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RMAN (Recovery Manager) is a backup and recovery manager supplied for Oracle databases (from version 8) created by the Oracle Corporation. [1] It provides database backup , restore, and recovery capabilities addressing high availability and disaster recovery concerns.
Like the Oracle Exadata Database Machine, it is periodically refreshed as a new interoperable and expandable “generation” based on newer hardware technology at the time of release. In September 2019, the Recovery Appliance X8M introduced a 100 Gbit/s internal network fabric based on RoCE ( RDMA over Converged Ethernet ), replacing the ...
The most common data recovery scenarios involve an operating system failure, malfunction of a storage device, logical failure of storage devices, accidental damage or deletion, etc. (typically, on a single-drive, single-partition, single-OS system), in which case the ultimate goal is simply to copy all important files from the damaged media to another new drive.
[1] [2] [3] Note for example Windows XP's capability to restore operating-system settings from a past date (for instance, before data corruption occurred). Time Machine for Mac OS X provides another example of point-in-time recovery.
Modern hard drives feature an ability to recover from some read/write errors by internally remapping sectors and performing other forms of self-test and recovery. The process for this can sometimes take several seconds or (under heavy usage) minutes, during which time the drive is unresponsive.
AOL's Search and Recover can assist you in locating any lost files or folders that may have been mistakenly deleted. Search and Recover is able to perform recoveries for many digital media and devices including cameras, music players, CDs, DVDs, memory cards and flash drives. Please note that solid state drives aren't covered. Additional info
Please help improve this article if you can. ( March 2012 ) ( Learn how and when to remove this message ) Automatic Storage Management (ASM) is a feature provided by Oracle Corporation within the Oracle Database from release Oracle 10g (revision 1) onwards.
From that point it is possible to restore the DPT and the TT as they were at the time of the crash by reading the logfile forward again. Then it is possible to proceed as usual with Redo and Undo. The naive way for checkpointing involves locking the whole database to avoid changes to the DPT and the TT during the creation of the checkpoint ...