In short, an IPL is easier than develping a program that installs SVCs dynamically, load LPA modules, etc. some products does that. IBM's IMS for example.
ITschak On Mon, Sep 16, 2019 at 10:49 PM Lennie Dymoke-Bradshaw < [email protected]> wrote: > Peter, > > I think it depends entirely on how the product is installed. The various > methods required might include, > > 1. LPA modules > 2. Nucleus extensions > 3. SVC(s) > 4. New APF libraries > 5. New linklist libraries > 6. PPT modifications > 7. Front-ending of existing SVCs > 8. Console definition modifictions > 9. Sub-system defintions > > .......and many other types of changes to system libraries or definitions. > > Each site will have standards about whether they allow such changes > in-flight, or require an IPL. There are benefits with the IPL method. One > is that you prove the system configuration. > > You might also wish to consider that installing on one system is fine, but > then the product may need to be activated on another LPAR in the Sysplex. > > Often however, the system initialisation changes can be mode for the first > install and then library updates can be performed for an update. > > Hope that helps. > > Lennie Dymoke-Bradshaw | Security Lead | RSM Partners Ltd > > Web: www.rsmpartners.com > ‘Dance like no one is watching. Encrypt like everyone is.’ > > -----Original Message----- > From: IBM Mainframe Discussion List <[email protected]> On Behalf > Of Peter > Sent: 16 September 2019 18:54 > To: [email protected] > Subject: [IBM-MAIN] LPA - IPL or dynamic > > Hi > > I have seen few vendors suggesting an IPL as requisite if you are doing > the product install for first time and If it's upgrade then it's not > required. > > I am ignorant here. How does this makes a difference ? Why a dynamic > update won't work if it's a first install ? > > Programmatically how does it work from zOS perspective. > > Apology if this question was already discussed here if so please point me > to the discussion link . > > Regards > Peter > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email > to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > -- ITschak Mugzach *|** IronSphere Platform* *|* *Information Security Contiguous Monitoring for Legacy **| * ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
