Hello Franz, Please check the QUICKDSP of the VSE/VTAM system.
It seems to me that VTAM (any version) does some things that make z/VM think that the system should be taken off the VM Dispatch list only to be put back on almost immediately. What was the setting on the VM/VTAM service machine? Ed Martin Aultman Health Foundation 330-588-4723 ext 40441 -----Original Message----- From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Monday, November 24, 2008 9:41 AM To: IBMVM@LISTSERV.UARK.EDU Subject: permanent 40-50% difference between added cpu% of all guest machines and IND LOAD cpu% Hello listers, I have installed zVSE 4.1.1 und zVM 5.3 (Level 0703) at a customer where we replaced vm/vtam with an additional 4th zVSE machine with only vtam running for cross-domain between three zVSE4 systems. Before the change of the environment the customer was on zVSE 4.1.0. The added cpu consumption of the running guests is between 40-50% but the IND LOAD and the activity on HMC shows permanently between 85 and 100% cpu usage. This creates of course massive performance problems. I have no clue what process(es) may create this additional load. We have restarted the zVM but it didn't help. If you put e. g. a batch job on the zVSE the cpu load of the zVSE rises as expected to 30-50% and the the vm load as indicated by IND LOAD is between 85 and 100%. Except of the production VSE the load of the other machines including VM tcpip, FTPSERVE and any others can be almost neglected (in sum below 10%). There are no error msgs from hardware which could explain such a behaviour. For documentation I have attached the user direct entries of the vse systems, the system config, the autolog profile and the cms profile of the VSE systems. Has anybody experienced such a behaviour of zVM and an idea where to look for the error. I know that the IND LOAD cpu value is rounded over a period of time, but I have never seen a difference greater than 5 - 10% to the added cpu% of the running systems. -- kind regards Franz Josef Pohlen