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From Mindaugas Milinavičius <uabstarn...@gmail.com>
Subject RE: VM per HOST?
Date Wed, 13 Apr 2016 08:00:07 GMT
Server/blade is HBA 8Gb FC connectivity with switch. Its more then enough:)
13 апр. 2016 г. 10:57 пользователь "Paul Angus" <paul.angus@shapeblue.com>
написал:

> I'd agree with that. Memory is nearly always the limiting factor when it
> comes to VMs per host.
>
> -- unless you're talking about blades, and then you have to start looking
> carefully at the connectivity between the chassis and the switch fabric.
>
>
> Kind regards,
>
> Paul Angus
>
> Regards,
>
> Paul Angus
>
> paul.angus@shapeblue.com
> www.shapeblue.com
> 53 Chandos Place, Covent Garden, London  WC2N 4HSUK
> @shapeblue
>
> -----Original Message-----
> From: uabstarnita@gmail.com [mailto:uabstarnita@gmail.com] On Behalf Of
> Mindaugas Milinavicius
> Sent: 11 April 2016 13:53
> To: users@cloudstack.apache.org
> Subject: Re: VM per HOST?
>
> Thank you, i'm thinking something like that too.....
>
>
>
>
> Pagarbiai
> Mindaugas Milinavičius
> UAB STARNITA
> Direktorius
> http://www.clustspace.com
> LT: +37068882880
> RU: +79651806396
>
> Tomorrow's posibilities today
> <http://www.clustspace.com/>
>
>    - 1 Core, 512MB RAM, 20GB SSD, 1Gbps, Unlimited, Location: Romania, Los
>    Angeles, Ashburn Washington - 11EUR
>    - 1 Core, 1024MB RAM, 30GB SSD, 1Gbps, Unlimited, Location: Romania, Los
>    Angeles, Ashburn Washington - 18,7EUR
>    - 2 Cores, 2048MB RAM, 40GB SSD, 1Gbps, Unlimited, Location: Romania,
>    Los Angeles, Ashburn Washington - 27,5EUR
>    - 4 Cores, 4096MB RAM, 100GB SSD, 1Gbps, Unlimited, Location: Romania,
>    Los Angeles, Ashburn Washington - 46EUR
>
>
> On Mon, Apr 11, 2016 at 3:49 PM, Stavros Konstantaras <
> s.konstantaras@uva.nl
> > wrote:
>
> > In our case (general purpose VMs) we decided to have the system's RAM
> > as the reference point to create our VM limit. For example, if the
> > server has 128GBs of RAM and the default VM profile is 1 vCPU + 4Gbs
> > RAM, then our upper limit is roughly 30VMs per server.
> >
> > Over provisioning the CPU is usually not a problem but over
> > provisioning the RAM can be the start of many problems .
> >
> > Kind Regards
> > Stavros
> >
> > ----------------------------
> > Stavros Konstantaras
> > Science faculty Research IT support (FEIOG) University of Amsterdam,
> > Science Park 904, 1098 XH
> >
> > Fingerprint: E5E5 9B19 D1CD 88CD 4763  3465 A8DC 7C92 330F D59A
> >
> > > On 11 Apr 2016, at 13:09, Erik Weber <terbolous@gmail.com> wrote:
> > >
> > > On Mon, Apr 11, 2016 at 1:02 PM, Mindaugas Milinavičius <
> > > mindaugas@clustspace.com> wrote:
> > >
> > >> Hello,
> > >>
> > >> how many VM's do you creating per host?
> > >> What you prefer E5-2650v3 or E5-2630v3 (less power, 2x cheaper CPU,
> > >> and only ±20% less benchmark)
> > >>
> > >>
> > > I'd say it depends on the workload. For generic purpose VMs CPU is
> > usually
> > > not the bottleneck and personally I'd pick the cheaper one.
> > >
> > > You should look into v4 CPUs while at it.
> > >
> > > --
> > > Erik
> >
> >
>

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