It also states that the CISIZE must be equal to the physical record size. "Selecting the SMF Data Set Control Interval: The control-interval (CI) size of SMF data sets can range from 0.5K (512 bytes) to 26K (26624 bytes) in size, with certain restrictions. The user specifies the CI size of the SMF data set and the device type when the VSAM data set is defined. Then, VSAM chooses the physical record size of the data set based on the specified CI size and the track size of the specified device type. SMF requires the CI size to equal the physical record size; otherwise, SMF cannot open the data set. Instead, SMF issues an error message to the console in addition to displaying the 'feedback' code."
Tom Kelman Capacity Planning Commerce Bank, Kansas City -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of Brian Peterson Sent: Tuesday, November 16, 2010 2:52 PM To: IBM-MAIN@bama.ua.edu Subject: Re: ReSizing the SMF Man Files Mark is of course correct. In case you need a pointer, here's the IBM reference to the restriction on changing the CISIZE for an SMF data set. It could be a bit tricky to find as "CISIZE", "CI size", and "control interval size" are all keywords to describe this concept in the manual. >From z/OS System Management Facilities (SMF) topic 2.3.1.2 Using DEFINE to Create SMF Data Sets: "The CI size of the first SMF data set that the system opens during an IPL will be the CI size for all SMF data sets for that IPL. If SMF encounters a data set with a different CI size, then the data set is not used, and the system displays a message on the console informing the operator of the problem. A data set that has any error does not go on the list of active data sets. If all data sets fail to be successfully opened and allocated, then 4K (4096 bytes) is chosen as the default CI size for the IPL, and SMF buffers the data. "If you define a new group of SMF data sets with a different CI size, you must re-IPL to use these data sets. When you define an SMF data set, the logical record size must be 10 less than the CI size." Brian ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ***************************************************************************** If you wish to communicate securely with Commerce Bank and its affiliates, you must log into your account under Online Services at http://www.commercebank.com or use the Commerce Bank Secure Email Message Center at https://securemail.commercebank.com NOTICE: This electronic mail message and any attached files are confidential. The information is exclusively for the use of the individual or entity intended as the recipient. If you are not the intended recipient, any use, copying, printing, reviewing, retention, disclosure, distribution or forwarding of the message or any attached file is not authorized and is strictly prohibited. If you have received this electronic mail message in error, please advise the sender by reply electronic mail immediately and permanently delete the original transmission, any attachments and any copies of this message from your computer system. ***************************************************************************** ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
