Как узнать, установлен ли на Mac SSD или HDD
Как узнать, установлен ли на моем Mac SSD или жесткий диск, не открывая буквально мой Mac?
PS. Есть ли способ узнать это из Дисковой утилиты?
- Меню Apple -> Об этом Mac -> Системный отчет
- Выберите Storage в разделе Hardware.
- Выберите «Macintosh HD» сверху

В качестве альтернативы вы можете запустить system_profiler SPSerialATADataType или system_profiler SPStorageDataType в Терминале, который более или менее дает вам ту же информацию
Меню Apple -> Об этом Mac -> Системный отчет -> Оборудование -> SATA / SATA Express
Для моего MacBook Pro (начало 2015 года) здесь отображалось дерево устройств Serial-ATA, из которого я смог получить номер модели моего SSD. Этот связанный вопрос, Как получить серийный номер с жестких дисков Mac? может помочь, если вы думаете, что у вас есть жесткий диск.
Macintosh HD vs Macintosh HD Data: The Differences
Updated by Justin Kenny on 2022-06-10
Table of Contents
Macintosh HD and Macintosh HD — Data are two volumes in Disk Utility if you’ve upgraded to macOS 10.15 Catalina or later on your Mac and have used Disk Utility. Some Macs may also display the volumes macOS and macOS — Data.
In order to keep the macOS operating system safe, this segregation separates user data from system files. In this post, we’ll explain what Macintosh HD and Macintosh HD — Data are, as well as the differences between the two. When you reinstall or downgrade macOS, you’ll know which one to delete.
What Is Macintosh HD?
Your MacBook’s operating system and system files are stored on the Macintosh HD drive. This disk may seem greyed out when you attempt to remove files from it. There is no way to update or get rid of the data on this disk because it includes system information that Apple does not want you to modify or change.

In the event that these files are deleted or altered, the MacBook will be unable to boot, and you will be forced to reinstall macOS from scratch. For security reasons, Macintosh HD drives cannot be formatted to use any other system file format except APFS or APFS (Encrypted).
What Is Macintosh HD Data?
Like the Macintosh HD drive, this drive holds all of the user data saved or stored on the Mac, including images, movies, and documents that you have saved or stored on the Mac. Users have read/write access to this disk, which means they may remove, destroy, or change any stored files.
No system files will be affected by removing data from this disk; therefore, it will not disrupt the MacBook’s booting process. This drive’s system format is also APFS or APFS (Encrypted), and unlike the HD drive in a Macintosh computer, it cannot be converted to the format of any other file system.
Comparison Of Macintosh HD To HD — Data
It’s important to note that the contents of the files on Macintosh HD vs. Macintosh HD — Data are different. The Mac system files and programs are loaded into Macintosh HD volume, while personal data is stored in Macintosh HD — Data volume.
In addition, in contrast to read-only Macintosh hard drive volumes, complete read-and-write access is provided by the Macintosh HD — Data volume. There is a connection between the two volumes, even though they perform distinct functions. When viewed in the Finder, they appear as a single integrated Macintosh HD volume.

Which Is The Best Drive To Erase Data From Macintosh HD Vs.
Macintosh HD — Data? To achieve your goal, you must know which volume you should delete or wipe clean. This section explains why erasing the selected volumes on a Mac is a good idea.
Mac OS reinstallation
Macintosh HD holds all the system programs, data, and macOS that are installed on the computer. A separate volume has been created on this disk to protect the contents from accidental overwriting by the operating system. Getting into macOS recovery mode is the first step in the process of reinstalling macOS.
This entails wiping the Macintosh HD disk clean of any and all system data. Macintosh HD is wiped entirely, freeing up the space needed to install macOS while creating a secure and reliable environment for installing the new operating system.
If you try to install the newest macOS without first wiping the Macintosh HD drive, you may encounter installation issues and difficulties.
Downgrading macOS
If the most recent version of macOS that you have installed on your computer is giving you trouble or acting strangely, you might try rolling back to an older version of macOS to resolve the problem.
Both the Macintosh HD and the Macintosh HD Data volumes have to be deleted when upgrading the macOS. As for the rationale for wiping the Macintosh HD Data disk, the system will build a new Macintosh HD Data folder to save all user data when upgrading to an earlier version of macOS.
A second drive with the name «Macintosh HD — Data» will be created if you don’t remove the first. If you have two disks with the same title on your Mac, you might run into many issues.
As a result, prior to erasing the contents of the Macintosh HD — Data drive to perform a macOS downgrade, it is strongly recommended that a backup be created of all of the data that is currently saved there.
Conclusion
This article effectively explained the differences between your MacBook’s Macintosh HD and Macintosh HD — Data storage volumes. Don’t forget to follow the advice in this article while reinstalling or downgrading your Mac’s operating system.
If you’ve read this far, we hope you’ve learned all you need to know about Macintosh HD — Data volumes and Macintosh HD.
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Written & Updated by Justin Kenny
Justin Kenny is a writer & editor of DoYourData. He joined DoYourData in 2016 and focuses on writing articles about Windows data recovery, Mac data recovery, external device data recovery, hard drive clone, data erasure, Mac cleanup, computer issue fixes, etc. He is a super fan of Apple devices and is big on testing new digital device and system utility software.
What is Macintosh HD? An Overview
Macintosh HD is the default name for the hard drive on Mac models. This is where the system and related support files are housed. This is also called your startup disk. This is where macOS is stored. Your macOS runs on the Macintosh HD volume.

It is easy to be confused about what exactly Macintosh HD is. There are a few different places you may see Macintosh HD, including on your desktop, in Finder, and in Disk Utility. What Macintosh HD means depends on the context.
What is Macintosh HD?
On your desktop or in Finder
When you click and open the Macintosh HD drive, you will notice the following folders (if you do not know how to access Macintosh HD, see the next section):
- Applications
- Library
- System
- Users

So basically, on your desktop or in Finder, Macintosh HD just refers to the location where all of your stuff is stored. All of your files (and those for other users) and your applications are here. You can access your files by going to Macintosh HD > Users > [user name] has your personal files.
In Disk Utility

If you open Disk Utility, you may see 3 or 4 things labeled Macintosh HD. The top-level Macintosh HD is a volume group containing the volumes Macintosh HD and Macintosh HD – Data or just Data. You may also see Macintosh HD snapshot under Macintosh HD. We will focus on the two volumes, Macintosh HD and Macintosh HD – Data (or just Data).
The Macintosh HD volume
Macintosh HD is a system volume. It will appear greyed out in Disk Utility. It is a sealed, read-only volume. Users or third-party apps won’t be able to modify this volume. Apple designed this volume like this to protect the integrity of your Mac and Macintosh HD from security breaches and to protect the operating system files from being overwritten.
The Macintosh HD – Data (Data) volume
Macintosh HD – Data is a data volume. Newer macOS versions refer to this as the Data volume. This is where your user account (users’ files and data) is located. This also stores all of the other data. Macintosh HD and Macintosh HD – Data are separated to avoid the accidental modification of critical operating system files.

For typical Mac users, your files or content is either on iCloud or in Macintosh HD -Data. While troubleshooting your Mac, you will run into Macintosh HD or Macintosh HD – Data. For example, if you want to repair your disk with Disk Utility, you will see them. For example, we often say things like, “now choose your startup disk.” That is the Macintosh HD volume.
Where to find Macintosh HD on your desktop or in Finder
You can open it by opening a Finder window, then going to the top menu bar and selecting Go, then Computer. You can also open it by pressing the Shift–Command–C keys together. For easy access, you can add it to your desktop and to the Finder sidebar.
New versions of macOS do not show Macintosh HD on the desktop by default. You can show Macintosh HD on your desktop and in the Finder sidebar. To do this, you will need to change your Finder preferences. Open a Finder window, and click Finder and Settings. Ensure that under the General tab, the Hard disks option is selected. If you want to see Macintosh HD in the sidebar, then click the Sidebar tab and then ensure that Hard disks is checked.

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Dr. Serhat Kurt worked as a Senior Technology Director. He holds a doctoral degree (or doctorate) from the University of Illinois at Urbana / Champaign and a master’s degree from Purdue University. Here is his LinkedIn profile. Email Serhat Kurt.
Macintosh HD vs. Macintosh HD-Data: what are they & what are their differences?
Summary: This post is about what is Macintosh HD and Macintosh HD — Data. And it also tells the difference between Macintosh HD and Macintosh HD — Data.

If you have updated to macOS 10.15 Catalina and later on your Mac, you must have noticed that there are two volumes in Disk Utility, one named Macintosh HD, and another called Macintosh HD — Data. Some Macs may show macOS and macOS — Data these two volumes as well.
But why there are Macintosh HD and Macintosh HD — Data? In this article, we provide a straightforward and informative overview to help you understand what they are and the difference between Macintosh HD and Macintosh HD — Data. And you will know which one you should erase when reinstalling or downgrading macOS.
Table of Contents:
What is Macintosh HD
From macOS 10.15 Catalina, the internal hard drive of a Mac is segregated into two separate entities. One is named Macintosh HD by default.
Macintosh HD is designed to store the operating system files and applications only, which is also called the system volume. Mac users can’t erase, delete, or edit this volume. That’s because Macintosh HD contains the macOS files and the Mac won’t turn on once these files are modified or deleted.
The file system of the Mac hard drive volume defaults as APFS or APFS (Encrypted). It can’t be reformatted to other file systems.


Hackintosh: Everything You Need to Know [Updated in 2022]
This article explains everything you need to know about Hackintosh. How Hackintosh works, its pros and cons, and how to make it are covered too. Read more >>
What is Macintosh HD — Data
Macintosh HD — Data is the other separate entity of the Mac hard drive. The Macintosh HD — Data volume is used to store Mac user files such as documents, videos, photos, and audio. Mac users have read-write access to this volume, which means Mac users can edit and manage files on Macintosh HD — Data directly.
The file system of this volume is also APFS or APFS (Encrypted) by default and can’t be reformatted to other file systems.
Macintosh HD vs. Macintosh HD — Data
The biggest difference between Macintosh HD and Macintosh HD — Data is that the stored file contents differ. Macintosh HD volume loads the Mac system files and scripts while Macintosh HD — Data volume stores personal data on Mac. Besides, unlike read-only Macintosh hard drive volume, Macintosh HD — Data is fitted with full read-write access.
Though the two volumes do different jobs, they have something in common. In the Finder, they show up as one integral Macintosh HD volume.

Which one to erase, Macintosh HD or Macintosh HD — Data
Erase Macintosh HD volume when reinstalling macOS
As aforementioned, Macintosh hard drive volume serves as the system volume on Mac. This volume is completely separated from all other data to prevent accidental overwriting of critical operating system files. So when you reinstall macOS, the very first thing you need to do is to erase your startup disk in macOS Recovery mode. Here erasing the startup disk means erasing the Macintosh HD volume.
Erasing Macintosh HD creates a clean and stable environment for reinstalling macOS. It frees up enough storage space on Macintosh HD for the upcoming operating system. Installation error or failure may occur if you don’t erase it.

Note: If you don’t want to suffer from an unexpected loss of your important files during the reinstallation, then you should take a backup of your data beforehand.
Erase Macintosh HD and Macintosh HD — Data when downgrading macOS
When talking about how to downgrade macOS, it’s a little bit different. You should erase the Macintosh HD volume together with the Macintosh HD — Data volume when downgrading macOS.
Why should you delete the Macintosh HD — Data? Because the Macintosh HD — Data volume of the previous macOS will be retained after downgrading macOS. And system downgrading will also form a new Macintosh HD — Data volume. Then, there are two Macintosh HD — Data volumes, which may arise some problems.