Thank You Strahil ! On Thu, Oct 15, 2020 at 8:05 AM Strahil Nikolov <hunter86...@yahoo.com> wrote:
> >Please clarify what are the disk groups that you are referring to? > Either Raid5/6 or Raid10 with a HW controller(s). > > > >Regarding your statement "In JBOD mode, Red Hat support only 'replica 3' > >volumes." does this also mean "replica 3" variants ex. > >"distributed-replicate" > Nope, As far as I know - only when you have 3 copies of the data ('replica > 3' only). > > Best Regards, > Strahil Nikolov > > > On Wed, Oct 14, 2020 at 7:34 AM C Williams <cwilliams3...@gmail.com> > wrote: > > Thanks Strahil ! > > > > More questions may follow. > > > > Thanks Again For Your Help ! > > > > On Wed, Oct 14, 2020 at 12:29 AM Strahil Nikolov <hunter86...@yahoo.com> > wrote: > >> Imagine you got a host with 60 Spinning Disks -> I would recommend you > to split it to 10/12 disk groups and these groups will represent several > bricks (6/5). > >> > >> Keep in mind that when you start using many (some articles state > hundreds , but no exact number was given) bricks , you should consider > brick multiplexing (cluster.brick-multiplex). > >> > >> So, you can use as many bricks you want , but each brick requires cpu > time (separate thread) , tcp port number and memory. > >> > >> In my setup I use multiple bricks in order to spread the load via LACP > over several small (1GBE) NICs. > >> > >> > >> The only "limitation" is to have your data on separate hosts , so when > you create the volume it is extremely advisable that you follow this model: > >> > >> hostA:/path/to/brick > >> hostB:/path/to/brick > >> hostC:/path/to/brick > >> hostA:/path/to/brick2 > >> hostB:/path/to/brick2 > >> hostC:/path/to/brick2 > >> > >> In JBOD mode, Red Hat support only 'replica 3' volumes - just to keep > that in mind. > >> > >> From my perspective , JBOD is suitable for NVMEs/SSDs while spinning > disks should be in a raid of some type (maybe RAID10 for perf). > >> > >> > >> Best Regards, > >> Strahil Nikolov > >> > >> > >> > >> > >> > >> > >> В сряда, 14 октомври 2020 г., 06:34:17 Гринуич+3, C Williams < > cwilliams3...@gmail.com> написа: > >> > >> > >> > >> > >> > >> Hello, > >> > >> I am getting some questions from others on my team. > >> > >> I have some hosts that could provide up to 6 JBOD disks for oVirt data > (not arbiter) bricks > >> > >> Would this be workable / advisable ? I'm under the impression there > should not be more than 1 data brick per HCI host . > >> > >> Please correct me if I'm wrong. > >> > >> Thank You For Your Help ! > >> > >> > >> _______________________________________________ > >> Users mailing list -- users@ovirt.org > >> To unsubscribe send an email to users-le...@ovirt.org > >> Privacy Statement: https://www.ovirt.org/privacy-policy.html > >> oVirt Code of Conduct: > https://www.ovirt.org/community/about/community-guidelines/ > >> List Archives: > https://lists.ovirt.org/archives/list/users@ovirt.org/message/OGZISNFLEG3GJPDQGWTT7TWRPPAMLPFQ/ > >> > > >
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