Database Reference
In-Depth Information
CRS-4529: Cluster Synchronization Services is online
CRS-4533: Event Manager is online
Before you can dismount the old ASM diskgroup, you need to check if there is anything on it. In this example, we
found that the ASM instance spfile was on that diskgroup and needed to move the spfile to the new ASM diskgroup.
6.
Move the ASM spfile to the new diskgroup.
Check the current ASM spfile location:
SQL> show parameter spfile
NAME TYPE VALUE
---- ----------- ------------------------------------------------------------
spfile string +OCRV/k2r720n-cluster/asmparameterfile/registry.253.773325457
Create a pfile from the spfile:
SQL> create pfile='/home/grid/init+ASM.ora' from spfile;
Recreate the new spfile on the new diskgroup VOCR from the pfile:
SQL> create spfile='+VOCR' from pfile='/home/grid/init+ASM.ora';
Restart HAS (Oracle High Availability Services)
# ./crsctl stop has
# ./crsctl start has
Check the new spfile location:
SQL> show parameter spfile;
NAME TYPE VALUE
---- ----------- ------------------------------------------------------------
spfile string +VOCR/k2r720n-cluster/asmparameterfile/registry.253.779041523
In this example, there are a few places where you need to pay special attention. Since the new ASM diskgroup
VOCR is for the OCR and voting disk files, you need to follow the failure group rules, namely, three failure groups for
normal redundancy and five failure groups for high redundancy; otherwise, the command 'crsctl replace votedisk
+VOCR' would fail with the error “ora-15274 error, Not enough failgroups(s) to create voting file.” You also need to set
the compatible parameter to 12.1.0.0.0 for the new VOCR diskgroup in order for the VOCR diskgroup to store the OCR
and the voting disk file. The default setting of the compatible parameter of an ASM diskgroup is '10.1.0.0.0.
ACFS
When it was introduced in Oracle 10gR1, Oracle ASM was designed to be a volume manager and a file system for Oracle
Database files, not for general-purpose files. This remained the case until Oracle ACFS was introduced in Oracle 11gR2.
Oracle ACFS is an extension of Oracle ASM to store those non-Oracle Database files. Such files can be software binaries
such as Oracle Database binary, applications files, trace file, BFILES, video, audio, text, images, and other general-purpose
files. To help you understand the file types supported by Oracle ASM and Oracle ACFS, here are some general guidelines:
1.
Oracle ASM is designed for and optimized to provide the best performance for Oracle
Database files such as data files, controlfiles, spfiles, redo logs, tempfiles, and the OCR and
voting disk files of Oracle Clusterware.
 
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