You could look into third party solutions such as scalr. http://scalr.com/features/multi_cloud_support/
Not used that myself so can't comment on its effectiveness, but its out there! On 19 April 2013 03:29, Oliver Leach <oliver.le...@tatacommunications.com>wrote: > From a CloudStack perspective it is only the NetScalers that autoscale, > the F5's do not offer that functionality in Cloudstack. I was asked this > exact question recently at the Cloudstack European meetup. Cloudstack is > absolutely scalable, both horizontally and vertically. If you are not able > to use the Netscalers in your cloud environment, then you could script the > autoscaling yourself. The challenges I think people face is to > automatically get your app configured ready to autoscale before deploying > the app in your Cloudstack environment. You can use templates, but I would > recommend a config tool like chef or puppet to set the configuration for > you, then use the Cloudstack API to deploy those VMs and dynamically > configure your application settings to suit the environment. Like Geoff > mentioned, create the VMs when your load hits a limit to autoscale, then > destroy them when the load drops.. > > > Oliver Leach > InstaCompute > > > -----Original Message----- > From: Jerry Jiang [mailto:jerry.ji...@tyxtech.com] > Sent: Friday, April 19, 2013 2:24 AM > To: users@cloudstack.apache.org > Subject: Re: CS supports elastic features? > > This situation only works for stateless session connection architectures > like web service. > If so, that means CS need to notify Loadbalancers the scale-up happens so > that LB can redirect Load to new instance. > > Does it work for handware LB(F5?) as well? > > Jerry Jiang > > -----邮件原件----- > 发件人: Mathias Mullins [mailto:mathias.mull...@citrix.com] > 发送时间: 2013年4月19日 星期五 2:10 > 收件人: users@cloudstack.apache.org > 主题: Re: CS supports elastic features? > > I think it should be noted that this feature is currently only available > with the NetScaler load balancer. This is not a CS standalone feature if > that is what you are looking for Wang. > > Matt > > > On 4/18/13 12:49 PM, "Geoff Higginbottom" > <geoff.higginbot...@shapeblue.com> wrote: > > >Hi Wang, > > > >I guess you might be right, and if so then then answer is still yes as > >using the AutoScaling features, CloudStack can create new VMs when the > >CPU, RAM or Bandwidth usage exceeds set parameters, and then destroy > >those VMs when the load drops again - truly elastic > > > >Regards > > > >Geoff Higginbottom > > > >D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581 > > > >geoff.higginbot...@shapeblue.com > > > > > >-----Original Message----- > >From: Wang Fei [mailto:pytho...@gmail.com] > >Sent: 18 April 2013 16:31 > >To: users@cloudstack.apache.org > >Subject: Re: CS supports elastic features? > > > >I guess the Elastic he means is auto-scale instance based on the load > >of instance. > > > > > > > > > >---- > >best regards > > > > > >On Thu, Apr 18, 2013 at 3:54 PM, Geoff Higginbottom < > >geoff.higginbot...@shapeblue.com> wrote: > > > >> Hi Jerry, > >> > >> You can scale out the storage and compute layer horizontally to give > >> you massive scale should you require it. > >> > >> A user can create as many VMs and consume as much storage as the > >> Cloud Admins allow. > >> > >> You can also burst out to other clouds such as AWS giving you even > >> more options. > >> > >> Regards > >> > >> Geoff Higginbottom > >> > >> D: +44 20 3603 0542 | S: +44 20 3603 0540 | M: +447968161581 > >> > >> geoff.higginbot...@shapeblue.com > >> > >> > >> -----Original Message----- > >> From: Jerry Jiang [mailto:jerry.ji...@tyxtech.com] > >> Sent: 18 April 2013 08:46 > >> To: users@cloudstack.apache.org > >> Subject: CS supports elastic features? > >> > >> Hello all, > >> > >> > >> > >> Would like to know if CS support Elastic features for computing > >> resource or storage resource? > >> > >> > >> > >> jerry > >> > >> This email and any attachments to it may be confidential and are > >> intended solely for the use of the individual to whom it is addressed. > >> Any views or opinions expressed are solely those of the author and do > >> not necessarily represent those of Shape Blue Ltd or related > >> companies. 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