One thing you need to remember is that the speed/recovery setting is only used on initial load. Once the dataset is loaded, the system ignores the parameter. IBM's recommendation is to use SPEED because it is faster. The way I read the z/OS 1.9 documentation, it also only has effect on the DATA component, not on the INDEX.
Rex -----Original Message----- From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On Behalf Of gsg Sent: Thursday, January 08, 2009 6:04 PM To: IBM-MAIN@bama.ua.edu Subject: Re: SMS Dataclass attribute I there any impact in setting all of your DATACLASSes to SPEED? I notice that alot of our datasets the index component is set to RECOVERY, but the data component is set to SPEED. Not sure why you would want to do that, but I would think the DATA component would be the most important. ---------------------------------------------------------------------- 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 ---------------------------------------------------------------------- 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
