We're not using DSNTYPE=LARGE yet but IIRC, it allows you to allocate a dataset larger than 65535 tracks on a single volume.
I thought it was stated earlier that the requestor was trying to allocate a 5000 cylinder dataset and had 3 mod-3 devices - if I've remembered that details correctly, DSNTYPE=LARGE is not going to help him. He needs to specify a dataclass which has the Extended Format attribute turned on, allow multi-volume (either in the JCL or the dataclas), and then specify an appropriate primary & 2ndary allocation. If SMS is not set up to allow space reduction or he has a product like StopX-37 which can reduce space, a primary of 5000 cylinders is never going to work with his mod-3's. HTH's - ddk ************************************************************************************** This e-mail message and all attachments transmitted with it may contain legally privileged and/or confidential information intended solely for the use of the addressee(s). If the reader of this message is not the intended recipient, you are hereby notified that any reading, dissemination, distribution, copying, forwarding or other use of this message or its attachments is strictly prohibited. If you have received this message in error, please notify the sender immediately and delete this message and all copies and backups thereof. Thank you. ************************************************************************************** ---------------------------------------------------------------------- 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
