"McKown, John" <[EMAIL PROTECTED]> wrote in message news:<[EMAIL PROTECTED]>.. . > This just came up. Which is better: to allocate more, smaller, SORTWKnn > DD statements, or fewer, larger, SORTWKnn DD statements, or does it not > really matter. By "better", I mean: "Which will result in a shorter run > time?". > > The question came up due to a huge sort this weekend. DFSORT wanted to > allocate the SORTWKnn space > 3390-3 volume. We only have 3390-3 > volumes. So the question is, do I update defaults to have more than 32 > volumes or do we consider creating 3390-9 volumes for SORTWKnn? > > This is IBM's DFSORT on z/OS 1.8. Yes, I am aware of Syncsort's MAXSORT > capability. No, it will not be considered. End of discussion on that > point, please. > > -- > John McKown
AFAIK DFsort does not care, as long as it gets its storage. However, allocating more SORTWK's takes longer and creates more overhead. Another point: in modern storage subsytems with WLM managed PAV enabled, there is no real reason anymore not to create all 3390-27's. 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
