Log Locations
| Trace File | 11gR2 Trace Location | Description |
| Kernel syslog file | Vendor-specific, e.g. /var/log/syslog/* | OS or vendor clusterware events, including node reboot times |
| CSS logs | <CRSHome>/log/<hostname>/cssd | Oracle Clusterware cluster synchronization services (CSS)To get more tracing, issue `crsctl set css trace 2` as root |
| CRS logs | <CRSHome>/log/<hostname>/crsd | Oracle Clusterware cluster ready services (CRS) management and HA policy tracing; one log per RAC host |
| EVM logs | <CRSHome>/log/<hostname>/evmd | Oracle Clusterware event management layer tracing; one log per RAC host |
| OHAS logs(11R2 only) | <CRSHome>/log/<hostname>/ohasd | Oracle High Availability service daemon; one log per RAC host |
| MDNS logs(11R2 only) | <CRSHome>/log/<hostname>/mdnsd | Multicast Domain Name Service Daemon; one log per RAC host. |
| GPNP logs(11R2 only) | <CRSHome>/log/<hostname>/gpnpd | Grid Plug and Play Daemon; one log per RAC host. |
| DISKMON logs(11R2 only) | <CRSHome>/log/<hostname>/diskmon | Disk Monitor daemon; one log per RAC host. |
| CTSS logs(11R2 only) | <CRSHome>/log/<hostname>/ctssd | Cluster Time SynchronizationService (CTSS); one log per RAC host. |
| SRVM logs | <CRSHome>/srvm/log | OCR tracing; to get more tracing, edit mesg_logging_level in srvm/admin/ocrlog.ini file; one log per RAC host |
| RDBMS logs | Depends on your setting, do a “show parameters dump_dest” under sqlplus prompt | RDBMS trace files, bdump/ cdump/ & udump/ |
| ASM logs | Depends on your setting, do a “show parameters dump_dest” under sqlplus prompt | ASM trace files, bdump/ cdump/ & udump/ |
| CRSD oraagent Logs(11R2 only) | <CRSHome>/log/<hostname>/agent/crsd/oraagent_<crs admin username> | Oracle agent (oraagent), which was known as RACG in 11R1. |
| CRSD orarootagent Logs (11R2 only) | <CRSHome>/log/<hostname>/agent/crsd/orarootagent_<crs admin username> | Oracle root agent (orarootagent), which manages crsd resources owned by root, such as network, vip and scan vip |
-Thanks
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