And that's why I find the terminology a bit confusing....:-) A client
had a mixed mode LAPR (1 fractional CP and one IFL), and was puzzled as
to why their Oracle workload was experiencing such poor performance.
PERFKIT showed that almost all of the work was being dispatched on the
fractional CP with the IFL basically idle. The fix was to remove the CP
from the LPAR definition, making it, as Alan notes, it "Linux only".
IMHO, unless there is a clear cut need to combine CPs and IFLs in a
single LPAR(so, e.g., to run z/OS as a guest), it's best not to do so.
On 07/14/2010 01:37 PM, Alan Altmark wrote:
On Wed, 14 Jul 2010 13:06:22 -0400, Alan Altmark<[email protected]>
wrote:
o A "Linux only" mode LPAR is a term used by the HMC to refer to an LPAR
that has only IFLs, by defintion.
I am hoist on my own petard:
o A "Linux only" mode LPAR contains *either* CPs or IFLs.
Alan Altmark
z/VM Development
IBM Endicott
--
Dave Jones
V/Soft
www.vsoft-software.com
Houston, TX
281.578.7544
