John, You can look at an old informational apar II10372 in setting up your basic sysplex. There are advantages and disadvantages to both. A parallel sysplex will definitely take the load off of your other lpars by loading the LOGR structure in memory. You also have the ability to run true VSAM record lock in a parallel sysplex using SMSVSAM. On the other hand if you are cutting an lpar to run your CFL, it will take a good portion of the machine regardless of whether it is doing anything. z/OS 1.9 will allow for SMF writes to the logger which will save your lpars cycles by creating a structure for the logstream.
Good luck. Ernie. "McKown, John" <[EMAIL PROTECTED]> wrote in message news: <[EMAIL PROTECTED]>... > > -----Original Message----- > > From: IBM Mainframe Discussion List > > [mailto:[EMAIL PROTECTED] On Behalf Of Matthew Stitt > > Sent: Friday, December 14, 2007 2:16 PM > > To: [email protected] > > Subject: Re: basic sysplex information? > > > > > > You really do not need a CFL engine. A regular CP will work. > > And I am sure > > you can now set the CF up to utilize the CP only when it has > > work to do. > > This is the way I run my CF, but I have not tried the dynamic > > CP usage part yet. > > > > For a basic sysplex, all you really need are the PATHIN and PATHOUT > > definitions on each LPAR which can utilize your existing CTC device > > definitions. I would not use the same ones VTAM are using. GRS will > > automatically switch to the sysplex paths. > > > > Thanks for the information. I am still trying to convince the PTBs that > using WLM to control CPU consumption by area is superior to splitting > the single system into multiples so that it can be done via PR/SM > weights. There are other pluses to splitting, such as a better testing > environment for system level changes, but CPU management is not one of > them. ---------------------------------------------------------------------- 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
