Updated Aug 25 /10
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DiskWarrior by Alsoft
DiskWarrior 4.2 - $119 - in stock
(DVD rev.1001)
DiskWarrior is a utility program designed from the ground up with a
totally different approach to preventing and resolving directory damage
which is the leading cause of Mac instability.
DiskWarrior resolves existing disk damage by rebuilding your disk directory
using data recovered from the original directory, thereby recovering
files and folders that you thought were lost. The directories DiskWarrior
creates are also optimized for maximum directory performance.
DiskWarrior is not a disk repair program in the conventional sense. It does not attempt to solve all of the possible problems that can occur with a disk. It specializes in eliminating directory errors - the most common problems Mac OS users have with their disks.
DiskWarrior rebuilds your disk directories making them error-free, eliminating
any problems the errors would have caused, and recovering lost files.
It fixes any problem with master directory blocks and alternate master
directory blocks (HFS), volume headers and alternate volume headers (HFS
Plus), volume bitmaps, catalog trees, and extents trees.
This approach has a significant advantage that the others overlook. Other products attempt to repair your directory one step at a time, ignoring the big picture of what is truly wrong with your directory, and risking file information that could be saved. Too often, they will incorrectly begin to "repair" your directory, and then give up when they realize that they have modified the directory to an irreparable state. At Alsoft, we know that the most important thing when you are attempting to repair your disks is getting your data back. That's why the first thing DiskWarrior checks is your directory data, and that's what it uses to create a replacement directory. DiskWarrior continues its rebuild operations unless no directory data can be found.
Directory damage isn't the only threat to your data. A physical hardware
malfunction can cause intermittent loss of access to any data on the
drive. If the malfunction is serious enough, the only way to retrieve
the data on the drive is through an expensive data recovery service.
DiskWarrior can be configured to automatically check drives for possible
drive malfunction, giving you the chance to back up your data before
a drive completely fails. The hardware monitoring can also be run manually
if you suspect a drive malfunction.
Alsoft has been making disk utilities for the Mac over 20 years. Our
disk optimization utilities have always chosen the safety and security
of your data over anything else, and have been able to detect and report
directory errors no other program can (the others obviously couldn't
fix the problems they couldn't even find). That knowledge has been put
into DiskWarrior to give you the only tool that can eliminate all directory
problems and recover lost files and folders! And, as an added bonus,
the directory DiskWarrior creates is optimized for maximum speed when
accessing your files!
What Other Features Are There?
DiskWarrior is the only program where there is never a risk of losing directory data and thus never a risk of losing access to your files.
Only DiskWarrior has all of these features:
• Universal Binary
• Repairs invalid file permissions
• Finds corrupted Preference (.plist) files
• Optimizes, repairs and rebuilds FileVaults
• Tests the length of path names for each item on your drive
• Fully supports case-sensitive file names
• Rebuilds Attribute B-trees
• Repairs and rebuilds Access Control Lists (ACLs)
• Uses directory data to quickly rebuild the directory structure
• Eliminates risk of losing access to files – other disk "repair" utilities attempt to fix the directory by patching the directory structure and risk deleting sections of the directory
• Scavenges directory to find all salvageable file and folder data, even data contained in damaged nodes
• Eliminates unseen directory errors, preventing minor directory errors from escalating into major problems
• Recovers missing files and folders
• Optimizes directory for maximum directory performance, speeding up overall disk performance
• Monitors drive hardware for potential drive failure
• Verification of replacement directory ensures data integrity
• Comparison of original directory with replacement directory tells you which files and folders may have been affected by directory damage
• Patented preview feature to view what the disk will look like after the directory is rebuilt, allowing you to view files and folders before any directory changes are written to disk
• Repairs damaged boot blocks and blesses the system folder to ensure that the computer will start from the repaired disk
• Checks custom icon files for corruption, eliminating a common cause of system crashes
• Repairs problems with wrapper volume System files caused when HFS Plus disks are initialized under Mac OS 9.0 - 9.0.4
• Safely permits interruptions of any kind, including power outages
• Advanced "Verify Reads and Writes" technology protects your data
• Supports bad block sparing software
• Supports file journaling (Mac OS X 10.2.2 or later)