> -----Original Message----- > From: IBM Mainframe Discussion List > [mailto:ibm-m...@bama.ua.edu] On Behalf Of Ron Hawkins > Sent: Thursday, March 04, 2010 1:06 PM > To: IBM-MAIN@bama.ua.edu > Subject: Re: Defrag > > Steve, > > That's not exactly correct. It's 16 extents for 59 volumes > and then you're > done. John's answer is the solution for your problem. ACC and > STOP-X37 users > have known this for 30 years. > > I have no idea what "reclaiming space in the VTOC" is. > > Ron >
Actually, one thing that I've done in selected cases is go to extended format sequential datasets. Magic! You can have more than 16 extents per volume. http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/DGT2D450/3.6.10.1 <quote> Extended-format sequential data sets have a maximum of 123 extents on each volume. (Sequential data sets have a maximum of 16 extents on each volume.) </quote> -- John McKown Systems Engineer IV IT Administrative Services Group HealthMarkets(r) 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(r) is the brand name for products underwritten and issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance Company(r), 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
