There is a plan to add ICF to single system.
Since both MVS and ICF LPARs reside on the same CPC, no ETR is needed,
as well as physical channels. ICPs can be used.
Q1. Can I use CF with PLEXCFG=MONOPLEX ?
Next questions assume PLEXCFG=MULTISYSTEM, but number of systems remains 1.
Q2. Do I have to define paths ? Of course I can do it using IXCnnn
structure, but see no reason to.
Q3. GRS. I cannot stay with GRS=NONE. However is there any advantage of
using STAR mode in such (single system) scenario ?
In fact, I did quick test, IPLed system in MULTISYSTEM mode, with
GRS=RING, and no paths defined (because I forgot). I observed noticeable
delays. Then I quickly defined ISGLOCK and switched to STAR mode. Delays
disappeared, but GRS task CPU consumpion increased.
I must confess: It is shared CPU. Two CF LPARs shared single ICF engine.
The problem with GRS CPU disappeared when I assigned 90% of ICF CPU (was
10%). DYNDISP is off (active wait is on).
Any comments, advices are welcome ?
Regards
--
Radoslaw Skorupka
Lodz, Poland
----------------------------------------------------------------------
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
