The first digits that are changed by LPAR is not to tell the operating system in which LPAR they run, but to make the "virtual" CPUIDs unique in the whole CEC. So, with SET CPUID on does not simulate an LPAR id.
-- Kris Buelens, IBM Belgium, VM customer support 2007/5/31, Don W. <[EMAIL PROTECTED]>:
I am somewhat confused concerning the implications of the new CPUID forma t on a z9 and setting the CPUID for a guest operating system either in the directory or by command. Do the first 2 digits of the 6 character cpuid i n the SET CPUID command actually simulate a virtual LPAR number? If so, wha t does the guest operating system think is its LPAR number? If I have defin ed 2 CPU's, and the first 2 digits in the CPUID is different for each of the m, does this indicate 2 different LPARS? Could someone point me to documentation that gives a good explanation? Is there any adverse implications for a guest operating system such as z/OS if the CPUID's are set as if it were a pre-z990 format? Thanks in advance for any clarificat ion.
