VSAM Extent Consolidation is documented in the DFSMS Using Data Sets manual and is listed as a change for z/OS V1.5. According to apar OA7989 this feature could cause a problem when a VSAM dataset from z/OS V1.5 or up was shared with z/OS V1.4, which did not have the same support. The apar provided toleration support.
Unfortunately, the manual says the Extent Consolidation isn't supported for non-SMS datasets. Bummer. Ben Alford Enterprise Systems Programming University of Tennessee ---------------------------------------------------------------------- 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