Disk Utility, as its name implies, is a utility for management of hard drive, CD/DVD and compressed image files. Most of its advanced features, such as partitioning, formatting, cloning, partition table management are intended for power users of the operating system, however, the utility may be useful for an average Mac user with its basic features as well.
Basic user features include: information about a partition or a disk, burning an image to a disk, verifying file system, and enabling journaling for a particular partition or a hard drive. Power users would be interested in the program ability to create, resize, and close images of hard drive or CD/DVDs. Disk erasing now supports "zero" write for secure wiping of the disk or a partition. The standard set of tools: permission management, image converter, MBR management, checking S.M.A.R.T. stats for a hard drive, restoring hard drives from an image are among most prominent power user features.
As a comprehensive data recovery app, Disk Drill requires low-level access to the scanned storage devices. The macOS operating system gives such a privileged level of access only to the most trusted software, and Disk Drill is the premier solution to recover deleted data not only from external drives, but also system disks powering Macs with Intel, Apple T2, M1 and M2 chips.
Permanently deleted files that have become overwritten by new data can still be recovered from existing backups, and Disk Drill makes this easier by parsing Time Machine backup disks and scanning local Time Machine snapshots.
Time Machine backup disks are external or network-attached storage devices where incremental backups of your files are saved. Such disks are automatically detected by Disk Drill, and you can scan them with just a click. Local Time Machine snapshots, on the other hand, are saved on the system drive when backup disks are not available, and Disk Drill can also scan them for you.
You may wish to partition a disk to divide it into separate containers or because you want to install multiple operating systems. How you do this will depend on the version of macOS you are running. On newer Macs rather than create a partition you should create a volume.
Disk Drill for Mac supports all major file systems (HFS & HFS+, FAT/FAT32/exFAT, NTFS, EXT3/EXT4), and it works with internal and external storage devices alike. Included with it are multiple Mac HDD repair tools, including a disk monitoring tool that can alert you when your hard drive starts to show signs of failure.
While not nearly as popular as it used to be some 10 years ago, TechTool Protogo, now part of the TechTool Pro product line, still remains one of the best disk repair software Mac users should know about. Unlike many other disk repair tools for Mac computers, TechTool Protogo can bypass the operating system and run directly from a bootable diagnostic device, which is essentially a convenient disk repair toolbox with the right tool for just about any disk repair job.
DiskWarrior specializes in eliminating directory errors on Mac computers. Its signature approach to disk repair prevents data loss by creating an error-free version of the damaged data and comparing it with the original data to verify its integrity. This approach has earned DiskWarrior multiple awards over the years, and users who have been able to avoid a disastrous loss of data with this Mac drive repair software swear by it.
Data Rescue 6 for Mac has a lot in common with our favorite Mac disk repair software, Disk Drill for Mac. Both software applications are comprehensive data recovery solutions intended to recover permanently deleted files from a variety of storage devices. Just like Disk Drill for Mac, Data Rescue 6 offers two distinct data recovery methods: Quick Scan and Deep Scan. Last but not least, both data recovery solutions have been around for a long time and received many positive reviews from professional reviewers and customers alike.
Carbon Copy Cloner is the right Mac disk repair software to use when all other disk repair software applications fail. Its main feature is the ability to create bootable backups that can be stored anywhere and used in a minute. When a disaster strikes, you can simply boot from a Carbon Copy Cloner backup and repair the malfunctioning disk later.
When something goes wrong with your hard drive, you have several options on how to proceed. You can take the hard drive to a professional hard drive repair shop and ask them to fix the issue for you. You can also use hard disk repair software and attempt to fix the problem by yourself. Here are some reasons why the do-it-yourself approach is better:
After testing countless Mac disk repair software applications, we were able to narrow them down to just 10. Disk Drill for Mac earned the top spot thanks to its ease of use, excellent data recovery performance, and useful disk repair tools. Overall, Mac users can choose from a wide variety of disk repair tools, many of which are free or offer a trial version.
A bootable macOS (previously, OS X) install disk is a portable device containing all the necessary installation files for a selected version of macOS. Why would you want to create an external boot drive for your Mac?
The Adobe Captivate demonstration below illustrates repair disk permissions using the Disk Utility. For more information about viewing this demo, see Viewing Adobe Captivate Demos in knowledgebase documents.
Besides recovery, Disk Drill is also great for resolving hard drive errors. The app also comes with dozens of free tools such as HDD cleanup, data backup, disk monitoring, duplicate cleaner, and more. This makes it a great all-in-one solution for all your disk problems.
Proper maintenance is the key to keeping your disk in top shape, and you will hardly find an app that is as packed with features as Drive Genius. The tools are separated into 3 groups: Protect, Clean Up, and Speed Up.
TechTool Pro 15 is the newest diagnostic and repair suite from Micromat. It has 20+ tools to speed up and protect your Mac, many of which are disk related. These include complete hardware and drive testing, disk speed measurement, and HDD repair.
You can also even create your own Lion boot install DVD or use a USB drive with the package you download from the Mac App Store. Admittedly that is not an official way to do things, but it does work to install a fresh clean version of Lion on any hard drive as well.
Sorry, just correctionUse the disk utility and make 2 partitions one 10.9 GB and the other will be as it is, no need for it, then you format the 10.9 partition as a mac jornal and in the options you must use the GUID option and then format it.10.9 GB not 1.9 GB
The best approach surely is to download Lion. Take a backup of it somewhere and then you have it. Create a bootable version of it so you can then completly overwrite your HDD and wipe SL and install Lion?!?
Does anybody know if the Lion download from the MAS is just a disk image (.img) like Xcode 4? Can I copy this to a shared location on my network to prevent having to re-download in case I need to reinstall?
This is great info, I think people are annoyed that Lion installs FROM Snow Leopard though, everyone seems stuck on the idea of having physical hardware to boot from. I highly doubt Apple will stop including recovery disks with new Mac purchases though, so I think the complaints are much to say about nothing.
OnyX is a multifunction utility that you can use to verify the structure of the system files; run miscellaneous maintenance and cleaning tasks; configure parameters in the Finder, Dock, Safari, and some Apple applications; delete caches; remove certain problematic folders and files; rebuild various databases and indexes; and more.OnyX is a reliable application which provides a clean interface to many tasks that would otherwise require complex commands to be typed using a command-line interface.IMPORTANT:There is a specific version of OnyX for each major version of the operating system.Use the correct version, and don't try to use a version intended for an earlier operating system.
Before you begin, you will need to create a bootable flash drive. This requires having access to a Mac currently running High Sierra, in order to download the 7.7 GB High Sierra file in the App Store. You will also need an empty flash drive that can fit 5.4 GB.
GrandPerspective is a small utility application for macOS that graphically shows the disk usage within a file system.It can help you to manage your disk, as you can easily spot which files and folders take up the most space.It uses a so called tree map for visualisation. Each file is shown as a rectangle with an area proportional to the file's size.Files in the same folder appear together, but their placement is otherwise arbitrary.
14 Jan 2023 GrandPerspective 3.0.1 has been released and is available for download from Sourceforge.It fixes just one bug. It was not possible to load scan data files larger than 4 GB.Now it is, but it is still not recommended though as it is slow.
10 Jul 2022 GrandPerspective 3.0.0 has been released and is available for download from Sourceforge and the App Store.Most notably, it includes the ability to quickly refresh a view.This functionality is very similar to re-scan but is much faster;refresh only re-scans the contents of folder that have changed since the previous scan.Implementing this functionality triggered significant changes to the implementation, which is the reason for bumping the major version.
17 Apr 2022 GrandPerspective 2.6.3 has been released and is available for download from Sourceforge.It includes various fixes and one minor feature improvement: the progress panel shows folders where significant time is spent.
3 Feb 2022 GrandPerspective 2.6.2 has been released and is available for download from Sourceforge and the App Store.It fixes the known issue (unwanted black pixels during zoom-in animation) introduced in Version 2.6.1. 2b1af7f3a8