IBM Mainframe Discussion List <IBM-MAIN@BAMA.UA.EDU> wrote on 06/07/2005 
09:11:25 AM:

> >
> > UCBs use E/SQA. They will reside above or below the line according to
> > the device definition in HCD.
> >
> > Peter Hunkeler
> > Senior IT Specialist, IBM zSeries Technical Sales Support, Switzerland

> E/SQA? I thought they were nucleus resident? Well, "back in the day" at
> least. I wonder because I did not increase the SQA= parameter in
> IEASYSnn when I added all the Shark devices. Or is SQA automagically
> increased?

  UCBs were nucleus resident back when they were defined by IOGEN
and later MVSCP.  When defined in an IODF, they are in SQA/ESQA.

  Based on the contents of the IODF, IPL processing tries to estimate
the SQA/ESQA requirements for UCBs and some other I/O related control
blocks, and adds this to the initial SQA/ESQA size (the default size 
defined in IEAIPL04 plus the INITSQA in LOADxx, if specified).  UCBs 
get built before the SQA= parameter in IEASYSxx is processed (since we 
need the UCBs for devices containing the data sets in the
PARMLIB concatenation in order to open the PARMLIB concatenation). 

Jim Mulder   z/OS System Test   IBM Corp.  Poughkeepsie,  NY

----------------------------------------------------------------------
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

Reply via email to