9.2.7 Cell-to-Cell Rebalance Preserves Storage Index

Storage index provides significant performance enhancement by pruning I/Os during a smart scan. When a disk hits a predictive failure or a true failure, data needs to be rebalanced out to disks on other cells. This feature enables storage index entries, created for regions of data in the disk that failed, to be moved along with the data during the cell-to-cell offloaded rebalance to maintain application performance.

This feature provides significant performance improvement compared to earlier releases for application performance during a rebalance due to disk failure.

Minimum software required:

• Oracle Exadata Storage Server Software release 12.1.2.3.0

• Grid Infrastructure release 12.1.0.2.160119 with patch 22682752