Managing Linux and Virtual Machines?
deijmaster asks: "For a couple of months we have been hearing (as a major consulting firm) IBM people pushing the possibility of installing a Z/Linux VM setup at one of our biggest clients (financial). To a Linux user such as myself this sounds great, at first. Now, I am a bit reluctant when it comes to managing this kind of infrastructure, with little or no local expertise at IBM. Has anyone gone through a Z/Linux VM corporate installation and lived through the management of such a solution?"
"Has anyone gone through a Z/Linux VM corporate installation and lived through the management of such a solution?"
No.
Please tell me!
I work for a baby bell, IBM has been pushing Linux on the mainframe hard with us for a couple of years, I participated in the trials, and I had nothing but problems. Mainly because IBM over-promised the capacity of the mainframe. Execs up in the clouds saw it as a way to stop buying stand alone AIX machines for each application, and save serious cash. The only problem is that I don't care how "great" IBM claims a mainframe is, you can't replace 50 Unix machines with one 2-CPU frame, so when we load tested for peak loads, it bombed. Then, as a final insult, IBM attacked our source code and tried to pin the problems on that. Nothing like being the only developer defending yourself against 25 IBM eggheads on a conference call all blaming your code...which was vindicated in the end... I will say however that the manageability is very good, easy to create new images, bring them up and down, sharing binaries between images, etc..
10+ years of big-iron experience is not something you can get in a few weekends
:)
No... I suppose you can't. I figure it would take 10+ years, eh?