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One of the features in the Migration Assistant interface is to restore the contents of a Time Machine backup. In other words, a hard drive can be restored from a Time Machine backup in the event of a catastrophic crash. OS X Mountain Lion introduced the ability to use multiple volumes simultaneously for Time Machine operations. When the user ...
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.
Recovery is also related to the type of Data Loss Event. Recovering a single lost file is substantially different from recovering an entire system that was destroyed in a disaster. An effective backup regimen has some proportionality between the magnitude of Data Loss and the magnitude of effort required to recover. For example, it should be ...
^14 External hard drive support: Can refer to an alternate backup destination or whether the service can back up external drives. ^15 Hybrid Online Backup works by storing data to local disk so that the backup can be captured at high speed, and then either the backup software or a D2D2C (Disk to Disk to Cloud) appliance encrypts and transmits ...
In one-way file synchronization, also called mirroring, updated files are copied from a source location to one or more target locations, but no files are copied back to the source location. In two-way file synchronization, updated files are copied in both directions, usually with the purpose of keeping the two locations identical to each other ...
Disk Utility is a system utility for performing disk and disk volume-related tasks. It can create, convert, backup, compress, and encrypt logical volume images from a wide range of formats, mount or unmount disk volumes, verify a disk's integrity and repair it if damaged, and erase, format, partition, or clone disks.
When a file in a user's Dropbox folder is changed, Dropbox only uploads the pieces of the file that have been changed, whenever possible. [104] When a file or folder is deleted, users can recover it within 30 days. For Dropbox Plus users, this recovery time can be extended to one year, by purchasing an "Extended Version History" add-on. [86]
Some operating systems, e.g., z/OS, have facilities for Reliability, availability and serviceability (RAS) and the OS can recover from the crash of a critical component, whether due to hardware failure, e.g., uncorrectable ECC error, or to software failure, e.g., a reference to an unassigned page.
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