Hi All,
Briefly talking about the feature - AutoScale feature allows you to scale up or
scale down the virtual instances that are being load balanced by load balancers
like NetScaler based on certain conditions. This feature is an extension to the
ELB feature in CloudStack. This feature is similar to AWS autoscale feature
except that monitoring of server's(guest vm) health is done by load balancers
like NetScaler and provisioning is done by CloudStack. Monitoring done by
loadbalancers has couple of benefits
- Loadbalancers are better placed to understand the health of the
server as traditionally LB devices had monitoring capability inbuilt in it.
- Decisions can be based not just on certain conventional counters like
CPU, Memory etc but also on network counters like response time, bandwidth,
connections etc
- Decreases the load on CloudStack management server.
Thanks,
Ram
> -----Original Message-----
> From: Ram Ganesh
> Sent: 02 July 2012 22:51
> To: 'cloudstack-dev@incubator.apache.org'
> Subject: AutoScale feature....
>
> Hi All,
>
> Please find the draft functional specs for AutoScale feature here -
> http://wiki.cloudstack.org/display/DesignDocs/Auto+Scale+Feature .
> Please review and let us know your feedback
>
> Thanks,
> Ram
