Migratory Assets

          Today many organizations use one or more public clouds to meet the demand for the compute resource by its employees. A large number of these requests are fine grained where customers request a handful of virtual machines for their private use. Usually not more than twenty percent of the customers have demands that are very large ranging to about a hundred or more virtual machines. 

 There are a few challenges in servicing these demands. First, the virtual machines for the individual customers are sticky. Customers don’t usually release their resource and even identify it by their name or ip address for their day to day work.  They host applications, services and automations on their virtual machines and often cannot let go of their virtual machine unless files and programs have a migration path to another compute resource. Typically they do not take this step to create regular backups and keep moving the resource. While container platforms for Platform-as-a-service (PaaS) have enabled software to be deployed without any recognition of the host and frequently rotated from one host to another, the end users adoption of PaaS platform depend on the production readiness of the applications and services The force for PaaS adoption has made little or no changes to the use and proliferation of virtual machines by individual users. Therefore the second criteria is that the individual users habits don’t change.

Consequent to these two factors, the cloud services provider can package services such as additional storage, regular backup schedule, patching schedule, system management, securing and billing at the time of request for each asset. However such services depend on the cloud where the services are requested. For private cloud a lot of the service is in-house adding to the costs even if the inventory is free.

I describe that a significant percentage of the end users do not care about where the assets come from.  Consequently we can move assets between public cloud to public cloud or even public cloud to private cloud or even private to private cloud while letting the users access their resources by name and in some cases by the same IP.

#codingexercise
Find the maximum of a subsequence of an array of integers such that no two elements are adjacent.
int GetMaxSum(List<int> A)
{
if (A == null || A.Count == 0) return 0;
int inclusive = A[0];
int exclusive = 0;
for (int i = 1; i < A.Count; i++)
{
var max = Math.max(inclusive, exclusive);
inclusive  = exclusive + A[i];
exclusive = max;
}
return Math.max(inclusive, exclusive);
}
Courtesy: geeksforgeeks