why my Mojave 10.14 hard drive partion showing "Shared by 4 Volumes"

[akgskg]

Why my hard drive partition of 170.13 GB where I installed OSX Mojave 10.14 is showing “Shared by 4 volumes” just below the 170.13 GB. What does it mean? Kindly see the attached screenshot. When I ran First Aid with Disk Utility it took very long time to process the volume and stuck at “Performing fsck_spfs-n-I-x/dev/rdisk1s1. Please see the jpg picture also. It took more than 15 minutes to complete the task. When I again ran the First Aid it again took almost the same time. Running First Aid is not very quick in this partition. Why it is happening? Are there any defects in installing Mojave in this hard drive partition?

 

[guillelopez]

I think is related the way apfs works. Mine shows the same.
If you use "diskutil list" on terminal, you can see that your drive should be divided in:

- 1: EFI
- 2: Apple_APFS (that is container mounted as another disk)

That another disk should be divided in four APFS volumes, one for your system, next is Preboot, next Recovery and next VM

 

[akgskg]

When I start up my computer I see the following:

1. Boot Windows EFI from EFI.
2. Boot FileVault Prebooter from Preboot. What does it do? Can I operate FileVault in hackintosh?
Are there any disadvantages if I “turn on” FileVault?
3. Boot MacOs Install Prebooter from Preboot. What does it do? Why one will use this option?
4. Boot macOS from Mojave . This is my hard drive partition for Mojave and I open OSX
from here.
5. Boot Recovery from Recovery. This is for recovering Mojave operating system.

I have dual booted my Desktop computer with Mojave 10.14 hackintosh and Windows 10 Pro.

 

[akgskg]

Please respond to my queries.