John, basically you are limited to 4 gig (HI-A-RBA) for the size of a non-extended VSAM dataset. So depending on your VSAM define option you will get somewhere in the neighborhood of 6,000 cyls. In my quick test I got around 5,800 cyls.
Thanks.. Paul Feller AGT Mainframe Technical Support -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of John Dawes Sent: Monday, November 26, 2018 12:30 PM To: [email protected] Subject: SMS ALLOCATION OF VSAM DSN [EXTERNAL] G'Day, Could somebody please tell me what is the maximum number of cylinders that could be allocated for a SMS managed VSAM dsn (not VSAM EXTENDED ADDRESSABILITY). I have been able to allocate a dsn with 6,000 cylinders. However, due to a lack of disk space I couldn't continue with a higher allocation. Thanks. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- Please note: This message originated outside your organization. Please use caution when opening links or attachments. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
