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 !
> >>
> >>
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> >
>
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