Voici le premier tableau suite à la commande "diskutil list"
/dev/disk0 (internal):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme 24.0 GB disk0
1: EFI EFI 314.6 MB disk0s1
2: Apple_CoreStorage FUSION 23.6 GB disk0s2
3: Apple_Boot Boot OS X 134.2 MB disk0s3
/dev/disk1 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk1
1: EFI EFI 209.7 MB disk1s1
2: Apple_CoreStorage FUSION 999.9 GB disk1s2
3: Apple_Boot Boot OS X 134.2 MB disk1s3
/dev/disk2 (internal, virtual):
#: TYPE NAME SIZE IDENTIFIER
0: Apple_HFS Macintosh HD +1.0 TB disk2
Logical Volume on disk0s2, disk1s2
76C81051-495E-486B-BB13-EFF1823BE736
Unencrypted Fusion Drive
/dev/disk3 (external, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *320.1 GB disk3
1: EFI EFI 209.7 MB disk3s1
2: Apple_HFS Sans titre 319.2 GB disk3s2
3: Apple_Boot Recovery HD 650.0 MB disk3s3