ASMCMD-8016 unable to copy controlfile in ASM


During DB cloning or duplication , we may encounter below error while backing up control file or any other ASM db file within ASM disk group or on local file system

Error:

ASMCMD> cd +RECO/testdb/controlfile/
ASMCMD> cp control02.dbf /u01/oneoffpatches
copying +RECO/testdb/controlfile/control02.dbf -> /u01/oneoffpatches/control02.dbf
ASMCMD-8016: copy source '+RECO/testdb/controlfile/control02.dbf' and target '/u01/oracle/control02.dbf' failed
ORA-06550: line 3, column 9:


common mistakes by DBA



Listing down common mistakes that every DBA makes at least once in his career , there are few which are common for beginner but more often for "good experienced DBA's" too.

Here i highlighted experience DBA's are always good ,even though they make mistake but keeps courage to recover and learn from it :)


1 : Attempt to start the DB which is already running !

yeah ! i knew it you have done that , so even i.

This mostly happens during planned activity , OS admin asked to startup DB but its already up through cluster through init services.

CRS-4013: This command is not supported in a single-node configuration

Issue: Getting CRS-4013 , CRS-4000 error while starting up cluster services



CRS-4013: This command is not supported in a single-node configuration.
CRS-4000: Command Start failed, or completed with errors.

One of the cluster node is reporting the CRS-4013 , CRS-4000 error while other node is up in 2 node RAC cluster 

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1. Know your subject

Congratulations ! For making your mind agree to create your own website which puts you in blogger/writer category.