Chokalingam I'm going to try guessing what your *real* question might be for which there is a very simple answer.
This is a bit like the Irishman who when asked the way, answered that if he wanted to go there he wouldn't be starting from here, so he wouldn't! It's as if he had suggested from where you really should be starting, so you should! Let us say you had stated that you were relatively new to z/OS - and possibly other IBM operating systems, that you had noticed that there tended to be three characters, usually letters, that were always associated with a particular product and that these three characters were used in the data set names which were associated with a product, especially the data sets, often partitioned data sets, "libraries", which were created using SMP, these days SMP/E. Your question now could be to ask where you might find a table where the left column was the three characters and the next column was the common name for the product. Using your example, you would be looking for a row in the table with "IGY" in the left column and "Enterprise COBOL" in the next column. Step forward the z/OS MVS System Messages Volume 1 (ABA - AOM), SA22- 7631-21, "Message directory section": http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/IEA2M1B0/1.3 Actually the row corresponding you your example is the following: <quote> IGY - VS COBOL II </quote> In fact there is a third column which is the identification of the manual containing the messages corresponding to the three characters. - Note that "SYS1" just happens to be the prefix selected in the 1960s as a way to distinguish IBM-inspired data sets from data sets which are not IBM- inspired - or I'll accept any other means to define what a SYS1 prefix is all about if it holds water. Note also that the "S" in your example, SYS1.SIGY*, is a convention related to SMP. In order to try to be more precise about the "S", I waded into water that caused me to get rather out of my depth. That'll teach me to try to provide comprehensive answers when I know only half or so of the story! Perhaps someone still reading can guide all of us who might be interested in unravelling "Software Delivery Standard Packaging Rules for z/OS-Based Products", SC23-3695-10, on the SMP/E bookshelf where, in the chapter "Naming Conventions", section "Library Names", I found both a reference to the three characters[1] and a reference to that initial character, "S" in your example as "the letter for a distribution library or a target library". Chris Mason [1] <quote> Component Identifier (COMP ID) In the SMP/E environment, code for one product must be uniquely distinguishable from code for other products. The best way to keep your code unique is to start the names of all the elements and load modules for that product with a single unique 3-character identifier. This identifier is called a component code. IBM is offering to register the component codes for your products. The registration ensures that your component code is not used by another products that are registered. Send a note to [email protected] or ask your IBM representative to contact IBM Poughkeepsie, Department FPLA. </quote> On Tue, 1 Mar 2011 18:13:29 +0530, Chokalingam Thangavelu <[email protected]> wrote: >Hi, > >Please let me know if there is any document that describes SYS1 datasets >and its associated product names. > >For example SYS1.SIGY* datasets are related to Enterprise Cobol. > >Regards, >Chokalingam Thangavelu ---------------------------------------------------------------------- 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

