Mark, I suppose that you have already got the answers that you wanted, This is just an alternate idea.
When we initialized our Shark array's in 2004, we create a few with 1113 cylinders, a few 10017 and most 3339 cylinders. The last two we installed, we had mainly 32760 Cylinder volumes, about 10 10017's and 2 3339's , 1 1113 and a 848 which we use to contain only the master catalog, and nothing else. The logic is this... In SMS allocation of small datasets goes to the M1's medium to the M3/M9's and The massive VSAMS / IAM's to M27's We have never had a major problem where our VTOCs were full before the volumes, and this is the sizes... M1 = INDEX(0,1,1) VTOC(0,2,15) M3 = INDEX(0,1,7) VTOC(0,8,75) M9 = INDEX(0,1,7) VTOC(0,9,75) M27 = INDEX(0,1,4) VTOC(0,5,75) Regards Herbie Elavon Financial Services Limited Registered in Ireland: Number 418442 Registered Office: Block E, 1st Floor, Cherrywood Business Park, Loughlinstown, Co. Dublin, Ireland Directors: Robert Abele (USA), John Collins, Terrance Dolan (USA), Pamela Joseph (USA), Declan Lynch, John McNally, Malcolm Towlson Elavon Financial Services Limited, trading as Elavon, is regulated by the Financial Regulator ---------------------------------------------------------------------- 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
