Will Cloud Computing lead to several own goals?

The new Premiership football season is well under way and every manager is hoping his star talent and ‘squad strength’ will see his team through the late autumn sun to the dark cloudy evenings of winter.

The new Premiership football season is well under way and every manager is hoping his star talent and ‘squad strength’ will see his team through the late autumn sun to the dark cloudy evenings of winter.  There will be huge disappointments, but a new season, like the latest technology of Cloud Computing, promises much.

One tactic to managerial success is to have the maximum resources available. But in IT, like football, this costs money.  Virtualization is driving hardware costs down, but cloud computing, which promises almost infinitely low-cost resources, could also mean more own goals.

The Cloud is simply a virtual datacentre shared (multi-tenanted) by several organizations. The logic is simple - why pay for 100% of a machine which runs only 20% of the time? A fully virtualized application moves resources onto and off The Cloud rapidly. Imagine watching Match Of The Day while being able to substitute virtual players from your favourite X-Box game.

The reality of such ‘rapid substitutions’ is messy. Those promised cost benefits require more IT management. Virtual appliances may only be data files, but large and active ones, which are paged frantically.

Some applications, such as databases, are so memory-intensive that a move to The Cloud can kill performance. The Cloud changes where applications store data, affecting both I/O and CPU contention. The overheads needed by virtual appliance cocoons or the Cloud Operating system impact user response times, directly affecting application performance.

Today’s mere hot spot analysis of traffic volumes will not be enough. All transactions are not equal. Leading to a ‘Superleague’ of corporate transactions, too important to be ‘demoted’ to the Cloud for fear their performance cannot be guaranteed. The real solution needs to correlate Cloud events, like virtual appliance migrations, with business service levels.

Challenging or impossible? Transaction Performance Management (TPM) solutions are evolving to solve just such a challenge.

TPM tunes the application, appliances and the Cloud OS, matching virtual appliances to the correct storage devices, based on patterns of storage access and by business priority. This allows prioritization and charge back for higher value transactions.  Such advanced TPM delivers:
1) Parameters for optimized virtual application performance
2) Guidance to the Cloud Operating System (OS) on virtual appliance invocations
3) Guidance to the Cloud OS on the dynamic allocation of application workloads
4) Guidance to the Cloud OS on virtual appliance scheduling to avoid resource contentions

The economic benefits of the Cloud are irresistible. But no CIO would trade business-critical transactions failure for even a tenfold cost saving. Losing a match, albeit with bargain strikers, is unacceptable.

The IT industry’s momentum behind the Cloud, means it cannot fail, and is therefore just a Cloud-ready TPM solution away from deployment in production.

  • Precise Software has developed Transaction Performance Management software

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