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Fusion Drive info

M

Macintosh1984

macrumors 6502
Original poster
Dec 15, 2012
342
47
Hi!

A 1TB Fusion Drive user can do these command from Terminal:

- diskutil list
- diskutil cs list

and write the result? On diskutil cs list you can obscure UUID.

I did some messing around with partitions and I would like to restore it as the origin.

Thanks!
 
Sure, here you go.

/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *121.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage 121.0 GB disk0s2
3: Apple_Boot Boot OS X 134.2 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage 797.3 GB disk1s2
3: Apple_Boot Recovery HD 650.0 MB disk1s3
4: Microsoft Basic Data BOOTCAMP 202.0 GB disk1s4
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD *909.8 GB disk2


CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group **********
=========================================================
Name: Macintosh HD
Status: Online
Size: 918333972480 B (918.3 GB)
Free Space: 16384 B (16.4 KB)
|
+-< Physical Volume **************
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 120988852224 B (121.0 GB)
|
+-< Physical Volume ************
| ----------------------------------------------------
| Index: 1
| Disk: disk1s2
| Status: Online
| Size: 797345120256 B (797.3 GB)
|
+-> Logical Volume Family ********************
----------------------------------------------------------
Encryption Status: Unlocked
Encryption Type: None
Conversion Status: NoConversion
Conversion Direction: -none-
Has Encrypted Extents: No
Fully Secure: No
Passphrase Required: No
|
+-> Logical Volume ****
---------------------------------------------------
Disk: disk2
Status: Online
Size (Total): 909826490368 B (909.8 GB)
Conversion Progress: -none-
Revertible: No
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
 
Thanks SaSaSushi!

An other user that do not have Bootcamp partitition can post again

- diskutil list
- diskutil cs list

?
 
ok - here

/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *121.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage 121.0 GB disk0s2
3: Apple_Boot Boot OS X 134.2 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage 999.3 GB disk1s2
3: Apple_Boot Recovery HD 650.0 MB disk1s3
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD *1.1 TB disk2

Name: Macintosh HD
Status: Online
Size: 1120333979648 B (1.1 TB)
Free Space: 114688 B (114.7 KB)
|
+-< Physical Volume *
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 120988852224 B (121.0 GB)
|
+-< Physical Volume *
| ----------------------------------------------------
| Index: 1
| Disk: disk1s2
| Status: Online
| Size: 999345127424 B (999.3 GB)
|
+-> Logical Volume Family *
----------------------------------------------------------
Encryption Status: Unlocked
Encryption Type: None
Conversion Status: NoConversion
Conversion Direction: -none-
Has Encrypted Extents: No
Fully Secure: No
Passphrase Required: No
|
+-> Logical Volume *
---------------------------------------------------
Disk: disk2
Status: Online
Size (Total): 1111826497536 B (1.1 TB)
Conversion Progress: -none-
Revertible: No
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
 
JustMartin said:
ok - here

/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *121.3 GB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_CoreStorage 121.0 GB disk0s2
3: Apple_Boot Boot OS X 134.2 MB disk0s3
/dev/disk1
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage 999.3 GB disk1s2
3: Apple_Boot Recovery HD 650.0 MB disk1s3
/dev/disk2
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD *1.1 TB disk2

Name: Macintosh HD
Status: Online
Size: 1120333979648 B (1.1 TB)
Free Space: 114688 B (114.7 KB)
|
+-< Physical Volume *
| ----------------------------------------------------
| Index: 0
| Disk: disk0s2
| Status: Online
| Size: 120988852224 B (121.0 GB)
|
+-< Physical Volume *
| ----------------------------------------------------
| Index: 1
| Disk: disk1s2
| Status: Online
| Size: 999345127424 B (999.3 GB)
|
+-> Logical Volume Family *
----------------------------------------------------------
Encryption Status: Unlocked
Encryption Type: None
Conversion Status: NoConversion
Conversion Direction: -none-
Has Encrypted Extents: No
Fully Secure: No
Passphrase Required: No
|
+-> Logical Volume *
---------------------------------------------------
Disk: disk2
Status: Online
Size (Total): 1111826497536 B (1.1 TB)
Conversion Progress: -none-
Revertible: No
LV Name: Macintosh HD
Volume Name: Macintosh HD
Content Hint: Apple_HFS
Click to expand...

Thank you so much JustMartin!

I ask you one last thing.

Type in terminal

defaults write com.apple.DiskUtility DUDebugMenuEnabled 1

open Disk Utility, from the Debug menu and clic on "Show every partition"
Do a screenshot on the left where there is the partition list an publish as attach on this post

To revert as default, close Disk Utility, open Terminal and type

defaults write com.apple.DiskUtility DUDebugMenuEnabled 0

These terminal commands do not create problems.

Because my iMac is crazy, restart automatically when in stop, I want to compare if my partition are damaged after upgraded to Mavericks and restored to Mountain Lion.

Thanks, thanks, thanks!
 
This is my situation

Code: 
/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI                         209.7 MB   disk0s1
   2:          Apple_CoreStorage                         121.0 GB   disk0s2
   3:                 Apple_Boot Boot OS X               134.2 MB   disk0s3
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk1
   1:                        EFI                         209.7 MB   disk1s1
   2:          Apple_CoreStorage                         999.3 GB   disk1s2
   3:                 Apple_Boot Boot OS X               650.0 MB   disk1s3
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS Macintosh HD           *1.1 TB     disk2

Code: 
CoreStorage logical volume groups (1 found)
|
+-- Logical Volume Group XXXXX
    =========================================================
    Name:         Internal Drive
    Status:       Online
    Size:         1120333979648 B (1.1 TB)
    Free Space:   0 B (0 B)
    |
    +-< Physical Volume XXXXX
    |   ----------------------------------------------------
    |   Index:    0
    |   Disk:     disk0s2
    |   Status:   Online
    |   Size:     120988852224 B (121.0 GB)
    |
    +-< Physical Volume XXXXX
    |   ----------------------------------------------------
    |   Index:    1
    |   Disk:     disk1s2
    |   Status:   Online
    |   Size:     999345127424 B (999.3 GB)
    |
    +-> Logical Volume Family XXXXX
        ----------------------------------------------------------
        Encryption Status:       Unlocked
        Encryption Type:         None
        Conversion Status:       NoConversion
        Conversion Direction:    -none-
        Has Encrypted Extents:   No
        Fully Secure:            No
        Passphrase Required:     No
        |
        +-> Logical Volume XXXXX
            ---------------------------------------------------
            Disk:               disk2
            Status:             Online
            Size (Total):       1111824515072 B (1.1 TB)
            Size (Converted):   -none-
            Revertible:         No
            LV Name:            Macintosh HD
            Volume Name:        Macintosh HD
            Content Hint:       Apple_HFS

disk_utility.jpg

Can someone post the same to check differences?
 
Last edited:
Macintosh1984 said:
Hi!

A 1TB Fusion Drive user can do these command from Terminal:

- diskutil list
- diskutil cs list

and write the result? On diskutil cs list you can obscure UUID.

I did some messing around with partitions and I would like to restore it as the origin.

Thanks!
Click to expand...

Since you seem to be restoring your drives back to the original Fusion state, I would recommend you simply run the process from scratch. Rather than reverse engineer from an existing drive status.

Do a full backup of your OSX system. Boot into an install or recovery disk. Use disk utility to restore your SSD and HD to a single partition each. And run the process to create a Fusion disk. Then restore your system from the latest backup.
 
Well, my iMac have a "real Fusion Drive", so after some problem, and after delete my Recovery HD, I want recreate the original Apple structure.

Using diskuti

- diskutil cs deleteVolume
- diskutil cs delete

Disk Utility recreate the real structure fixing the disaster that I had done, but now
- the name of Logical Volume Group is Internal Drive instead of Macintosh HD
- I can boot on Recovery HD named Boot OS X, but I need to wait a few minutes that the Recovery HD is download again from Internet, so it seems that what is already present in Boot OS X, is not taken into consideration.

So I'm findig confirmations if the structure is OK, also into Disk Utility, if the Recovery HD is called Boot OS X and if there is a method to rename Internal Drive.

Thanks!
 
Macintosh1984 said:
Well, my iMac have a "real Fusion Drive", so after some problem, and after delete my Recovery HD, I want recreate the original Apple structure.

Using diskuti

- diskutil cs deleteVolume
- diskutil cs delete

Disk Utility recreate the real structure fixing the disaster that I had done, but now
- the name of Logical Volume Group is Internal Drive instead of Macintosh HD
- I can boot on Recovery HD named Boot OS X, but I need to wait a few minutes that the Recovery HD is download again from Internet, so it seems that what is already present in Boot OS X, is not taken into consideration.

So I'm findig confirmations if the structure is OK, also into Disk Utility, if the Recovery HD is called Boot OS X and if there is a method to rename Internal Drive.

Thanks!
Click to expand...

Nice to hear your fusion drive is restored to working condition. As for the name of the logical group, that is the assigned default name set by Disk Utility when it fixes (restores) your Fusion drive to the factory condition. It's simply an inert label and has no bearing to the functioning of the drive.

If you really need to rename it, you will need to follow the DIY instructions in the link I previously attached. But as pointed out before, it will delete the underlying volumes, requiring you to restore your system again. So backup your system before proceeding.

The Recovery HD is not a full restoral image, hence the size of only 650MB vs over 4GB for an install disk. So yes, is does rely on internet connectivity a lot. That's why I keep a USB stick handy with the latest OS X install image loaded on it for performing system reloads.
 
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