2015 Macbook Pro What is my Total Storage?

satssd wrote:

sat2015MBP ~ % diskutil list

/dev/disk0 (internal, physical):

  #:            TYPE NAME          SIZE    IDENTIFIER

  0:   GUID_partition_scheme            *251.0 GB  disk0

  1:            EFI ⁨EFI⁩           209.7 MB  disk0s1

  2:         Apple_APFS ⁨Container disk1⁩     250.8 GB  disk0s2

/dev/disk1 (synthesized):

  #:            TYPE NAME          SIZE    IDENTIFIER

  0:   APFS Container Scheme -           +250.8 GB  disk1

                 Physical Store disk0s2

  1:        APFS Volume ⁨sat2015_⁩        933.9 KB  disk1s1

  2:        APFS Volume ⁨Preboot⁩         315.6 MB  disk1s2

  3:        APFS Volume ⁨Recovery⁩        1.1 GB   disk1s3

  4:        APFS Volume ⁨VM⁩           1.1 GB   disk1s4

  5:        APFS Volume ⁨sat2015__⁩        18.5 GB  disk1s5

  6:        APFS Volume ⁨sat2015 - Data⁩     9.7 GB   disk1s7

  7:        APFS Volume ⁨sat2015⁩         15.1 GB  disk1s8

  8:       APFS Snapshot ⁨com.apple.os.update-...⁩ 15.1 GB  disk1s8s1

Is it 256 or 512?

250 GB some goes towards formatting.

In the APFS all Volumes share space with the Container...

You can see from the Finder side bar clicking the Macintosh HD Command i opens the info pane:

satssd wrote:

I tried this method, couldn't display for some odd reason (gremlins, maybe). From above diskutil, is it 256 or 512, please.

256