Have you checked to make sure that disk stats are on? Use (cautiously) "diskperf" from command line to check. I usually turn 'em off because they do add some overhead. HTH! GL! Rich -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Jeffrey Beckstrom Sent: Wednesday, April 12, 2006 10:18 AM To: oracle-l@xxxxxxxxxxxxx; oracle-db-l@xxxxxxxxxxxxxxxxxxxx; ORACLE-L@xxxxxxxxxxxxx; oracle-rdbms@xxxxxxxxxxxxxxx Subject: Grid Control host metrics failing for disk We have had an SR and now a bug where on a W2K server, agent is having a problem getting performance metrics. C:\WINNT>nmupm oscpuusage em_result=0|1942196562500|989607343750|42786406250|131521202500000 em_result=1|2036246875000|968645781250|60344531250|131448111093750 em_result=2|1998916250000|1010647031250|59890625000|131443440312500 em_result=3|1971806562500|983023593750|58793125000|131498173281250 C:\WINNT>nmupm diskactivity em_error=AddCounter::PdhMakeCounterPath failed 0 em_error=AddCounter::PdhMakeCounterPath failed 0 em_error=AddCounter::PdhMakeCounterPath failed 0 em_error=AddCounter::PdhMakeCounterPath failed 0 em_error=AddCounter::PdhMakeCounterPath failed 0 em_error=AddCounter::PdhMakeCounterPath failed 0 em_error=collect query failed So looks like problem getting diskactivity but CPU is working. Anybody have any suggestions at all. Jeffrey Beckstrom Database Administrator Greater Cleveland Regional Transit Authority 1240 W. 6th Street Cleveland, Ohio 44113