RAC useful Commands

1) Check the status of the cluster
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crsctl check crs
crsctl check cluster
crsctl check cluster -all

2) Check the status of the services on the cluster
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crsctl status resource -t

3) Stop crs on all nodes
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which crsctl
sudo path/crsctl stop cluster -all

4) Stop crs on specifc node
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sudo path/crsctl stop has

5) Disable CRS from starting on reboot
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sudo path/crsctl disable has

6) Enable CRS to start on reboot
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sudo path/crsctl enable has

7) Start crs on specifc node
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sudo path/crsctl start has

8) Check database status
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srvctl status database -d REMCORP

9) Stop / Start an instance
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srvctl stop instance -i REMCORP1 -d REMCORP
srvctl start instance -i REMCORP1 -d REMCORP

10) Stop / Start an Database
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srvctl stop database -d REMCORP
srvctl start database -d REMCORP

srvctl modify database -d REMCORP -s open,mount

11) Stop/Start listener on a node
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srvctl status listener -n remedy-ebu-db1
srvctl stop listener -n remedy-ebu-db1
srvctl start listener -n remedy-ebu-db1

12) Check the voting disk
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crsctl query css votedisk

13) Query the network addresses
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oifcfg getif

14) Show OCR backup – the voting file (disk) is also backed up with the OCR backup
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ocrconfig -showbackup

15) Taking a manual backup of the OCR
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ocrconfig -manualbackup