-----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Timothy Sipples Sent: Wednesday, July 18, 2007 1:13 AM To: [email protected] Subject: Re: PSI MIPS (was: Links to decent 'why the mainframe thrives' article)
<SNIP> Let me try to make it simple again. An IBM mainframe is, quite literal= ly, an entire data center in one box. <SNIP> Not any more (remember IBM v PSI). As of this past fall, when the contracts with FLEX were not renewed, it now takes a z/box, a raid unit, probably a tape unit or three, etc. While IBM was shipping the MP200, MP3000, R/390, and/or P/390 this was true. All the DASD in the box, with ethernet, etc. Same held true with the FLEX boxes and the "z/Laptop" systems. But now IBM has killed off those "drop and play" systems, and so this is no longer true. HOWEVER, the TCO and TCO (ownership, operation) IS known (regardless of physical config). The ROI can be plotted. There is very little HIDDEN costs (HCO) in a mature system such as the z/Architecture. Regards, Steve Thompson ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
