Oracle OCP 1Z0 053 Q33(ALTER DISKGROUP ** CHECK)
33.You want to perform the following operations for the DATA ASM disk group:
-Verify the consistency of the disk.
-Cross-check all the file extent maps and allocation tables for consistency. heck whether the alias
metadata directory and file directory are linked correctly.
-Check that ASM metadata directories do not have unreachable allocated blocks.
Which command accomplishes these tasks?
A. ALTER DISKGROUP data CHECK;
B. ALTER DISKGROUP data CHECK DISK;
C. ALTER DISKGROUP data CHECK FILE;
D. ALTER DISKGROUP data CHECK DISK IN FAILURE GROUP 1;
Answer: A
参考：http://blog.csdn.net/rlhua/article/details/13776653
-Verify the consistency of the disk.
-Cross-check all the file extent maps and allocation tables for consistency. heck whether the alias
metadata directory and file directory are linked correctly.
-Check that ASM metadata directories do not have unreachable allocated blocks.
Which command accomplishes these tasks?
A. ALTER DISKGROUP data CHECK;
B. ALTER DISKGROUP data CHECK DISK;
C. ALTER DISKGROUP data CHECK FILE;
D. ALTER DISKGROUP data CHECK DISK IN FAILURE GROUP 1;
Answer: A
参考：http://blog.csdn.net/rlhua/article/details/13776653
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