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Re: vSAN


Well, that requires some math I guess, but certainly not less than 10Gbps...

You need to be aware of client vs replication traffic between storage nodes
(hosts, whatever) and do some math...

With single NVMe, being able to push 1GB/s at minimum = 8 Gbps ( 8Gbps per
single NVMe device)...and enough clients, I would guess at least 40 Gbps
network makes sense to leverage couple of NVMe per host/storage node.

Again depends also on client IO requirements as well... Its more an art,
than a science, to make right decision.

Cheers


On Tue, Dec 11, 2018, 23:09 Fariborz Navidan <mdvlinquest@xxxxxxxxx wrote:

> How much is minimum bandwidth requirement for storage network in which all
> underlying devices are NVMe SSD?
>
> On Wed, Dec 12, 2018 at 1:34 AM Andrija Panic <andrija.panic@xxxxxxxxx>
> wrote:
>
> > ScaleIO is supposed to be better/more performant...yep.
> >
> > On Tue, 11 Dec 2018 at 23:00, Ivan Kudryavtsev <kudryavtsev_ia@xxxxxxxxx
> >
> > wrote:
> >
> > > Fariborz, you also can use ScaleIO exported through iSCSI if you are ok
> > to
> > > go with local storage.
> > >
> > > вт, 11 дек. 2018 г. в 16:51, Fariborz Navidan <mdvlinquest@xxxxxxxxx>:
> > >
> > > > Something like VMware vSAN
> > > >
> > > > On Wed, Dec 12, 2018 at 1:15 AM Andrija Panic <
> andrija.panic@xxxxxxxxx
> > >
> > > > wrote:
> > > >
> > > > > CEPH ?
> > > > >
> > > > > On Tue, 11 Dec 2018 at 21:37, Fariborz Navidan <
> > mdvlinquest@xxxxxxxxx>
> > > > > wrote:
> > > > >
> > > > > > Hello folks,
> > > > > > Do you know of any good vSAN software working with CloudStack?
> > > > > >
> > > > > > Thanks
> > > > > >
> > > > >
> > > > >
> > > > > --
> > > > >
> > > > > Andrija Panić
> > > > >
> > > >
> > >
> > >
> > > --
> > > With best regards, Ivan Kudryavtsev
> > > Bitworks LLC
> > > Cell RU: +7-923-414-1515
> > > Cell USA: +1-201-257-1512
> > > WWW: http://bitworks.software/ <http://bw-sw.com/>
> > >
> >
> >
> > --
> >
> > Andrija Panić
> >
>