User profile for user: hogscape
hogscape Author
User level: Level 1
10 points

Container Disc3 and APPLE SSD AP0512Q Media

Hi folks,


I know this question has been asked before but I haven't seen an answer yet.


My Mac (About this Mac)

MacBook Pro (13-inch, M1, 2020)

Chip Apple M1

Memory 8 GB


Since October 8, 2021, Disc Doctor now reports internal storage in an unexpected manner:


APPLE SSD AP0512Q Media

> Container Disc3

> Macintosh SSD (greyed out)

> com.apple.os.update

Data

Get Info listings for each entry below


Previously the report displayed only 2 tiers of which Macintosh SSD was the second and not greyed out.


I'd just like to know what this means, why the change and is there an issue I need to worry about given this change has only occurred in the last 3 days?


Many thanks


Mike


APPLE SSD AP0512Q Media

Volume name : Macintosh SSD

Volume type : APFS System Snapshot

BSD device node : disk3s1s1

Mount point : /

System : macOS 11.6 (20G165)

File system : APFS (Encrypted)

Connection : Apple Fabric

Device tree path : IODeviceTree:/arm-io@10F00000/ans@77400000/iop-ans-nub/AppleANS3NVMeController

Writable : No

Is case-sensitive : No

File system UUID : 0D960DD2-3873-464F-AF2D-80ADA4535819

Volume capacity : 494,384,795,648

Available space (Purgeable + Free) : 211,693,439,648

Purgeable space : 37,942,868,640

Free space : 173,750,571,008

Used space : 15,334,465,536

File count : 426,774

Owners enabled : No

Is encrypted : Yes

System Integrity Protection supported : Yes

Can be verified : Yes

Can be repaired : Yes

Bootable : Yes

Journalled : No

Media name :

Media type : Generic

Ejectable : No

Solid state : Yes

S.M.A.R.T. status : Not Supported


Container Disc3

Volume type : APFS Container

BSD device node : disk3

Connection : Apple Fabric

Device tree path : IODeviceTree:/arm-io@10F00000/ans@77400000/iop-ans-nub/AppleANS3NVMeController

Writable : No

Is case-sensitive : No

Volume capacity : 494,384,795,648

Available space (Purgeable + Free) : 173,746,892,800

Purgeable space : 0

Free space : 173,746,892,800

Used space : 320,637,902,848

Owners enabled : No

Is encrypted : No

Can be verified : Yes

Can be repaired : Yes

Bootable : No

Journalled : No

Disk number : 3

Media name : AppleAPFSMedia

Media type : Generic

Ejectable : No

Solid state : Yes

S.M.A.R.T. status : Verified


Macintosh SSD

Volume name : Macintosh SSD

Volume type : APFS System Volume

BSD device node : disk3s1

File system : APFS (Encrypted)

Connection : Apple Fabric

Device tree path : IODeviceTree:/arm-io@10F00000/ans@77400000/iop-ans-nub/AppleANS3NVMeController

Writable : No

Is case-sensitive : No

File system UUID : 0D960DD2-3873-464F-AF2D-80ADA4535819

Volume capacity : 494,384,795,648

Owners enabled : No

Is encrypted : Yes

Can be verified : Yes

Can be repaired : Yes

Bootable : No

Journalled : No

Disk number : 3

Partition number : 1

Media name :

Media type : Generic

Ejectable : No

Solid state : Yes

S.M.A.R.T. status : Not Supported

Parent disks : disk3


com.apple.os.update

Volume name : Macintosh SSD

Volume type : APFS System Snapshot

BSD device node : disk3s1s1

Mount point : /

System : macOS 11.6 (20G165)

File system : APFS (Encrypted)

Connection : Apple Fabric

Device tree path : IODeviceTree:/arm-io@10F00000/ans@77400000/iop-ans-nub/AppleANS3NVMeController

Writable : No

Is case-sensitive : No

File system UUID : 0D960DD2-3873-464F-AF2D-80ADA4535819

Volume capacity : 494,384,795,648

Available space (Purgeable + Free) : 211,691,465,376

Purgeable space : 37,942,868,640

Free space : 173,748,596,736

Used space : 15,334,465,536

File count : 426,774

Owners enabled : No

Is encrypted : Yes

System Integrity Protection supported : Yes

Can be verified : Yes

Can be repaired : Yes

Bootable : Yes

Journalled : No

Media name :

Media type : Generic

Ejectable : No

Solid state : Yes

S.M.A.R.T. status : Not Supported


Data

Volume name : Data

Volume type : APFS Data Volume

BSD device node : disk3s5

Mount point : /System/Volumes/Data

File system : APFS (Encrypted)

Connection : Apple Fabric

Device tree path : IODeviceTree:/arm-io@10F00000/ans@77400000/iop-ans-nub/AppleANS3NVMeController

Writable : Yes

Is case-sensitive : No

File system UUID : E3886756-B1A1-411A-858C-FF9A070B3A60

Volume capacity : 494,384,795,648

Available space (Purgeable + Free) : 211,688,053,408

Purgeable space : 37,942,868,640

Free space : 173,745,184,768

Used space : 301,127,766,016

File count : 658,295

Owners enabled : Yes

Is encrypted : Yes

System Integrity Protection supported : Yes

Can be verified : Yes

Can be repaired : Yes

Bootable : No

Journalled : No

Disk number : 3

Partition number : 5

Media name :

Media type : Generic

Ejectable : No

Solid state : Yes

S.M.A.R.T. status : Not Supported

Parent disks : disk3





MacBook Pro 13″, macOS 11.6

Posted on Oct 11, 2021 12:39 AM

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10 replies
User profile for user: leroydouglas
leroydouglas
User level: Level 10
199,596 points

Oct 11, 2021 9:19 AM in response to hogscape

hogscape wrote:
Container Disc3 and APPLE SSD AP0512Q Media

Thanks for the comments. Screenshots of each volume below...I don't understand some of the reports.

Since October 8, 2021, Disc Doctor now reports internal storage in an unexpected manner:
Here's my question from the post above:

"I'd just like to know what this means, why the change and is there an issue I need to worry about given this change has only occurred in the last 3 days?"



Not advised to use third party cleaner.s/optimizes/ Disc Doctor. If you have an issue—then state what is the issue—why Disc Doctor?


I see no issue. The number scheme is relative...maybe your Disc Doctor has altered this.


It looks like you possibly reinstalled the macOS at some point from Recovery(?) or some such... It is obvious you changed the name of your drive from the default(s).


You get a better look from the Terminal.app, copy and paste:

diskutil list internal




ref: About the read-only system volume in macOS Catalina - Apple ...

https://support.apple.com/en-us/HT210650




Big Sur has gone one step further adding a “snapshot” of the current system for its (SSV) Signed System Volume, as you see in the list. This is the new normal as well. This would be the 'Macintosh HD'


Big Sur use this snapshot of the current system for its SSL (Signed System Volume ) w/ strong cryptographic protections to store system content .


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User profile for user: ku4hx
ku4hx
User level: Level 7
23,694 points

Oct 11, 2021 5:50 AM in response to hogscape

What problem are you having specifically?


A screen shot of what you're seeing in disk utility would be helpful. That will tell exactly what's associated with your internal drive.


The bare minimum you should see is Macintosh HD (OS) and Macintosh HD - Data (your data). If those are present, and your machine is operating as expected, chances are all is well.


There can be other stuff, but a picture is far easier to digest than a couple of pages of data.



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User profile for user: hogscape
hogscape Author
User level: Level 1
10 points

Oct 11, 2021 9:28 AM in response to ku4hx

I haven't made any changes to the partitions or added or removed any; there's been no changed since I bought my Mac in Dec. 2020.. The odd new volumes with inconsistent disc usage reports only appeared on Friday, well, not strictly true, I only noticed it on Friday.

Yes, I'm confused by the change and because it wasn't instigated by me it's also worrying.

The desktop picture vanished (replaced with complete black) but that's the only thing I've noticed performance wise (I don't feel that's a big issued). Could it be a virus?

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User profile for user: ku4hx
ku4hx
User level: Level 7
23,694 points

Oct 11, 2021 9:40 AM in response to hogscape

No, not a virus, Macs get Malware but not viruses.


This is going to be an odd question I guess, but how do you know it changed? In other words, why did you have cause to look when you first got the machine; did you suspect a disk problem? Or was it previously owned and you were trying to ascertain what the previous owner may have done?


Just trying to pin down what happened as things change for a reason but the reason may be obscured.

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User profile for user: hogscape
hogscape Author
User level: Level 1
10 points

Oct 11, 2021 9:42 AM in response to ku4hx

Thanks again,

I formatted a USB stick on Thursday (or thereabouts), all looked as it had since the Mac was new. On Friday I had a CD inserted in an external drive and checked Disc Doctor to see if the DVD drive was worfoundking (I hadn't been able to import to Music but subsequently learned the drive wasn't plugged in correctly).

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User profile for user: hogscape
hogscape Author
User level: Level 1
10 points

Oct 11, 2021 4:46 PM in response to ku4hx

Isn't the important thing that on day "x" it was exactly as I remembered it and on day "y" it was totally different displaying more volumes with contradictory space remaining? But as for "how do I know", I suppose as a Mac user of over 21 years, I'm familiar with would should be there and importantly, what was there until very recently. I don't think I can remember a time when disc doctor and about this Mac reported different space available values.

Very odd.

Ta

Mike

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