badEvents.txt 01-04-2002 Bikle ----------------- From a high level view, what are some of the bad events we should monitor? Here's what I can think of: bad events ---------- down host down db down conc mgr down sqlnet down dns loss of one or more file systems out of disk space in file system archive dest 100% full out of space inside of oracle (tablespaces, rb segs, extents) bad looking errors in /var/adm/messages bad looking errors in oracle alert log bad looking errors in oracle listener.log the backup failed the cpu goes above 90% i/o rates on busy disks approach 0 hung printers hung conc requests zombie-like connections failed data feeds abnormal growth/shrinkage rates unexpected schema changes unexpected peripheral software changes (who upgraded apache?) hacker attack security weakness internal security breach network performance problems network connectivity problems Let me know if you can think of anything else. Thanks, -Dan