Sometimes when you check Oracle Cluster Status Via “crs_stat -t” :
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ora.orcl.db application ONLINE ONLINE rac1
ora....11.inst application ONLINE ONLINE rac1
ora....SM1.asm application ONLINE ONLINE rac1
ora....DC.lsnr application ONLINE ONLINE rac1
ora....idc.gsd application ONLINE ONLINE rac1
ora....idc.ons application ONLINE ONLINE rac1
ora....idc.vip application ONLINE ONLINE rac1
ora....SM2.asm application ONLINE UNKNOWN rac2
ora....C2.lsnr application ONLINE ONLINE rac2
ora....dc2.gsd application ONLINE ONLINE rac2
ora....dc2.ons application ONLINE ONLINE rac2
ora....dc2.vip application ONLINE ONLINE rac2
If You try to restart Oracle Cluster via
./crs_stop -all
./crs_start -all
It will not working so you have to do the following simple steps :
First :
crs_stop -f Service_nameExample :crs_stop -f ora.rac2.ASM2.asm
Second :
crs_start -f services_name
Example :
crs_start -f ora.rac2.ASM2.asm
Thank you
Osama