> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:[EMAIL PROTECTED] On Behalf Of R.S. > Sent: Tuesday, April 25, 2006 3:04 PM > To: IBM-MAIN@BAMA.UA.EDU > Subject: Re: Adding LPARs without POR >
<snip> > > Why ? > IMHO it *depends*. Is it so common to run few z/OS LPARs and hundreds > Linux images ? I know datacenters running several LPARs (monoplexes, > completely separated systems), *few* Linux images ...and bunch of > Windows servers<g> > One of the datacenters is using Linux under IFL. 2-4 images. Is it > really cost effective to buy z/VM for this poor z/800 machine ? > Is it really needed at all ? > > Just my $0.02 > -- > Radoslaw Skorupka I do agree that the configuration should be based on the need of the company. I guess that I was speaking generically without stating some of my assumptions. In the case of a very few LPARs (less than 5 or 6?), then z/VM is likely to be overkill. But I think that the original person was indicating that they were going to have a LOT of Linux images, not just a few. For me, in most cases, I would likely suggest doing z/OS in LPARs (since PR/SM is "free" (gratis/bundled) and z/VM costs more per CPU to license on a general CPU than on an IFL (IIRC)). I would assign all the IFLs to a single LPAR running z/VM. Again, most cases I envision would likely have a fair number of Linux images running due to the "one function, one image" that seems to be "in vogue" with even Linux people. There is even a "push" to have multiple z/OS LPARs here to "separate activity for better control." <bronx cheer> -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology This message (including any attachments) contains confidential information intended for a specific individual and purpose, and its content is protected by law. If you are not the intended recipient, you should delete this message and are hereby notified that any disclosure, copying, or distribution of this transmission, or taking any action based on it, is strictly prohibited. ---------------------------------------------------------------------- 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
