"Tommy Tsui" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>... > Hi all, > > I found there are some different between use TSO option 3.2 to allocate a > data set compared with use IEFBR14. why? > for example I try to allocate a dataset with SPACE=(CYL,100,100). what I get > ... > > 1. use TSO 3.2 allocate a SMS managed dataset > 1st extent cylinders: 100 > Secondary cylinders :100 > > 2. use IEFBR14 batch job to allocate the same SMS managed dataset > 1st extent cylinders: 84 > Secondary cylinders : 84 > > the storage group threshold: > Allocation/migration Threshold: High . . 85 (1-99) Low . . 80 > (0-99) > > > is it related to the threshold setting ? > > Best regards > > Tommy
This is an old one: your SMS default Device Geometry is still 3380. This means that any dataset that is allocated to something general like DISK or SYSDA is supposed to be 100 cylinders of a 3380, which is recalculated to 84 cylinders on a 3390. If you specify UNIT=3390 or something that translates to this, you will get 100 cylinders of 3390, which is what you expected. Be aware that, when you change this, lots of allocations will suddenly request 20% more space (100/84). Kees. ********************************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ********************************************************************** ---------------------------------------------------------------------- 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
