To reclaim space in a PDSE which is in linklist and if linklist is managed by LLA, the library will need to be removed from LLA management then a job to write one member to the PDSE should be run to initiate the reclaim process.
>From "Using Data Sets": PDSE space cannot be reclaimed immediately after a member is deleted or dated. If a deleted or updated member still has an existing connection from another task (or the input DCB from an ISPF edit session), the member space is not reclaimed until the connection is released and the data set is opened for output and that OPEN for OUTPUT is the only one on that system. Don Imbriale -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of GAVIN Darren * OPS EAS Sent: Wednesday, August 15, 2007 5:44 PM To: [email protected] Subject: Re: Refreshing PDSEs (was: linklisted load library failing) PDS's have the reclaiming space issue, PDSE's should not. With a PDSE when a member is deleted, or re-written to a larger block, the unused space it had occupied becomes available for immediate usage by the next write (STOR) activity. It maintains a list of free blocks in the directory, nothing, including a library in a linklist or a CICS region should be preventing that from being updated. If a system is not doing this it is likely because there is a user exit or SMS exit preventing it, or maybe forcing PDSE allocations to be a PDS's. The only time a PDSE might need a reorg itself, is when it has split the library's directory over all the extents it has allocated. This really only happens in a heavily used source library. As for IEBCOPY it needs a 3meg region size minimum when working with PDSE's, as opposed to the 450K size when working with PDS's Darren *********************************************************************** Bear Stearns is not responsible for any recommendation, solicitation, offer or agreement or any information about any transaction, customer account or account activity contained in this communication. *********************************************************************** ---------------------------------------------------------------------- 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
