The process of disk initialization and formatting in Mac OS X involves multiple steps viz. Formatting disk, its verification and the last step is that of disk zeroing. The processes involved here may turn to fatal instances of data loss, which may in cases be complete loss of data and other troublesome impacts following it. During entire process carried over here, errors may crop up, that not only leads to abrupt termination of the process being done and can even lead to data loss situation in the time to come. Mac disk initialization has since long been known as the prime cause of loss of data from Mac. This is the time when Mac system partitions which hold significant data files is missing from the system and it is asked for formatting drive from Apple Mac Disk Utility.

Disk initialization error & data loss after it is, most often noted in scenarios when a external hard drive is connected with the Mac System. At this point of time, there is high risk of facing data inaccessibility situations post the system generates disk initialization failed error messages. Users having no idea of the same are most likely to be in a daunting situation and their minds puzzled with number of questions as what is to be done at this point of time.

How to get rid of disc not initialized issues?

Here as the way out to undelete lost data files, it becomes necessary to take according measures at the right point of time. In most of these cases disk utility acts as the help at the first point, whereby the disk experienced incompetencies could be rectified with the help of the same. Depending on the extent of corruption & damages associated the error could possibly be resolved this way, however the case may be that the processes fail to work, giving further more errors after mac disk initialization fails.

If it happens so, you are likely to experience following error message on the screen -

Verify and Repair Volume ‘disk1s3’
Checking Journaled HFS Plus volume.
Invalid B tree node structure.
Volume check failed.

The problem is perceived to be an issue with file system & data structure are need to be dealt with & rectified in an according manner. Apple Map Partition Table Corruption, Journal corruption or Catalog B-Tree damages are the most obvious reasons that would make logical Mac volume's data inaccessible.

After the initialize disk data loss problems that took place has been rectified & the system is formatted, data recovery process can thereafter be carried with the aid of Macintosh file recovery utilities that thoroughly scans the system for locating the lost and deleted files so as to have them rescued and saved back on place.