-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 I've only crossed into the 'mainframe', as in one big iron to rule them all, twice in my short work life; first on CGD and secondly at ITIJ.
Both of the times there where some kind of "Mordor" guardian, that rule the datacenter 'scene' as master and having the final word on systems. Also, these people were some kind of 'gods' to the system admins there, which gave them high valuation in the institutions. In CGD the mainframe scene is the larger that I've seen, where the core business applications are into big bulk machines, watched carefully by IBM people (very brazilian, I must say). At ITIJ the core was not mainframe, but there were some big applications there, which I usually call legacy. This 'legacy', that happens in both places is threatened by the new moves, the distributed scene. Since 2005, that the SaaS (software as a service) is around that I've witness the constant attacks on 'Mordor' gates. With virtual systems and applications, the ubiquity has reached datacenter, that's clear for me. But now the service is getting into hardware - HaaS, hardware as a service - where the virtualization of machines is the new scene; distributing process, storage, cpu, etc. Nowadays we can have everything as a service, but where's the web2.0 effect in datacenters, how can we change the old datacenters philosophy ? First, the applications need to be modularized, stripping them into MVC and three tier (data,business,presentation), here the ESB/EAI systems could help a lot. Second, strip process into virtual machines and use remote storages, reaching close to hardware ubiquity. Third, strip those virtual CPU and storages into distributed solutions. This can shift the datacenters, which are in 0.5 versions, into 2.0 worlds, where there can be no performance bottlenecks and no single of point of failure. Where the applications are a commodity and the hardware is ubiquitous. But we know how the business people think; and "no one ever got fired for buying IBM", remember ? So the shift could last more years that usual. - -- //VD -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (GNU/Linux) iD8DBQFHKx9DzLeQsaqPtNIRCvUqAJ9eLE/SXEVqXhWnLHoUI7XC573KxgCfTc2d 2eqBvXUtak8KKu1JHwGHeOM= =KBXv -----END PGP SIGNATURE----- _______________________________________________ tce mailing list [email protected] http://lists.paradigma.pt/mailman/listinfo/tce
