I'm not sure on what you say about comparing the names.
But, when you use HCD to build and download an IOCDS (IOCP) to
the machine, you have to select which CPC definition to build /
download. The different CPC definitions in the IODF would have
different I/O devices defined to them. CPC1 would only get that portion
of the I/O definition that is for CPC1, CPC2 would only get the portion
that is for CPC2, etc. Each CPC only knows about the subset of I/O
devices that are appropriate for (defined for) use on that CPC.
Presumably the OS config that you use for each LPAR is the
appropriate one for the system running in that LPAR on that CPC (with
the appropriate I/O devices for use on that CPC). I would suspect that
the systems run in the "same name" LPARS on different CPCs use different
OS config definitions.
David Mueller | Consultant | DMS/EITS - BearingPoint
Phone: 850-414-9134 (Rm 107 SRC) | Fax: 850-921-8343
E-mail: [EMAIL PROTECTED]
-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of R.S.
Sent: Friday, December 23, 2005 6:31 AM
To: [email protected]
Subject: Re: Basic IODF question
I'll try to rephrase my doubt again:
IODF constains definition fo three CPCs: CPC1 CPC2 and CPC3.
All three CPCs are same type (i.e. 2064-1C6), but each of them has
different I/O devices connected. To be more complex, Each CPC have
LPAR1, and LPAR2 defined. Note, the same names of LPARs.
During IPL IODF is read. Two things are important: OS config used (we
specify it in LOADxx), and proper LPAR name *on proper CPC*. MVS "knows"
what OS config to use, knows on what LPAR it runs but also has to
determine what CPC is used and read proper "section" of IODF.
IMHO it compares CPC name which is arbitrary assigned during HCD
creation. The name resides (to my belief) in HSA so MVS can learn the
name and make good choice when reading IODF.
It must be CPC name since the parameter is mandatory and unique.
It seems I answered to myself...
I 'm sorry for the confusion.
--
Radoslaw Skorupka
Lodz, Poland
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