Hello everyone, I have an unknown that I have not been able to figure out or at least I don't know where to look. I have a user who is trying to define a vsam file using IDCAMS as follows:
DEFINE CLUSTER - ( NAME(BLAH.BLAH.BLAH) - LINEAR - REUSE - CYL(30) - SHAREOPTIONS(3 3) ) - DATA - ( NAME(BLAH.BLAH.BLAH.DATA) - ) - CATALOG(BLAH) The problem is, when I look at the dataset (which is SMS managed) it usually ends up being around 3 times larger than what the user requested. Of course the first place I looked was in the dataclas that this dataset gets assigned and the only thing that the dataclas specifies is a volume count of 1. There are no overrides anywhere else for primary or secondary space. Looking at the Access Method Services documentation, it states that you should not use the TRACKS or CYLINDERS parameters. If you use them for an SMS-managed data set, space is allocated on the volumes selected by SMS in units equivalent to the device default geometry. Could the reason that this dataset is being allocated larger than requested have to do with the fact that the sms volumes are mod 9 volumes? Btw, I tried allocating the dataset in Megabytes (30) and I got 43 cyl with 1 extent. I don't know what the conversion of megabytes to cylinders is but this still doesn't seem right. Regards, Gil. ---------------------------------------------------------------------- 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