Christy, IF the LPAR is defined with spare processors (reserved), you will be able to vary the added processors online. Next though, you mentioned '2 CP engines', are they IFL's or General Purpose processors? Mixing the two? We only have a z9 and z/VM 5.4. Never tried it. Doug ----- Original Message ----- From: Christy Brogan To: [email protected] Sent: Tuesday, January 05, 2010 12:55 Subject: Re: 2 to 3 IFLs
Side note...... We are adding 2 CP engines to our z10 next week. I *believe* we can vary these engines onto VM without an IPL. Someone very knowledgeable told me he was 99% sure that would work. :-) Anyone out there know differently? (We currently are using 6 of the existing engines on the box. Our hardware folks will 'activate' 2 more....) Alan Altmark---01/05/2010 10:33:48 AM---On Tuesday, 01/05/2010 at 12:25 EST, "Harris, Nick J." <[email protected]> wrote: From: Alan Altmark/Endicott/i...@ibmus To: [email protected] Date: 01/05/2010 10:33 AM Subject: Re: 2 to 3 IFLs Sent by: The IBM z/VM Operating System <[email protected]> ------------------------------------------------------------------------------ On Tuesday, 01/05/2010 at 12:25 EST, "Harris, Nick J." <[email protected]> wrote: > According to our performance product we do NOT need an additional IFL at this > time but it was included as part of the z10 upgrade so I wanted to utilize it. It will be utilized even though you do not define three *virtual* CPUs. CP will be able to run three virtual CPUs at once instead of only two. With virtual 2-ways, you ensure that no single guest is using all three CPUs at the same time. Alan Altmark z/VM Development IBM Endicott
