I can remember the day when a weekly IPL was almost mandatory. But that was long ago.
I believe the current technology is to schedule an IPL to implement z/os software changes. If there are no changes, then no IPL. You may run into misbehaving applications that suffer from storage creep, or you may need to reclaim ASID's marked unusable. I think we ran for over a year once with no noticeable issues. -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Tommy Tsui Sent: Wednesday, September 02, 2009 8:09 PM To: [email protected] Subject: How often IPL a production LPAR (any good practice) Hi all, Is there any concern if we didn't IPL a LPAR over three months. Is there any good practise to follow from IBM. They always replied LPAR never needs IPL because of 24 x 7. Any comment will be appreciated ---------------------------------------------------------------------- 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 NOTICE: This electronic mail message and any files transmitted with it are intended exclusively for the individual or entity to which it is addressed. The message, together with any attachment, may contain confidential and/or privileged information. Any unauthorized review, use, printing, saving, copying, disclosure or distribution is strictly prohibited. If you have received this message in error, please immediately advise the sender by reply email and delete all copies. ---------------------------------------------------------------------- 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

