Re: Can we have mutiple OSD in a single machine

[Sage Weil <sage@xxxxxxxxxxxx>]

On Wed, 11 Apr 2012, Tomasz Paszkowski wrote:
> Hi,
> 
> It'll not increase overall storage system performance. Partitioning of
> single disk drive gives you no performance gains.

It will in fact slow these down, because each ceph-osd instance will by 
doing periodic syncfs(2) calls and they will interfere.

sage

> 
> 
> 
> 
> 
> On Wed, Apr 11, 2012 at 2:38 PM, Madhusudhana U
> <madhusudhana.u.acharya@xxxxxxxxx> wrote:
> > Tomasz Paszkowski <ss7pro <at> gmail.com> writes:
> >
> >>
> >> Hi,
> >>
> >> Please correct me if I'am wrong. You would like to partition single drive ?
> >>
> > Yes,
> > I want to create 4 partitions in a  single drive. This will increase the
> > OSD number. Will this increase in OSD also increases performance ?
> >
> > Thanks
> >
> >
> >
> >
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> 
> 
> -- 
> Tomasz Paszkowski
> SS7, Asterisk, SAN, Datacenter, Cloud Computing
> +48500166299
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