問題文
A hard disk in a storage server has failed outright. Before anyone touches the hardware, what has Exadata already done with the Oracle ASM disks that sat on that hard disk?
選択肢
- It has dismounted the disk groups that had members on that disk, and a restore from the backup has started so that the files of the affected tablespaces are written back to the cell.
- It has dropped them out of the disk groups of the cluster with the forcing option, and a rebalance has started so that the redundancy of the data is restored while the rack keeps serving the databases.
- It has moved them to another storage server of the rack, and a copy has started so that the members of the disk group are spread evenly over the cells that remain in the configuration.
- It has taken them offline for the duration of the repair timer, and a resync has started so that the changed extents are copied back as soon as the same disk answers again.