Why would you reduce the default disk_repair_time parameter?
A.
To extend the availability of your ASM disk groups.
B.
To reduce the need for high redundancy
C.
To reduce the amount of data collected for a fast resynch
D.
To increase performance of an Exadata Storage Server.
Explanation:
During transient disk failures within a failure group, ASM keeps track of the changed extents that
need to be applied to the offline disk. Once the disk is available, only the changed extents are
written to resynchronize the disk, rather than overwriting the contents of the entire disk. This can
speed up the resynchronization process considerably.
ASM drops disks if they remain offline for more than 3.6 hours. The disk groups default time limit is
altered by changing the DISK_REPAIR_TIME parameter with a unit of minutes (M or m) or hours
(H or h).
http://oracle.su/docs/11g/server.112/e10500/asmdiskgrps.htm#CHDBCBGF