There are several things wrong here, I think. >System Programmer Response: The default values in IVTPRM00 are 100M >for both FIXED and ECSA. Not in z/OS 1.8, they aren't. z/OS 1.8 comes with default values of 120M in IVTPRM00, and we do NOT overrride.
>D CSM >IEE305I D COMMAND INVALID Another error. But I have learned that the explanation messages are part of the HC code. Why don't you write an RCF to the health checker book? (I have recently been contacted by the owner of that book, and she was very helpful!) >So what drives this Healthcheck and how does it deal with 100MB which is >below the 120MB by default? The IVTPRMxx member - is it vanilla as delivered by IBM? What z/OS release? The apar that introduced that value says: "Highwater marks will be calculated for ECSA and for Fixed CSM storage, and they will be displayed via a Display CSM command. These high water marks will be reset to the current levels of ECSA and Fixed each time a display is done." I would have said that at one point since the last IPL you did reach the 120M high water mark (after all, that's my understanding of a high water mark), and usage has since decreased. But that contradicts the value 'since IPL' IVT5538I FIXED MAXIMUM = 120M FIXED CURRENT = 22436K IVT5541I FIXED MAXIMUM USED = 22436K SINCE LAST DISPLAY CSM IVT5594I FIXED MAXIMUM USED = 22436K SINCE IPL So what's the difference between IVT5538I and IVT5594I? And why does the check report an error? Regards, Barbara -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kanns mit allen: http://www.gmx.net/de/go/multimessenger ---------------------------------------------------------------------- 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

