The problem with fusion drive storage

I tried to set up windows 10 via boot camp .  An error occurred during installation. As a result, my disk is split. Below is the output from terminal

vladislavkamenev@iMac-Vladislav ~ % diskutil list

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB disk0

1: EFI ⁨EFI⁩ 209.7 MB disk0s1

2: Apple_APFS ⁨Container disk2⁩ 121.1 GB disk0s2

/dev/disk1 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *3.0 TB disk1

1: EFI ⁨EFI⁩ 209.7 MB disk1s1

2: Apple_APFS ⁨Container disk2⁩ 2.4 TB disk1s2

3: EFI ⁨NO NAME⁩ 104.9 MB disk1s3

4: EFI ⁨NO NAME⁩ 104.9 MB disk1s4

5: EFI ⁨NO NAME⁩ 104.9 MB disk1s5

6: EFI ⁨NO NAME⁩ 104.9 MB disk1s6

(free space) 554.8 GB -

/dev/disk2 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +2.6 TB disk2

Physical Stores disk0s2, disk1s2

1: APFS Volume ⁨Без названия — данные⁩ 286.4 GB disk2s1

2: APFS Volume ⁨Preboot⁩ 358.1 MB disk2s2

3: APFS Volume ⁨Recovery⁩ 622.1 MB disk2s3

4: APFS Volume ⁨VM⁩ 1.1 MB disk2s4

5: APFS Volume ⁨Без названия⁩ 15.3 GB disk2s5

6: APFS Snapshot ⁨com.apple.os.update-...⁩ 15.3 GB disk2s5s1

vladislavkamenev@iMac-Vladislav ~ %

iMac 27″, macOS 11.3

Posted on Jun 3, 2021 8:37 AM

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What is the normal actual storage capacity for a 1TB fusion drive? Hi After a failed windows installation using the bootcamp assistant, I have set the partition back to just one again. Now I would like to try to install again, but it seems to me like I'm missing a lot of space after this. Not entirely sure what is normal here, but I have a 1TB fusion drive (2018 iMac). It shows correctly under Fusion drive in Disk Utility: However, when I click into the only child drive, it shows only 774GB. I understand that the system takes some space too, but I was just a bit surprised that it takes as much as 226 GB. Is this normal? If it is, then there is no issue. I just want to make sure there is no "lost disk space" floating around after the failed Bootcamp partitioning. This is what diskutil list gives me: /dev/disk0 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *1.0 TB disk0 1: EFI EFI 209.7 MB disk0s1 2: Apple_APFS Container disk2 746.3 GB disk0s2 /dev/disk1 (internal, physical): #: TYPE NAME SIZE IDENTIFIER 0: GUID_partition_scheme *28.0 GB disk1 1: EFI EFI 314.6 MB disk1s1 2: Apple_APFS Container disk2 27.7 GB disk1s2 /dev/disk2 (synthesized): #: TYPE NAME SIZE IDENTIFIER 0: APFS Container Scheme - +774.0 GB disk2 Physical Stores disk1s2, disk0s2 1: APFS Volume Macintosh HD - Data 385.9 GB disk2s1 2: APFS Volume Preboot 83.0 MB disk2s2 3: APFS Volume Recovery 528.5 MB disk2s3 4: APFS Volume VM 2.2 GB disk2s4 5: APFS Volume Macintosh HD 11.0 GB disk2s5 (or as image: ) Any qualified feedback appreciated.
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1 reply

Loner T

Level 9

59,536 points

Jun 3, 2021 10:51 AM in response to VladislavKam

You seem to have external storage connected to the Mac, when installing Windows. Disconnect all external storage during Windows installation, which can be connected after Windows is fully installed.

To get your disk space back, run (assuming the 3TB disk stays disk1)

diskutil eraseVolume free free disk1s6

diskutil eraseVolume free free disk1s5

diskutil eraseVolume free free disk1s4

diskutil eraseVolume free free disk1s3

diskutil apfs resizeContainer disk2 0g

and post the output.

If you need install Windows, reset SMC and NVRAM, before your next attempt.

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The problem with fusion drive storage