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From Andrija Panic <andrija.pa...@gmail.com>
Subject Re: Primary Storage algorithm - when having more primary storages
Date Tue, 21 Apr 2015 07:27:50 GMT
THanks guys for this info!

On 21 April 2015 at 01:32, Prachi Damle <Prachi.Damle@citrix.com> wrote:

> By Default it is first fit - and that means the first one found with
> enough capacity. This results in the first one returned by the Db ordering
> to get allocated first until it has capacity.
> One can choose the algorithm using vm.allocation.algorithm as Abhi
> mentioned.
>
> -Prachi
>
> -----Original Message-----
> From: Abhinandan Prateek [mailto:abhinandan.prateek@shapeblue.com]
> Sent: Monday, April 20, 2015 8:37 AM
> To: dev@cloudstack.apache.org
> Subject: Re: Primary Storage algorithm - when having more primary storages
>
> Following algorithms are used to select storage pool:
>
> random, userconcentratedpod_random: RANDOM
> userdispersing: Select on basis of least no of volumes
> firstfitleastconsumed: Select on basis of remaining capacity
>
> These values can be set for “vm.allocation.algorithm” global config
> variable.
>
> -abhi
>
> > On 20-Apr-2015, at 8:17 pm, Andrija Panic <andrija.panic@gmail.com>
> wrote:
> >
> > Sorry for my ignorance - meaing completely random (except the scope ?)
> >
> > On 20 April 2015 at 16:01, Wei ZHOU <ustcweizhou@gmail.com> wrote:
> >
> >> /etc/cloudstack/management/componentContext.xml
> >>
> >>  <bean id="storagePoolAllocators"
> >> class="com.cloud.utils.component.AdapterList">
> >>    <property name="Adapters">
> >>      <list>
> >>          <ref bean="LocalStoragePoolAllocator"/>
> >>          <ref bean="clusterScopeStoragePoolAllocator"/>
> >>          <ref bean="zoneWideStoragePoolAllocator"/>
> >>      </list>
> >>    </property>
> >>  </bean>
> >>
> >>
> >> 2015-04-20 15:44 GMT+02:00 Andrija Panic <andrija.panic@gmail.com>:
> >>
> >>> Hi people,
> >>>
> >>> just wondering - if I have 3 primary storages (3 x NFS boxes) - what is
> >> the
> >>> volume alocation algoritm - is it compelte random, or is it like 1
> >> client's
> >>> volume goes always to 1 storage...
> >>>
> >>> Any info appreciated !
> >>>
> >>> Thanks,
> >>>
> >>> --
> >>>
> >>> Andrija Panić
> >>>
> >>
> >
> >
> >
> > --
> >
> > Andrija Panić
>
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-- 

Andrija Panić

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