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CRS: Resource in UNKNOWN state and SRVCTL Cannot Start the Resource

In this Document

Applies to: Oracle Server - Enterprise Edition - Version: to - Release: 10.2 to 11.1
Information in this document applies to any platform.
GoalA resource status is showing as UNKNOWN in crs_stat -t output :

$ crs_stat -t
Name Type Target State Host
ora....d1.inst application ONLINE UNKNOWN <<<<--- ora....d2.inst application ONLINE ONLINE stella2 application ONLINE ONLINE stella2 ora....od1.srv application OFFLINE OFFLINE ... When the resource state is UNKNOWN, srvctl cannot start or stop the resource. It fails with the following errors: $ srvctl start instance -d prod-i prod1 PRKP-1001 : Error starting instance prod1 on node oradb1 CRS-1028: Dependency analysis failed because of: CRS-0223: Resource '' has placement error. After the failed srvctl command, the crsd.log will show an error: Human intervention required to resume its availability. Even running srvctl status on the resource can error: $ srvctl status database -d prod PRKO-2015 : Error in checking condition of instance on node: oradb1 PRKO-2015 : Error in checking condition of instance on node: oradb2 These errors are all due to the resource state of UNKNOWN. SolutionThe UNKNOWN state can often be resolved by bringing the resource offline using crs_stop. Note: crs_stop and crs_start are NOT supported for use on ora.* resources, unless you are explicitly instructed to use them by an Oracle support analyst, or following this note's steps EXACTLY. Improper use of crs_stop and crs_start can corrupt your OCR. Any CRS resource can be in an UNKNOWN state, including vip, gsd, database, or instances. The following uses an instance resource as an example. 1. Find the proper name for your instance resource. To find it, do "crs_stat -u | grep inst", this will give the names of all instance resources in the OCR. $ crs_stat -u | grep inst NAME=ora.V102.V1021.inst NAME=ora.V102.V1022.inst Pick the instance associated with the node and database in question. For example, for a database named prod and instance named prod1, the resource name will be "". 2. Before you go any further, make sure that you have a recent backup of your OCR. You can check on your OCR automatic backups with the command "ocrconfig -showbackup": $ ocrconfig -showbackup oradb1 2009/06/19 07:35:28 /u01/app/oracle/product/10gR2/crs/cdata/temp oradb1 2009/06/19 03:35:26 /u01/app/oracle/product/10gR2/crs/cdata/temp oradb1 2009/06/18 23:35:25 /u01/app/oracle/product/10gR2/crs/cdata/temp oradb1 2009/06/18 03:35:20 /u01/app/oracle/product/10gR2/crs/cdata/temp oradb1 2009/06/02 07:01:26 /u01/app/oracle/product/10gR2/crs/cdata/temp If no backup exists, then create one using ocrconfig -export, following the instructions in the documentation:]Oracle� Database Oracle Clusterware and Oracle Real Application Clusters Administration and Deployment Guide - 10g Release 2 (10.2) 3. Restore the instance resource to OFFLINE with this command: crs_stop [instance resource name] eg: $ crs_stop Note: if the instance is online then this command will stop it. 4. Check that instance status is now OFFLINE instead of UNKNOWN $ crs_stat -u TYPE=application TARGET=OFFLINE STATE=OFFLINE 5. If the instance status is OFFLINE, then you can try again to start it with srvctl. 6. If the startup fails again, then open a SR and provide Oracle Support with the following information: a) Gather a trace by using the following script. script. /tmp/trace1.out env crs_stat -u crs_stop crs_stat -u export SRVM_TRACE=TRUE srvctl start instance -d prod -i prod1 export SRVM_TRACE= crs_stat -u exit (Replace "" with the name of your actual instance resource; replace prod with the name of your database and prod1 with the name of your instance). The trace log will be found in /tmp/trace1.out. b) latest crsd.log from this node c) the resource log for this instance from $CRS_HOME/log/<>/racg

d) ls -l of $ORACLE_HOME/log/<>/racg