SimpliCloud

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Features of Netmagic SimpliScale

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SimpliScale Fixed Instances

• These are VMs that get created by default, when SimpliScale is configured. The configuration of these instances would be exactly similar to that of the Master VM as configured, when the Clone was created
• Currently designed to provision 2 VMs to start with, these VMs are normally in the ‘off’ state. They will be automatically turned ‘on’ by SimpliScale, as and when required
• SimpliScale will keep a track of the VMs’ utilization and thus you get billed for the time these VMs are actually used. All resource utilization would be rounded off to the next hour
• Once the system detects a DownScale threshold, as per configured Cooling Period, it will automatically turnoff these VMs

SimpliScale Dynamic Instances

• These VMs get provisioned, only when all the Auto-Scaling Fixed VMs are turned ‘on’
• Again these VMs are provisioned but not turned ‘on’ until the need actually arises to turn them ‘on’
• Always provisioned in a batch of 2 or as per selected value during configuration.

Note: When configuring an Auto-Scaling Group, you can select the maximum number of dynamic VMs to be spawned i.e. you can specify that SimpliScale should not provision more virtual VMs than you specify, irrespective of the load on your application.

SimpliScale Thresholds

An UpScale threshold is a value you can set which your application (average across all the SimpliCompute VMs configured as a part of the Auto-Scaling Group) must pass and sustain, before the SimpliScale appliance decides to ‘turn-on’ the stand-by VMs.

A DownScale threshold is a value you can set which your application (average across all the SimpliCompute VMs configured as a part of the Auto-Scaling Group) must go below and sustain, before the SimpliScale appliance decides to start scaling down the provisioned VMs.

The threshold values considered are the average of the load spread across multiple SimpliCompute VMs i.e. the load on your application / Auto Scaling Group and not just one SimpliCompute VM.

SimpliScale Cooling Period

A typical observation in any application is that there could be some instantaneous peaks in the resource utilization and you may not want the system to react to such instantaneous conditions and turn-on / provision more VMs. To avoid such situations, SimpliScale allows you to determine the time duration over which you would want to average out the resource utilization, before it takes the actual decision to UpScale / DownScale. The default value is 5 minutes; however you have a choice to change this during the Auto-Scaling Group configuration.

You need to sign up for a SimpliCloud account to access SimpliScale services.

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