Disk Utility User Guide
Disk Utility can fix certain disk problems—for example, multiple apps quit unexpectedly, a file is corrupted, an external device doesn’t work properly, or your computer won’t start up. Disk Utility can’t detect or repair all problems that a disk may have.
If you run First Aid on a disk, Disk Utility checks the partition maps on the disk and performs some additional checks, and then checks each volume. If you run First Aid on a volume, Disk Utility verifies all the contents of that volume only.
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- Click on the “Erase” button to format the SSD on Mac. As the following pop-up window would be launched, you can select the file format and the partition scheme for the drive. Click on the “Erase” button to confirm your choice and wait as the SSD drive would be formatted. Format SSD for Mac. While formatting an SSD on Mac, just.
By default, Mac OS, unlike Windows, doesn't automatically enable the TRIM command for a self-installed SSD. (If your Mac comes with an SSD, TRIM will already be enabled.) (If your Mac comes with. The closest alternative to a Thunderbolt 3 drive is a USB-C version, as they also.
In the Disk Utility app on your Mac, choose View > Show All Devices.
Note: If you’re checking your startup disk or startup volume, restart your computer in macOS Recovery, select Disk Utility in the macOS Utilities window, then click Continue. If you check your startup volume (Macintosh HD), make sure you also check your data volume (Macintosh HD - Data).
In the sidebar, select a disk or volume, then click the First Aid button .
If Disk Utility tells you the disk is about to fail, back up your data and replace the disk—you can’t repair it. Otherwise, continue to the next step.
Click Run, then click Continue.
If Disk Utility reports that the disk appears to be OK or has been repaired, you’re done. You can click Show Details to see more information about the repairs. Otherwise, you may need to do one of the following.
If Disk Utility reports “overlapped extent allocation” errors, two or more files occupy the same space on your disk, and at least one of them is likely to be corrupted. You need to check each file in the list of affected files. Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk.
If you can replace a file or re-create it, delete it.
If it contains information you need, open it and examine its data to make sure it hasn’t been corrupted.
If Disk Utility can’t repair your disk, or you receive a report that the First Aid process failed, try to repair the disk or partition again. If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall macOS, then restore your backed-up data.
If your Mac has a Fusion Drive and you see a flashing question mark or alert, see the troubleshooting section of the Apple Support article About Fusion Drive, a storage option for some Mac computers.
If you continue to have problems with your disk or it can’t be repaired, it may be physically damaged and need to be replaced. For information about servicing your Mac, see Find out how to service or repair your Mac.
Ssd Hard Disk For Mac
Ssd Drive For Mac
While there are many reasons to be in love with your Mac computer, one of our favorite reasons by far is the life expectancy. From the to the chip-based storage to their titanium casing: Mac computers are made to last. No computer is perfect though, and it’s a well-known solution to upgrade any computer that isn’t working to par with its expected performance. We’ve explained before when to upgrade RAM memory in a Mac; now, we’re here to cover some details needed in order to consider upgrading your Mac’s hard drive.
If you think it’s only to do with RAM (or working memory), you’re missing out on a large component of your computer’s behavior. Whilst memory is an extremely important part of your computer’s potential to run multiple programs at once, your hard drive is in control of writing and storing permanent data.
HDD vs. SSD
In the most basic sense, a HDD, or Hard Disk Drive, is a spinning disk drive. This mechanism is an older version of the hard drive. The newer version of the hard drive is the SSD, or Solid-state drive. It is has a motionless mechanism using NAND flash based memory.
The HDD is the most common type of hard drive to be found in a Mac computer. Its many moving parts are also more prone to failure. It’s built with a head attached to an arm that reads/writes onto a stack of spinning discs using magnetism. Its performance is measured in RPM, or the discs’ rotations per minute. How fast your hard drive can spin determines how fast your hard drive can read and write data.
The SSD is the newer, faster hard drive. As mentioned earlier, SSDs save information using NAND flash memory. This kind of technology is also used in USB drives or “flash” drives. Data is saved to directly to cells increasing the speed from HDD technology by 5x. Also, unlike with HDDs, memory stored on SSDs are non-volatile. This means that your information is stored even when your computer isn’t running.
If your computer currently has a HDD, an upgrade to an SSD will do wonders for your device’s performance. With a more direct process, SSDs are much faster. Apps will load within one or two bounces. Also, with less working parts, it is less likely to fail and your computer’s battery life will be longer because of the lower power consumption.
Which one does your Mac have?
Most older Macs come originally with HDD. MacBook Pro Retinas, most MacBook Airs, and certain iMac computers come with an SSD. It’s important to note that non-retina MacBook Pros have the traditional spinning drive. Also, the first generation of MacBook Airs came with either.
An alternative that Apple offers is something called a Fusion drive. They contain both a spinning drive and an SSD. With this combination, the OS and your documents get stored on the SSD. As you use your machine more often, it figures out to move files you never use, presumably less important items, to the spinning drive.
If you’re still unsure about what drive your computer has, you can find out under “System Information.” Search “System Information” in your finder, and under “Hardware,” “Storage,” and “Physical Drive Media Name,” it will state what type you have.
Ready to upgrade?
If you think you need to replace your hard drive to a newer SSD, you can bring your Mac into Mac Enthusiasts. We will look into your machine’s capacity and replace it for you with the right hard drive for your Mac. If you have any more questions about this topic feel free to call us at (800)448-1892 or drop by our store at 10600 W. Pico Blvd. Los Angeles, CA 90064.
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