DiskWarrior

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 25 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 files and folders! And, as an added bonus, the directory DiskWarrior creates is optimized for maximum speed when accessing your files!

What is new in this release:

• 64-Bit Today's large disks can have large directories. Using the latest 64-bit technology allows DiskWarrior 5 to handle even the largest disks.
• Ships on a bootable flash drive to repair your startup disk Flash drives start up much faster than DVDs and can be updated as needed.
• Includes the new DiskWarrior Recovery Maker New Macs have new OS X startup requirements. DiskWarrior Recovery Maker updates your DiskWarrior Recovery flash drive with the latest OS X.
• Runs from OS X Recovery (Recovery HD) In an emergency, you no longer need a separate startup disk to run DiskWarrior on your startup disk unless your startup disk has partition table damage.
• Repairs partition table damage Sometimes the damage is to the map that describes all your drive's partitions which makes all your partitions unavailable. DiskWarrior 5 can repair standard Mac GUID partition tables when started from the DiskWarrior Recovery flash drive.
• New architecture Updated to use the newest OS X technologies while still supporting older PowerPC and Intel Macs that can no longer run the latest OS X.
• Significantly faster For many disks, directory rebuilding is twice as fast as the previous version.
• Recovers more data from drives with hardware malfunctions Recover your important files from most failing drives, possibly saving you thousands of dollars in professional recovery costs.
• Detects and repairs more disk problems than ever The best is even better.
• New Directory Optimization Index You can tell how efficient your directories are at a glance.
• Repairs Time Machine backup disks Drives containing Time Machine back ups can have enormous directories that were often too large for DiskWarrior 4. The 64-bit memory addressing of DiskWarrior 5 allows these drives to be repaired or recovered.