A dataset is pre-allocated using the TSO allocate command using a Cylinders with primary allocation of 3333 cylinders and 333 secondary space with a list of volumes. When writing into the dataset in a separate step, I would expect that on the second volume, A primary allocation space will be taken. Our experience shows that from the second volume in the volume-list, the space will be allocated in the secondary space units. Why is that so? a reference to the manual will be helpful.
Itschak ---------------------------------------------------------------------- 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

