Lizette is correct here. The EXPDT=90ddd is catalog-days control, meaning the tape is kept a minimum of ddd days and then is placed under catalog-control. It is recommended to be used in place of the older 99000 catalog-control for long-running jobs (jobs that run more then 24-hours) because unlike dasd datasets, tape datasets are still not catalog'ed until step-termination (or CLOSE processing if FREE=CLOSE was specified of course).
So, if you create tape datasets in long-running jobs that keep the file open for long periods of time (days/weeks) and you want to put these under catalog-control it is strongly recommended you use EXPDT=90ddd. Russell Witt CA-1 L2 Support Manager -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] Behalf Of Lizette Koehler Sent: Tuesday, August 07, 2007 12:04 PM To: [email protected] Subject: Re: S637-58 on TAPE GDG According to CA1 L1, the 90008 says "They can change the EXPDT value in the JCL to be 90008 to keep the tape for 8 days, and then if the data set is cataloged we will convert to catalog control." The 99DDD has a different meaning. But to place the dataset under CATALOG CONTROL once it is cataloged means I need to use 90DDD. So, from CA1 my understanding is if I have a long running job that is creating a tape dataset, and it is more than 2 days, I need to use 90DDD in order for CA1 not to do anything with it (like Scratch or expire) until DDD days have passed. Then if the dataset is in the OS Catalog, CA1 will then convert it to catalog control. Lizette ---------------------------------------------------------------------- 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
