Mark - Something you should take into consideration about going the LLA-route with your large load library is how often the library is updated. Putting the library in LLA Freeze mode brings you directory search performance benefits, but can lead to problems when members are updated. This is the "Dynamic" part of the Dynamic BLDL facility. On the other hand, if you use LLA NoFreeze mode you lose much of the performance benefit you seek.
Is there a particular reason you're being asked to remove PDSMAN? Jeffrey King CA PDSMAN Principle Software Engineer Columbus, Ohio USA tel: +1 614 785 2743 or x62743 jeffrey.k...@ca.com -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of McKown, John Sent: Thursday, May 21, 2009 8:53 AM To: IBM-MAIN@bama.ua.edu Subject: Re: PDSMAN Replacement > -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:ibm-m...@bama.ua.edu] On Behalf Of Mark Wilson > Sent: Thursday, May 21, 2009 1:30 AM > To: IBM-MAIN@bama.ua.edu > Subject: PDSMAN Replacement > > Hi, > > I have the task of removing CA-PDSMAN from two of our systems. > > We currently use the following functions: > > * PDSMAN Library Space Reuse facility > * Dynamic BLDL Facility > * Remote Data Compare > > I believe I can convert my PDS¹s to PDS/e¹s to negate the > need for the Space > Reuse facility. Likely true. However, remember that a PDSE cannot be shared except within a single SYSPLEX. If you try to share it across multiple SYSPLEXes or MONOPLEXes, then "results are undefined" and likely to be terrible (corrupted PDSEs). > > The Dynamic BLDL function causes me a little concern. I have > inherited a > situation where we have one massive load library that > contains all batch & > online application programs. All batch jobs and online > systems have either a > JOBLIB or STEPLIB DD Statement that references this one > library. Many years > ago (well before my time) the techies turned off this PDSMAN > feature and had > very severe system performance issues for online and batch > applications, > resulting in this feature being re-enabled. I was think of > splitting the > library, perhaps by application to reduce the search time for none > application code. Use LLA. It can be used to buffer any load library, not just the LINKLIST. ./ ADD NAME=CSVLLAnn LIBRARIES(-LNKLST-, NPHPN.PGM.LOADLIB, DCHPN.ENDEVOR.EZTPLUS.LOADLIB) FREEZE(-LNKLST-, NPHPN.PGM.LOADLIB, DCHPN.ENDEVOR.EZTPLUS.LOADLIB) ./ENDUP is an example. > > The remote Data Compare is used in batch to compare PDS¹s on the QA & > Production systems. A checksum is generated for each PDS and > then compared. > If a difference is found a WTO is posted (picked up by > automation) that > triggers a check of the libraries. I can't help with this one. > > Does anyone have any experience of replacing these functions > and have any > ideas of how to replace and any advice on the process? > > Regards > > Mark -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets® 9151 Boulevard 26 . N. Richland Hills . TX 76010 (817) 255-3225 phone . (817)-961-6183 cell john.mck...@healthmarkets.com . www.HealthMarkets.com Confidentiality Notice: This e-mail message may contain confidential or proprietary information. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. HealthMarkets® is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company®, Mid-West National Life Insurance Company of TennesseeSM and The MEGA Life and Health Insurance Company.SM ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
