Disk Utility Mac Download
An important application in your maintenance toolbox is the Disk Utility, which is located in the Utilities folder within your Applications folder. When you first run this program, it looks something like Figure 1, displaying all the physical disks and volumes on your system.
System Disk Utility 2.6.2 for Mac OS X Server 1.2 is a Mac OS program that allows you to select which hard disk your computer will start up from.
Figure 1: The familiar face of Tiger’s Disk Utility.
The Disk Utility application has its own toolbar that you can toggle on and off. Click the lozenge-shaped button at the upper-right corner of the window to display or hide the toolbar.
Displaying the goods on your disks
The volume tree structure on the left of the Disk Utility window lists both the physical disks and the partitions that you’ve set up. A partition is nothing more than another word for volume, which is the formatted section of a disk that contains data. A single physical hard drive can contain several partitions. The information display at the bottom of the Disk Utility window contains data about both the volumes and the partitions on your hard drive.
To illustrate: Clicking a drive labeled at the top of the tree displays a description of the drive itself, including its total capacity, interface (connection type), and whether the drive is internal or external, as shown in Figure 2.
Figure 2: Display data on a physical drive.
Clicking the tree entry for a partition, however, displays information about the type of formatting, the total capacity of the partition and how much of that is used, and the number of files and folders stored on the partition (see Figure 3).
Figure 3: Display data on a volume.
Playing doctor with First Aid
From the First Aid pane, Disk Utility can be used to verify (or check) any disk (well, almost any disk) for errors, as well as repair any errors that it finds. Here are the two exceptions when the buttons are disabled:
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- The start-up disk: Disk Utility can’t verify or repair the start-up disk — that’s Mac talk for the boot drive that contains the Mac OS X system that you’re using at the moment — which makes sense if you think about it because that drive is currently being used!
- If you have multiple operating systems on multiple disks, you can boot from another Mac OS X installation on another drive to check your current start-up disk. Or, you can boot your system from the original Mac OS X installation CD and run Disk Utility from the Installation menu.
- Your start-up disk is automatically verified and repaired (if necessary) during the boot procedure, so you really don’t need to worry about checking the start-up disk.
- Write-protected disks: Although you can use the Disk Utility to verify CDs, DVDs, and write-protected removable disk drives (like a write-protected Zip disk), it can’t repair them.
- You also can’t repair a disk that has open files that are currently being used. If you’re running an application from a drive or you’ve opened a document that’s stored on that drive, you won’t be able to repair that drive.
You can also elect to verify and repair permissions (also called privileges) on a disk; these are the read/write. If you can’t save or move a file that you should be able to access, check that drive for permissions problems. Unlike fixing disk errors, you can verify and repair permissions on any volume that contains a Mac OS X installation (whether it was used to boot your Mac or not).
In order to verify or repair, you must be logged in as an admin-level user.
To verify or repair a drive, first select the target volume/partition in the list at the left. To check the contents of the drive and display any errors, click the Verify Disk button. Or, to verify the contents of the drive and fix any problems, click the Repair Disk button. Disk Utility displays any status or error messages in the scrolling list; if you’ve got eagle eyes, you’ll note that the window can be resized so that you can expand it to display more messages. (You can also drag the dot between the left and right panes to expand the list.)
Check your disks once every two or three days. If your Mac is caught by a power failure or Mac OS X locks up, however, it’s a good idea to immediately check disks after you restart your Mac. (Don’t forget that the start-up volume is automatically checked and repaired, if necessary.)
by Shirly Chen, 2017-02-07
Formatting is a prior method to delete all data from local/external hard drive or fix disk error. For Windows users, it is very easy to format a hard drive using built-in quick format feature. However, when a Mac user right-clicks a hard drive on Mac, he can’t see the quick format option. Especially for the new Mac users, it seems difficult to find a solution to format local hard drive or external hard drive under Mac OS. In this article, we will introduce some Mac disk formatting software tools to help Mac users easily and securely format hard drive, USB flash drive, memory card or other device under Mac OS.
Three Useful Disk Formatting Software for Mac
1. Super Eraser for Mac - best Mac Disk Format Software
Super Eraser for Mac is a very powerful tool to permanently erase data from Mac hard drive or storage media. It can easily format hard drives, storage devices and permanently erase all the data on the targeted media. It also can format SSD hard drive and erase data under Mac OS. Free download the best Mac disk formatting software - Super Eraser for Mac.
This mode ‘Wipe Hard Drive’ will help you format a selected hard drive/device and erase all data from it. You just need to select the hard drive you want to format, and then click on 'Wipe Now' button. Then Super Eraser for Mac will help you format and erase the selected hard drive/device. Please note that all the existing data and history data on the selected hard drive will be permanently removed, can’t be recovered by any data recovery software or manual data recovery service.
This Mac hard drive formatting tool also can erase free disk space to permanently erase deleted/lost data on the hard drive. This option is used for erasing deleted files and formatted files on your Mac, without affecting the existing data.
If you are going to sell, donate your Mac/device or just want to completely remove unwanted files and fix disk errors, Super Eraser for Mac is the best Mac disk formatting tool for you. It can help you regain a brand new disk.
Note: formatted data will be permanently lost, can’t be recovered by any software or method.
2. Mac Disk Utility
Note: formatted data can be recovered by data recovery software.
Disk Utility is a built-in app in macOS. When you open this app, it will show all the hard drives and devices on your Mac. You can use the erase function to format a hard drive or device. However, when the hard drive has been erased by Disk Utility, most of the formatted data can be recovered by data recovery software.
3. Start Menu for Mac
Note: formatted data can be recovered by data recovery software.
Start Menu for Mac is an all-in-one Mac manager. It offers a feature – format. You can run it on your Mac, and use it to format external hard drive or device on your Mac. It is the fastest way to format an external hard drive/device under Mac OS.
4. MacClean360
MacClean360 is one of the best disk cleaning and management software for Mac OS. It offers more than 9 tools to help you optimize and manage your Mac computer. The Disk Manager tool is able to list all hard drives and external devices on your Mac. Then you can choose one of the hard drive and format it by click on 'Format' button.
The 4 disk formatting software for Mac above can help you easily format hard drive, USB flash drive, memory card, and other storage media under Mac OS. However, when you format your hard drive with Super Eraser for Mac, all your data will be permanently lost. So please back up your important files before you run Super Eraser for Mac to format your hard drive or other device under Mac OS.
FREE download DoYourData Super Eraser for Mac to help you format hard drive, external hard drive or storage media on Mac.
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Super Eraser for Mac
Permanently and securely erase data from Mac, hard drive or storage device under Mac OS.
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Permanently erase files, folders, data from hard drive and storage media, beyond the scope of data recovery.
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