Dave, I was unclear. The process is a dasd volume reorg to maximize contiguous free extents. That process, which some products call a sweeper or compaction, moved a dataset that was opened by PSF but not enqueued. Quite right that an approach is to exclude them from the dasd reorg. In no way is the PDSE being compressed, but combining multiple extents into one for sure. David
-----Original Message----- From: Jousma, David <[email protected]> To: IBM-MAIN <[email protected]> Sent: Wed, Oct 23, 2019 02:41 PM Subject: Re: PDS to PDSE conversion issues David, I guess I might have a dumb question, but if the datasets that PSF was using were PDSE, then why is your re-org process trying to re-org a PDSE? Seems like maybe the selection process of what gets re-org'd should be tweaked? _____________________________________________________________________________________________________ Dave Jousma AVP | Manager, Systems Engineering Fifth Third Bank | 1830 East Paris Ave, SE | MD RSCB2H | Grand Rapids, MI 49546 616.653.8429 | fax: 616.653.2717 -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of David Purdy Sent: Wednesday, October 23, 2019 8:34 AM To: [email protected] Subject: Re: PDS to PDSE conversion issues **CAUTION EXTERNAL EMAIL** **DO NOT open attachments or click on links from unknown senders or unexpected emails** This is within one sysplex. We're asking ourselves the same questions. Dave, I will let you know the quite interesting details when the drill down is complete. David -----Original Message----- From: Gibney, Dave <[email protected]> To: IBM-MAIN <[email protected]> Sent: Wed, Oct 23, 2019 12:01 AM Subject: Re: PDS to PDSE conversion issues Why would this change, between PDS and PDS/E? Unless this is yet another encounter with the pitfall os trying to share PDE/E outside Sysplex. > -----Original Message----- > From: IBM Mainframe Discussion List <[email protected]> On > Behalf Of David Purdy > Sent: Tuesday, October 22, 2019 2:20 PM > To: [email protected] > Subject: Re: PDS to PDSE conversion issues > > I recently converted several PSF libraries, resulting in a problem if > a dasd reorg moved the dataset while PSF tasks are up. PSF does not > issue an enqueue but has the dataset open. The volume reorg only > checks for enqueue before moving the dataset. Short term, we configed > the reorg to skip PSF datasets. Long term, looking at setting DSI and > setting a dataset close flag in a PSF exit. Or just taking down > printers before reorg in the wee morning hours. > David > -----Original Message----- > From: Toby Seguin <[email protected]> > To: IBM-MAIN <[email protected]> > Sent: Tue, Oct 22, 2019 03:06 PM > Subject: PDS to PDSE conversion issues > > > We are currently thinking about converting many of our PDS libraries to PDSE. > While researching the possible pitfalls to a PDSE one that concerned > me the most is "Blocked Workload" that Thomas Reed discussed at SHARE in 2018. > > This situation is said to occur when CPU is near 100% (pretty common > event from time to time here) so it certainly caught my attention. > Does anyone have any experience with Blocked Workload? Anything else I > should be looking closer at? > > Thanks and Regards, > > Toby Seguin > > ---------------------------------------------------------------------- > 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 ---------------------------------------------------------------------- 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 **CAUTION EXTERNAL EMAIL** **DO NOT open attachments or click on links from unknown senders or unexpected emails** This e-mail transmission contains information that is confidential and may be privileged. It is intended only for the addressee(s) named above. If you receive this e-mail in error, please do not read, copy or disseminate it in any manner. If you are not the intended recipient, any disclosure, copying, distribution or use of the contents of this information is prohibited. Please reply to the message immediately by informing the sender that the message was misdirected. After replying, please erase it from your computer system. Your assistance in correcting this error is appreciated. ---------------------------------------------------------------------- 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
