Mac OS Extended or HFS+ is a journaled file system, invented by Apple Inc. HFS+ is the successor of HFS (Hierarchical File System). It is an advanced and stable file system and offers you excellent performance in storing, retrieving, organizing, and manipulating the data. Along with all advanced security and performance features, the file system supports journaling feature to prevent file system corruption in case of improper system shutdown and prevents need of Mac data recovery solutions.

Journaling is a file system feature, which helps protect file system against improper system shutdown, system crash, power outages, and hardware failure, minimizing the need for file system repairs. It improves the computer's availability and the fault resiliences that is particularly noteworthy for the servers. The journaling feature protects integrity and consistency of HFS+ file system...

Mac OS X operating system uses a special data structure to store, manage, and manipulate your valuable data. It is known as file system. Macintosh operating system supports the HFS (Hierarchical File System) series of file systems. HFS file system has various variants, such as HFS+, HFSX, and HFS Wrapper. Among all, HFS+ is the most powerful file system, which supports advanced features like journaling and enhanced performance. The journaling feature prevents system failure and file system corruption to avoid need of Mac recovery, in case of improper system shutdown.

File system is the most critical component of Mac OS X operating system. It has to be intact and in working state to keep your system up. If file system is damaged, system may not work properly. However, in some cases, the file system may become dirty. It does not let you boot your system properly and access stored data from the hard drive. At this point, you may come across an error message, similar to the following one:...

Is your Time Machine backup locked after you repair your Mac OS X computer? Are you unable to access data from Time Machine volume? Does you Mac OS X computer starts creating fresh backup automatically when you connect your external Time Machine drive to system? This behavior usually occurs due to permission issues in Macintosh machine. The permissions are either damaged or missing. At this point, you need to format your hard drive to fix the problem. However, it removes all the data from hard drive and cause serious data loss situations. In order to recover your valuable data, you must opt for Mac recovery solutions.

When you backup volume gets locked, the Time Machine icon is replaced with simple volume icon with a small lock on it. In such cases, the volume can not be mounted and you can not access data stored on it. In case the volume is mountable and you attach it to a newly installed Mac computer, the same problem occurs with this computer as well. Your system drives get locked and it become totally unusable...

Are you unable to access your external FireWire derive on Mac OS X operating system based computer? Cannot you mount the external hard drive after changing permissions to “no access” through “Get Info” window? This behavior of Mac OS X hard drive renders all your valuable data inaccessible and you come across serious data loss situations. The problem may occur due to improper modification of access permissions of the hard drive. In such critical situations, you need to opt for Mac recovery solutions, if there is no backup in place.

Changing your access permissions to no access is quite light protection as you can switch to access mode by using “Get Info” window. However, in some cases, the mount process does not work on such a drive that needs to be mounted first before you try to access your significant data. In such cases, some of the Mac users try to clear up the disk permissions and then mount hard drive. You can remove permissions using the following commands on Terminal:...

Apple has released updates for Mac OS X Snow Leopard, namely 10.6.4. It has operating system bug fixes, which improves the compatibility, security, and stability of Mac computer. However, in some cases it may also affect the working of your system. Your system may not work properly and sometimes the Time Machine backup volume gets locked. In such cases, you can not restore backup and come across critical data loss situations if your system fails. At this point, you need to opt for Mac recovery solutions to get your mission-critical data back.

In a practical scenario, the fsck utility works for a long time upon rebooting your system after installing the updates. After you stop the fsck process, your Time Machine backup volume gets locked. If you run Disk Utility to unlock the volume, it shows that the volume has no errors. The “chflags nouchg”, a terminal command helps you to unlock the volume Mac volume, command does not help you unlock the volume...