RStudio failed to detect one folder with a file, while DiskDrill and UFSExplorer couldn’t preview certain files. The only downside in EaseUS is that it lacks the quick scan option. Summing up, we can say that the tool has coped with the task partially, as it encountered difficulties in displaying documents.Īfter the first round of testing, the two best tools are Hetman Partition Recovery and EaseUS as they both didn’t have any issues when analysing the test disk. The Catalog File is a B-tree that contains records for all the files and directories stored in the volume. Volume header which is located in the second sector.HFS boot blocks located in sectors 0 and 1.The following elements are most important for the proper operation of the file system and are of special interest when searching for missing data: To manage the process of data allocation on the disk, HFS+ stores special service information known as metadata. Just as its predecessor, HFS+ uses the so-called B-tree to store a major part of metadata. Journaled operating system keeps a log file (journal) of changes which helps to recover the hard disk quicker after failures, and accelerates the work of Time Machine. HFS+ introduced journaling, which increased reliability of data storage. HFS+ or Mac OS Extended is the update for the previous file system format by Mac OS known as HFS, or Hierarchical File System.
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