30-08-2013, 03:38 PM
IMPROVING UTILIZATION OF INFRASTRUCTURE OF CLOUDS
IMPROVING UTILIZATION .ppt (Size: 870 KB / Downloads: 20)
Infrastructure clouds On-demand
If there are no more resources available for service requested, it has to reject the requests.
In this cases it is showing that its not really on-demand access.
Solution:
They have to over provision their infrastructure Ensure you have enough resources available (most of the time) for your user community
Back fill Virtual Machines (VM’s)
Generic virtual machines can be deployed on Virtual Machine Monitor nodes.
Must be configured by the Cloud Administrator.
Can be configured to perform any action.
ADVANTAGES
It offers a path to higher utilized clouds
It offers another type of resource lease, potentially cheaper than on-demand resource.
Backfill configurations
When deploying backfill solution on an IaaS cloud. The underlying physical IaaS Resources, the users of on-demand leases and the users of preemptible leases.
Appropriate backfill applications and workflows should be Identified.
If the IaaS VMM nodes have multiple cores, the IaaS cloud administrator must determine the granularity with which to deploy backfill VMs.
The IaaS cloud administrator must determine the approximate size of the backfill deployment, relative to the size of the IAAS cloud.
The IaaS cloud administrator must determine the backfill VM image deployment method. A fresh backfill VM image deployment method.
Nimbus Service
Nimbus service response time for on-demand user VM requests. This is the time from when the nimbus service first receives the requests until the service responds. It includes the time required to terminate backfill VMs, however, it does not include the time for a user VM to boot.