In case you have not seen the Fit for Purpose materials from your friendly IBM site or local team calling on you enterprise, there are a number tools available to help you determine 'best fit' for servers and workload. Based on insight from some external studies, they focus on workloads related to business intelligence and analytics, Web and SOA, traditional transaction, and suites like ERP, CRM, SCM etc. Best Fit has been around a long time with concepts like Balanced Systems (a nod to Ray Wicks et al), 'loved ones' ( and a tip of the hat to Seibo Freisenborg), and constant fiddling with levels and amounts of cache to keep data flowing to the big engines crunching away ---even when those engines where what we would now consider little guys.
Yep, some workloads need more or less qualities of service (QoS), or non functional requirements like availability, security, performance and so on. And some are more compute or I/O intensive, shorter or longer transactions, spread across infrastructures or limited to running on isolated or even specialized processors. This all makes sense to the technical mind, but it is a good idea to remember the power of inertia, decisions already made, and what one buddy called Fit for Politics. It is tough to make changes when decisions are often not re-examined or justified -- they get cast in stone or aligned with factions and can be perceived to be linked to career paths even. Don't forget that in you consolidation or movement plans for the z196 and zEnterprise we have talked about! And don't forget that part of the power of being able to QUICKLY move workloads across platforms in the new complex is that you can quickly try things out and over time learn to trust the idea of decisions not caste in stone, maybe not doing lots of analysis ahead of time and just freaking try it!! (Hey, there's an idea....)
On another 'how things have changed' I cleaned my office recently and found I tossed both round and square backup discs galore. Between more reliable cheaper drives, and backup schemes offsite I realized it had been awhile since I did that hours long data backup and labeling fun time. The other thing I found was a folder of magnetic shapes representing e-business server types. Ten years ago or so when the idea of creating these e-business infrastructures with customers was new I'd find a magnetic whiteboard (easier than you think for big companies) and slap these blocks on the wall with new names like web servers, application servers, portal, gateways for voice or files or B2B....and we would plan out the new world of opening up the enterprise to partners, suppliers and customers. Those concepts and server types are common place now, so I felt pretty secure in setting them free too.
...but maybe I should think about making a new set of magnet blocks with lines of business or service types, with event categories and collaboration options as discussions for the next wave of Smart systems start getting built?