Table of Contents
Quick Links
What Is System Data in iPhone or iPad Storage?
How to Free Up System Data on Your iPhone or iPad Storage
Clear Safari History
Force Restart Your iOS Device
Reinstall Apps
Change the Messages App Settings
カメラ アプリで ProRes を有効にする
iOS デバイスのバックアップと復元
Home Mobile Tutorial iPhone What Is \'System Data\' Storage on an iPhone or iPad?

What Is \'System Data\' Storage on an iPhone or iPad?

Aug 09, 2024 am 09:49 AM

  • What Is System Data in iPhone or iPad Storage?
  • How to Free Up System Data on Your iPhone or iPad Storage
Are you running out of space on your iOS device? What if I told you that you actually have a large amount of space on your device that you can clear to free up storage? Don't worry; I won't ask you to delete apps or videos permanently. Instead, you'll need to clear the System Data to free up some space on your iOS device.

What Is System Data in iPhone or iPad Storage?

Before I explain what System Data storage is, you should first check how much storage it's actually taking up on your iOS device. To do this, open the Settings app and go to General > iPhone Storage.

At the bottom of the iPhone Storage screen, you'll see the System Data option and the amount of data it's using. You'll also see the iOS option, which includes data related to the operating system and other stuff needed for the device to work properly.

What Is

Earlier, System Data was called "Other" data, but Apple renamed it to clarify what it represents. System Data is the total amount of cached data stored on your iPhone or iPad. This data is a combination of each app's downloaded data, your Safari browser cache, the Mail app's cache, downloaded emails and attachments, Safari Reading List pages, notes, voice memos, and backup files.

Essentially, it's a catch-all term for temporary storage used by the operating system.

How to Free Up System Data on Your iPhone or iPad Storage

You can't completely erase System Data on your iPhone or iPad, but you can reduce its size by following these methods.

Clear Safari History

The first thing you should do is clear your Safari cache data. To do this, open the Settings app, then go to Safari > Clear History and Website Data. Then, select the "All History" option and turn on the "Close All Tabs" toggle. Be aware that you might have to log in to websites again after deleting your history, so make sure you have your important passwords saved. Tap "Clear History."

What Is

Force Restart Your iOS Device

Force restarting your iOS device can help clear out a significant amount of System Data. To do this, press the volume up and down buttons. Then, press and hold the "Side" button until the Apple logo appears on the screen. Your iOS device will now force restart. After restarting, check the difference in System Data.

Reinstall Apps

Unlike Android, you don't have the direct option to clear cache data for individual apps on iOS devices. Because of this, apps installed on your device accumulate cache data that isn't always necessary. The only way to remove this unwanted data is to reinstall the applications.

You can delete an app under Settings > General > iPhone Storage or by tapping and holding an app's icon, then tapping "Remove App" followed by "Delete App."

Reinstall the applications (by finding them in the App Store) and then check the difference in the System Data. You should focus on major apps like Instagram and YouTube, which tend to build up a lot of cache data from the content you've watched on those platforms.

Change the Messages App Settings

By default, the Messages app on your iOS device keeps all the messages you've received forever. This means a message you got two years ago is still on your phone. While a single message is tiny, thousands of them can take up a huge chunk of your device's storage. That's why you should set up the Messages app to automatically delete messages you've sent or received after a certain number of days. This will help free up space.

Open the Settings app, go to Messages > Keep Messages, and then select the "1 Year" option. After that, any message you received over a year ago will be automatically deleted from your phone.

What Is

カメラ アプリで ProRes を有効にする

iPhone Pro モデルをお持ちの場合は、カメラ アプリで ProRes 機能を有効にしてシステム データの一部を解放できます。これを行うには、カメラ アプリを開き、ビデオ タブまでスワイプします。次に、上部にある「ProRes」オプションをタップすると、リソースの解放メッセージが表示されます。

What Is

完了すると、システムデータのサイズが減少していることがわかります。実際に何が起こるかというと、ProRes 機能は記録するために大量のストレージを必要とし、十分なスペースがあることを確認するために、iPhone はシステムデータから不要なデータを自動的に消去します。 iPhone のシステムデータ内の不要なデータがなくなるまで、このプロセスを複数回繰り返すことができます。

iOS デバイスのバックアップと復元

上記の方法はシステム データ ストレージを減らすのに役立ちますが、それでも大きな違いが見られない場合があります。これは、これらの方法ではクリアできない破損したキャッシュ ファイルがシステム データに含まれていることが原因である可能性があります。この場合、唯一の選択肢は、デバイス上のすべてを消去して、最初からやり直すことです。

最悪の場合、バックアップからデバイスを復元すると、消去しようとしていたシステム データが戻ってくる可能性があります。この問題が発生した場合は、バックアップを復元せずに、デバイスのデータを消去することをお勧めします。デバイスを最初からセットアップするだけです。電子メールなど、オンラインに保存されているデータは影響を受けないため、これを行った後、重要なデータのほとんどを回復できます。


8 ~ 10 GB のシステム データがあるのはまったく正常であり、心配する必要はありません。ただし、20 ~ 25 GB など、総ストレージのかなりの割合を占めている場合は、上記の方法を試して容量を縮小する必要があります。

これらの方法では、システム データのサイズが永続的に削減されるわけではないことに注意してください。これは iPhone の一時ファイルのキャッシュであり、そのサイズは iOS デバイスを使用するにつれて自然に増減します。これは、買えるだけ多くの iPhone ストレージを購入すべき多くの理由の 1 つです。

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