Re: ceph cluster planning size / disks

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You should take into account that the cluster is full at a utilization of
95% and no more client requests can be processed.
75% you will see a near_full warning in the ceph status.

  joachim.kraftmayer@xxxxxxxxx

  www.clyso.com

  Hohenzollernstr. 27, 80801 Munich

Utting | HR: Augsburg | HRB: 25866 | USt. ID-Nr.: DE275430677



Am Mo., 18. Nov. 2024 um 14:07 Uhr schrieb Marc <Marc@xxxxxxxxxxxxxxxxx>:

> Thanks! Very good links! :)
>
> I need to subtract from the usable capacity max usable/server count to
> handle 1 server failure. Anything else I need to subtract?
>
>
> >
> > https://docs.clyso.com/tools/erasure-coding-calculator/
> >
> >
> >
> > Am Sa., 16. Nov. 2024 um 10:04 Uhr schrieb Marc Schoechlin
> > <ms@xxxxxxxxxx>:
> >
> > > Hi Anthony,
> > >
> > > this is a nice one! The original mail had a broken link :-)
> > > https://www.osnexus.com/ceph-designer
> > >
> > > Perhaps this would also be a good project to build an open platform
> > that
> > > helps to do a dteailed planning of Ceph clusters in general (server
> > and
> > > switch hardware, different types of pools, service distribution,
> > placement
> > > groups, ....).
> > > Especially if it also had the option of using or creating hardware
> > > profiles (that the user creates himself or that interested hardware
> > > manufacturers can create) from different server and switch
> > manufacturers
> > > and comparing them in terms of costs, energy consumption, throughput
> > and
> > > usable memory.
> > >
> > > Regards
> > > Marc
> > >
> > > Am 15.11.24 um 16:55 schrieb Anthony D'Atri:
> > > > https://www.osnexus.com/ceph-designer;
> > > >
> > > >> On Nov 15, 2024, at 10:51 AM, Marc<Marc@xxxxxxxxxxxxxxxxx> wrote:
> > > >>
> > > >>
> > > >> I was wondering if there is some online tool that can help you with
> > > calculating usable storage from nodes, drives per node,
> > replication/erasure
> > > used etc.
> > > >>
> > > >>
>
>
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