Juan, To allocate a 10,000 cylinder data set for SMF use, the data set has to be SMS managed and you will need to use DATACLASS and STORAGECLASS parameters in your DEFINE CLUSTER control cards for IDCAMS. The DATACLASS you use must specify the extended format option as either preferred and/or required. The largest data set you can allocate without using the extended format options is around 4300 cylinders.
These control statements actually worked - DEFINE CLUSTER( - DATACLASS(MOD54) - STORAGECLASS(SMSML0) - BUFFERSPACE(1677604) - CONTROLINTERVALSIZE(26624) - CYLINDERS(7000) - NAME(NOAL.MANX.TEST) - NONINDEXED - RECORDSIZE(4086,32767) - REUSE - VOLUME(T04000) - SHAREOPTIONS(2) - SPANNED - SPEED - ) - DATA( - NAME(NOAL.MANX.TEST.DATA) ) HITACHI DATA SYSTEMS Raymond E. Noal Lab Manager, San Diego Facility Office: (858) 537 - 3268 Cell: (858) 248 - 1172 ---------------------------------------------------------------------- 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