In my JCLs I use the following: // SPACE=(CYL,(15,15),RLSE), // VOL=(,,,3),
The Job will look for 15 cylinders to start with and then grab 15 more if needed up to 15 extents. The VOL statement allows me to grab 15 more extents of 15 cylinders to over 3 disks, for a total of 45 extents. The 3 can be up to 15, giving 15 * 15 = 225 extents. This also is good as one disk pack may have only room for 4 extents but will try looking at 2 other packs for the required space. "Take my advice. I'm not using it." :-) TImOTHY Hillock -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Ted MacNEIL Sent: Wednesday, April 08, 2009 12:25 PM To: [email protected] Subject: Re: Secondary space allocation >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?? PS/PO total extents allowed, per volume, 16. In theory, you could have 16 extents, even without a secondary specified. VSAM/Extended Function total extents allowed, per volume, 123. Why is it scary? In general, I'd rather have multiple extents/volumes, than abend. - Too busy driving to stop for gas! ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
