt2gflwSlsJ5DmPGcPvTRKLJyp031rXjhg&r= > FiPhL0Cl1ymZlnTyAIIL75tE4L0reHcDdD-7wUtUGHA&m= > aceiPp0tdZww5F1VjIbEi55JnMpkWzYlKSpsa56bcG8&s= > Sxh76egRoJB5MNDdFRR9NubIiPK1tqZlSyW9tt4XzRQ&e= PP-ASEL-IA N1NWH > [email protected] PGP key available > _______________________________________________ > Users mailing list -- [email protected] > To unsubscribe send an email to [email protected] > _______________________________________________ > Users mailing list -- [email protected] > To unsubscribe send an email to [email protected] >
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