Interesting thread. Thanks. Cathy McBride Manager, Mainframe/Midrange Support Kable News Company, Inc (815) 734-5905 [EMAIL PROTECTED] We're still in this together!
-----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] Behalf Of Barton Robinson Sent: Monday, October 20, 2008 4:45 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: Cost accounting for Linux guest running under z/VM The best model is one I heard last week at the ibm conference. One large "well known" installation charges only for prime shift, with 3 different rates based on types of service. All charges are based on resource consumption. With the usage charges and prime shift only charges, users are convinced to move some "batch operations" off shift where resources are plentiful and "free". This encourages high CPU activites that can be off shift to be moved off shift. The three different service rates relate to 7x24 support, prime shift support, and a "best effort". Installations not charging for resource consumption in a mainframe environment tell their customers that tuning is not important, and neither is workload planning. This is good for IBM's profit as it increases the IFL requirement, but will end up with applications consuming more resource and can make other platforms much more attractive. One performance person is worth their power consumption in IFLs so to speak.... Most important is to understand your objective: chargeback and recover costs, or manage costs with chargeback and minimize resource requirements. Several installations have charged "by server", and quickly found users will abuse the system unless encouraged otherwise. Juarez, David T. wrote: > We are in the process of getting ready to add production Linux guest and we > need to know how you are charging back the customer for running Linux under z/VM. We currently charge a fixed fee per month for small, medium and large based on the size of the individual server's memory, cpu, and network connections. Any ideas would be greatly appreciated. Thanks. > > > David Juárez > > Department of Veterans Affairs > > IT Specialist - z/OS and z/VM Systems Programmer > > 512-326-6116 > >
