Database Overall → ASM
This enhancements represents two changes. The first extends the default disk failure timeout interval (DISK_REPAIR_TIME) from 3.6 hours to 12 hours. In many environments, 12 hours is better suited for safe guarding against data loss because of multiple disk failures, and at the same time, reducing unnecessary overhead from prematurely dropping a disk during a transient failure. The second enhancement provides a new Disk Group Attribute called CONTENT_HARDCHECK.ENABLED that allows optionally enabling or disabling Hardware Assisted Redundancy Data (HARD) checking in Exatadata environments.
Business Benefit: These two enhancements provide Exadata customers greater control for how ASM provides essential data protection. Specifically Hardware Assisted Redundancy Data checking and automatic dropping of failed disks from an ASM Disk Group.