Hi Larry, In respect of you query "I always thought when you gave a secondary space allocation that it went to 16 extents(if needed), but I am reading that it now goes to 123. Is this true?? We are a non sms shop. One more question, does the system check for all secondary allocations or will it work 1 by 1 as needed?"
The answer is that it depends. The JCL Reference states "The system can allocate up to 123 extents for a data set on a volume if it is a PDSE, an HFS data set, an extended format data set, or a VSAM data set in an ICF catalog." However traditional sequential and partitioned data sets are still limited to 16 extents per volume. Note that there is a significant difference between secondary request and an extent. If I code SPACE=(CYL,(10,5)) I may get my secondary request in one 5 cylinder extent if it is available. However I could just as easily get my 5 cylinders as five 1 cylinder extents on a fragmented pack. Without additional volumes indicated this could lead to an unexpected B37. Kind regards - Terry Terry Sambrooks Director KMS-IT Limited 228 Abbeydale Road South Dore, Sheffield, S17 3LA, UK Tel: +44 (0)114 262 0933 WEB: www.legac-e.co.uk Company Reg: 3767263 at the above address All outgoing E-mail is scanned, but it remains the recipient's responsibility to ensure their system is protected from spy-ware, trojans, viruses, and worms. ---------------------------------------------------------------------- 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
