10.15 Catalina Problèmes avec mon Fusion Drive

apparement oui tout se passe bien, je procède par sondage de droite et de gauche.


Bloc de code:
Last login: Sat May  2 09:09:25 on ttys001
[iMac-de-TRAVAIL:~] travail% diskutil verifyVolume disk2
Started file system verification on disk2
Verifying storage system
Using live mode
Performing fsck_apfs -n -x -l /dev/disk0s2
Checking the container superblock
Checking the fusion superblock
Checking the EFI jumpstart record
Checking the space manager
Checking the space manager free queue trees
Checking the object map
Checking the Fusion data structures
Checking volume
Checking the APFS volume superblock
The volume Macintosh HD - Données was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.101.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume Macintosh HD was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.101.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume Preboot was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.101.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume Recovery was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.101.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume VM was formatted by apfs.util (1412.101.1) and last modified by apfs_kext (1412.101.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Verifying allocated space
warning: MT mapping (0x400000ba7de22 -> 0x8d86b3, 1, C) is not completely referenced
warning: MT mapping (0x400000c1ce898 -> 0x8d83c0, 2, C) is not completely referenced
warning: MT mapping (0x400000c1e4394 -> 0x7682b8, 6, C) is not completely referenced
warning: MT mapping (0x400000c1e439a -> 0x8fcdb1, 160, C) is not completely referenced
warning: MT mapping (0x400000c1e6a01 -> 0x7682d0, 6, C) is not completely referenced
warning: MT mapping (0x400000c1e72b7 -> 0x8ffdd3, 5, C) is not completely referenced
warning: MT mapping (0x400000c1e9bd1 -> 0x902142, 12, C) is not completely referenced
warning: MT mapping (0x400000c233115 -> 0x8dabc4, 1, C) is not completely referenced
The volume /dev/disk0s2 appears to be OK
Storage system check exit code is 0
Finished file system verification on disk2
[iMac-de-TRAVAIL:~] travail%
 
Il y a un petit avertissement concernant l'espace alloué (pas grave). Sinon > plus d'erreur dans les structures du Fusion Drive. Et code de sortie de la vérification = 0 (zéro faute).

- donc opération formellement réussie.​
 
Reste à te remercier pour ton aide et ta patience.

Sans toi je n'y serais pas arrivé.

Je vais continuer mes sondages pour vérifier que tout est en ordre

Un Grand Merci :up::up:

Jean-Marc
 
Bonjour à Tous,

Au mois de mai dernier macomaniac m'avait bien aidé à ma dépatouiller de mon problème.
Aujourd'hui je relance pour pouvoir lever un doute.
Macomaniac m'avait demandé à la fin de lancer un "diskutil verifyVolume disk2" et le résultat donnait 8 warning
aujourd'hui j'ai relancé la même commande et j'en ai 40.
Je ne sais pas si cela est grave ou pas.
Si macomaniac ou un collègue à la réponse je suis preneur
D'avance merci

Bloc de code:
Last login: Sat Aug 15 07:16:32 on console
[imac-de-travail:~] travail% diskutil verifyVolume disk2
Started file system verification on disk2
Verifying storage system
Using live mode
Performing fsck_apfs -n -x -l /dev/disk0s2
Checking the container superblock
Checking the fusion superblock
Checking the EFI jumpstart record
Checking the space manager
Checking the space manager free queue trees
Checking the object map
Checking the Fusion data structures
Checking volume
Checking the APFS volume superblock
The volume Macintosh HD - Données was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.141.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking snapshot 1 of 8 (com.apple.TimeMachine.2020-08-14-151633.local)
Checking snapshot 2 of 8 (com.apple.TimeMachine.2020-08-14-201240.local)
Checking snapshot 3 of 8 (com.apple.TimeMachine.2020-08-14-211207.local)
Checking snapshot 4 of 8 (com.apple.TimeMachine.2020-08-14-221736.local)
Checking snapshot 5 of 8 (com.apple.TimeMachine.2020-08-15-071329.local)
Checking snapshot 6 of 8 (com.apple.TimeMachine.2020-08-15-081634.local)
Checking snapshot 7 of 8 (com.apple.TimeMachine.2020-08-15-101337.local)
Checking snapshot 8 of 8 (com.apple.TimeMachine.2020-08-15-110721.local)
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume Macintosh HD was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.141.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking snapshot 1 of 8 (com.apple.TimeMachine.2020-08-14-151633.local)
Checking snapshot 2 of 8 (com.apple.TimeMachine.2020-08-14-201240.local)
Checking snapshot 3 of 8 (com.apple.TimeMachine.2020-08-14-211207.local)
Checking snapshot 4 of 8 (com.apple.TimeMachine.2020-08-14-221736.local)
Checking snapshot 5 of 8 (com.apple.TimeMachine.2020-08-15-071329.local)
Checking snapshot 6 of 8 (com.apple.TimeMachine.2020-08-15-081634.local)
Checking snapshot 7 of 8 (com.apple.TimeMachine.2020-08-15-101337.local)
Checking snapshot 8 of 8 (com.apple.TimeMachine.2020-08-15-110721.local)
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume Preboot was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.141.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume Recovery was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.141.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume VM was formatted by apfs.util (1412.101.1) and last modified by apfs_kext (1412.141.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Verifying allocated space
warning: MT mapping (0x400000036f54d -> 0x166a160, 1, C) is not completely referenced
warning: MT mapping (0x400000036f54e -> 0x166a178, 1, C) is not completely referenced
warning: MT mapping (0x400000037daad -> 0x8df9a1, 1, C) is not completely referenced
warning: MT mapping (0x40000003c28e9 -> 0x4339a9, 1, C) is not completely referenced
warning: MT mapping (0x40000003c28ea -> 0x4339ab, 1, C) is not completely referenced
warning: MT mapping (0x40000004701f7 -> 0x2ba99f, 1, C) is not completely referenced
warning: MT mapping (0x4000000470f92 -> 0x2baaf1, 1, C) is not completely referenced
warning: MT mapping (0x4000000470f93 -> 0x2baaf4, 1, C) is not completely referenced
warning: MT mapping (0x4000000493c95 -> 0x7111cd, 1, C) is not completely referenced
warning: MT mapping (0x4000000493c96 -> 0x128487d, 4, C) is not completely referenced
warning: MT mapping (0x40000004e5148 -> 0x166dd9a, 1, C) is not completely referenced
warning: MT mapping (0x40000004e514f -> 0x166ddc2, 1, C) is not completely referenced
warning: MT mapping (0x40000004fad2d -> 0x7a11d7, 1, C) is not completely referenced
warning: MT mapping (0x4000000540971 -> 0x166a009, 1, C) is not completely referenced
warning: MT mapping (0x4000000540972 -> 0x166a00b, 1, C) is not completely referenced
warning: MT mapping (0x4000000543c78 -> 0x166a02a, 1, C) is not completely referenced
warning: MT mapping (0x4000000543cda -> 0x166a034, 1, C) is not completely referenced
warning: MT mapping (0x4000000613a7f -> 0x438272, 1, C) is not completely referenced
warning: MT mapping (0x40000006f3fbc -> 0x716bc0, 1, C) is not completely referenced
warning: MT mapping (0x400000079750e -> 0x8e382e, 3, C) is not completely referenced
warning: MT mapping (0x4000000856bcb -> 0x710074, 1, C) is not completely referenced
warning: MT mapping (0x40000008591d8 -> 0x710433, 1, C) is not completely referenced
warning: MT mapping (0x4000000a68fc2 -> 0x430044, 1, C) is not completely referenced
warning: MT mapping (0x4000000b4c4b6 -> 0xcbbfad, 66, C) is not completely referenced
warning: MT mapping (0x4000000b4c864 -> 0x76e63c, 3, C) is not completely referenced
warning: MT mapping (0x4000000c1326b -> 0x117802d, 6, C) is not completely referenced
warning: MT mapping (0x4000000c1327f -> 0x1178385, 25, C) is not completely referenced
warning: MT mapping (0x4000000c138c5 -> 0x117faa4, 21, C) is not completely referenced
warning: MT mapping (0x4000000cc46e5 -> 0x7a5537, 1, C) is not completely referenced
warning: MT mapping (0x4000000cc46e6 -> 0x7a553a, 1, C) is not completely referenced
warning: MT mapping (0x4000000d008df -> 0xa0830e, 2, C) is not completely referenced
warning: MT mapping (0x4000000d008e1 -> 0xa08334, 2, C) is not completely referenced
warning: MT mapping (0x4000000d008e3 -> 0xa08341, 2, C) is not completely referenced
warning: MT mapping (0x4000000dc4146 -> 0xff06dc, 2, C) is not completely referenced
warning: MT mapping (0x400000431e674 -> 0x4304ac, 1, C) is not completely referenced
warning: MT mapping (0x4000004327ea7 -> 0x8d97e4, 1, C) is not completely referenced
warning: MT mapping (0x400000432a2fc -> 0x4380d8, 1, C) is not completely referenced
warning: MT mapping (0x400000432e270 -> 0x194f65f, 66, C) is not completely referenced
warning: MT mapping (0x400000432edb1 -> 0x8d84af, 1, C) is not completely referenced
warning: MT mapping (0x4000004388e85 -> 0x7a4c78, 1, C) is not completely referenced
warning: MT mapping (0x4000004388e95 -> 0x7a4d5c, 1, C) is not completely referenced
warning: MT mapping (0x4000004388e96 -> 0x7a4d5f, 1, C) is not completely referenced
warning: MT mapping (0x4000004388ea9 -> 0x7a4db9, 2, C) is not completely referenced
warning: MT mapping (0x400000438e750 -> 0xf48183, 2, C) is not completely referenced
warning: MT mapping (0x400000438ea30 -> 0x908179, 1, C) is not completely referenced
warning: MT mapping (0x400000438ea32 -> 0x849cdc, 37, C) is not completely referenced
warning: MT mapping (0x40000043a2dd3 -> 0x430064, 1, C) is not completely referenced
warning: MT mapping (0x40000043ba9ba -> 0x166967c, 1, C) is not completely referenced
warning: MT mapping (0x400000444ba23 -> 0xb7bd2e, 1, C) is not completely referenced
warning: MT mapping (0x4000004450e17 -> 0x430296, 1, C) is not completely referenced
Too many warnings of this type generated; suppressing subsequent ones
The volume /dev/disk0s2 appears to be OK
Storage system check exit code is 0
Finished file system verification on disk2
[imac-de-travail:~] travail%
 
Bonjour Ruan

L'OS Catalina est manifestement installé > avec 2 volumes principaux : Macintosh HD (système) et Macintosh HD - Données (données). La vérification de l'apfs fait ressortir 2 choses -->

- une série de 8 snapshots (instantanés apfs archivant des états passés du volume et retenant comme occupés tous les blocs correspondant aux fichiers imagés) - snapshots concernant les 2 volumes principaux en synchronisme dans la mesure où ceux-ci sont appairés logiquement et donc solidaires
- une série d'erreurs affectant le spaceman (space_manager) = gestionnaire de l'allocation de blocs de l'apfs

Le fonctionnement de l'apfs ne doit pas se trouver affecté > mais l'occupation des blocs est susceptible d'excéder la taille des fichiers catalogués. As-tu un problème d'occupation d'espace dans le Conteneur apfs de ton Fusion Drive ?
 
Bonjour Macomaniac

As-tu un problème d'occupation d'espace dans le Conteneur apfs de ton Fusion Drive ?

Cela répond à la question ?

Capture d’écran.jpg
 
Dernière édition par un modérateur:
Estimes-tu avoir dans les 842 Go de données (fichiers personnels + applications tierces ajoutées) ?
 
Mon dossier maison pèse 880,34 Go dont 219,82 Go pour la bibliothèque soit pour les données 660,52 Go
Je ne sais pas combien pèse une bibliothèque vierge lors de l'installation
 
Dernière édition:
Ma propre Bibliothèque de compte fait 14 Go - pour te donner un point de comparaison.

- veux-tu explorer les localisations de fichiers dans ta Bibliothèque => pour voir s'il n'y a pas d'anomalies ?​
 
Il me semble qu'il n'y a pas de problème à ce niveau.
J'ai Containers avec 106,96 Go (je sais pourquoi) et Application Support avec 92,27 Go (je sais aussi pourquoi)
Bon j'ai un petit coup de balai à donner mais en gros je retrouve mes petits
 
D'accord : je vois que tu sais inspecter sans problème les contenus de ta Bibliothèque (et donc les gérer).

- utillises-tu couramment Time Machine ? - je le dis à cause des 8 snapshots qui peuvent verrouiller un espace de blocs notable autrement.​
 
je vois que tu sais inspecter sans problème les contenus de ta Bibliothèque (et donc les gérer).

Si seulement ...

Oui j'utilise Time Machine. Je sauvegarde sur un NAS et j'ai constaté que depuis quelques temps dans le Finder au niveau des Emplacements j'ai une "nouvelle" ligne nommée copies de sauvegarde Time Machine
 
Alors tu n'as pas besoin de purger manuellement les snapshots -->

- ils constituent des sauvegardes locales > permettant à Time Machine de sauvegarder des états passés du volume en plus de son état présent. Ils sont purgés en fin de sauvegarde > puis sont recréés periodiquement dans l'attente d'une nouvelle sauvegarde.​
 
Une dernière question concernant les "warning: MT mapping" j'en avais moins de dix hier, 40 aujourd'hui et demain ?
Est-ce qu'il y a une limite au-delà de laquelle cela posera problème ?
 
Tu peux démarrer via ⌘R en mode secours -->

- lance l'Utilitaire de disque. Presse la pastille : "Présentation" (angle gauche supérieur du panneau) > et sélectionne : "Afficher tous les appareils" => le Conteneur apfs global se trouve alors affiché.​
- sélectionne-le > et presse le bouton S.O.S. => pour réparer tout ce qui se peut de l'apfs. Pour réparer l'apfs > il faut que les volumes qui en dépendent puissent être démontés > ce qui n'est pas le cas en démarrage sur les volumes de l'OS. C'est le cas en démarrage de secours > car avec l'OS Catalina (et déjà Mojave) => il y a clonage en RAM à la volée de l'image-disque hébergée du volume Recovery et contenant l'OS de secours --> ce qui fait que le démarrage de secours démarre le Mac sur la RAM en indépendance du disque. Il est donc possible de réparer l'apfs global après démontage de tous les volumes qui en dépendent.​

La réparation effectuée > redémarre normalement et réouvre ta session. Vérifie alors s'il y a toujours des problèmes d'allocation d'espace de blocs.
 
Malheureusement pas de changement

Bloc de code:
Last login: Sun Aug 16 10:54:09 on console
[imac-de-travail:~] travail% diskutil verifyVolume disk2
Started file system verification on disk2
Verifying storage system
Using live mode
Performing fsck_apfs -n -x -l /dev/disk1s2
Checking the container superblock
Checking the fusion superblock
Checking the EFI jumpstart record
Checking the space manager
Checking the space manager free queue trees
Checking the object map
Checking the Fusion data structures
Checking volume
Checking the APFS volume superblock
The volume Macintosh HD - Données was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.141.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking snapshot 1 of 14 (com.apple.TimeMachine.2020-08-15-101337.local)
Checking snapshot 2 of 14 (com.apple.TimeMachine.2020-08-15-120956.local)
Checking snapshot 3 of 14 (com.apple.TimeMachine.2020-08-15-130737.local)
Checking snapshot 4 of 14 (com.apple.TimeMachine.2020-08-15-141315.local)
Checking snapshot 5 of 14 (com.apple.TimeMachine.2020-08-15-150853.local)
Checking snapshot 6 of 14 (com.apple.TimeMachine.2020-08-15-161026.local)
Checking snapshot 7 of 14 (com.apple.TimeMachine.2020-08-15-170855.local)
Checking snapshot 8 of 14 (com.apple.TimeMachine.2020-08-15-180747.local)
Checking snapshot 9 of 14 (com.apple.TimeMachine.2020-08-15-190717.local)
Checking snapshot 10 of 14 (com.apple.TimeMachine.2020-08-15-201625.local)
Checking snapshot 11 of 14 (com.apple.TimeMachine.2020-08-15-220819.local)
Checking snapshot 12 of 14 (com.apple.TimeMachine.2020-08-15-230720.local)
Checking snapshot 13 of 14 (com.apple.TimeMachine.2020-08-16-071253.local)
Checking snapshot 14 of 14 (com.apple.TimeMachine.2020-08-16-090736.local)
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume Macintosh HD was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.141.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking snapshot 1 of 14 (com.apple.TimeMachine.2020-08-15-101337.local)
Checking snapshot 2 of 14 (com.apple.TimeMachine.2020-08-15-120956.local)
Checking snapshot 3 of 14 (com.apple.TimeMachine.2020-08-15-130737.local)
Checking snapshot 4 of 14 (com.apple.TimeMachine.2020-08-15-141315.local)
Checking snapshot 5 of 14 (com.apple.TimeMachine.2020-08-15-150853.local)
Checking snapshot 6 of 14 (com.apple.TimeMachine.2020-08-15-161026.local)
Checking snapshot 7 of 14 (com.apple.TimeMachine.2020-08-15-170855.local)
Checking snapshot 8 of 14 (com.apple.TimeMachine.2020-08-15-180747.local)
Checking snapshot 9 of 14 (com.apple.TimeMachine.2020-08-15-190717.local)
Checking snapshot 10 of 14 (com.apple.TimeMachine.2020-08-15-201625.local)
Checking snapshot 11 of 14 (com.apple.TimeMachine.2020-08-15-220819.local)
Checking snapshot 12 of 14 (com.apple.TimeMachine.2020-08-15-230720.local)
Checking snapshot 13 of 14 (com.apple.TimeMachine.2020-08-16-071253.local)
Checking snapshot 14 of 14 (com.apple.TimeMachine.2020-08-16-090736.local)
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume Preboot was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.141.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume Recovery was formatted by diskmanagementd (1412.101.1) and last modified by apfs_kext (1412.141.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Checking volume
Checking the APFS volume superblock
The volume VM was formatted by apfs.util (1412.101.1) and last modified by apfs_kext (1412.141.1)
Checking the object map
Checking the snapshot metadata tree
Checking the snapshot metadata
Checking the extent ref tree
Checking the fsroot tree
Verifying allocated space
warning: MT mapping (0x400000037daad -> 0x8df9a1, 1, C) is not completely referenced
warning: MT mapping (0x40000003c28e9 -> 0x4339a9, 1, C) is not completely referenced
warning: MT mapping (0x40000003c28ea -> 0x4339ab, 1, C) is not completely referenced
warning: MT mapping (0x400000043940d -> 0x2744e3, 1, D) is not completely referenced
warning: MT mapping (0x400000045cf76 -> 0x274cb2, 2, D) is not completely referenced
warning: MT mapping (0x400000045df76 -> 0x274ced, 1, D) is not completely referenced
warning: MT mapping (0x400000045df77 -> 0x274cf0, 1, D) is not completely referenced
warning: MT mapping (0x4000000470f92 -> 0x2baaf1, 1, C) is not completely referenced
warning: MT mapping (0x4000000470f93 -> 0x2baaf4, 1, C) is not completely referenced
warning: MT mapping (0x4000000493c95 -> 0x7111cd, 1, C) is not completely referenced
warning: MT mapping (0x4000000493c96 -> 0x128487d, 4, C) is not completely referenced
warning: MT mapping (0x40000004e5148 -> 0x166dd9a, 1, C) is not completely referenced
warning: MT mapping (0x40000004e514f -> 0x166ddc2, 1, C) is not completely referenced
warning: MT mapping (0x40000004fad2d -> 0x7a11d7, 1, C) is not completely referenced
warning: MT mapping (0x4000000540971 -> 0x166a009, 1, C) is not completely referenced
warning: MT mapping (0x4000000540972 -> 0x166a00b, 1, C) is not completely referenced
warning: MT mapping (0x4000000543c78 -> 0x166a02a, 1, C) is not completely referenced
warning: MT mapping (0x4000000543cda -> 0x166a034, 1, C) is not completely referenced
warning: MT mapping (0x4000000613a7f -> 0x438272, 1, C) is not completely referenced
warning: MT mapping (0x40000006f3fbc -> 0x716bc0, 1, C) is not completely referenced
warning: MT mapping (0x400000079750e -> 0x8e382e, 3, C) is not completely referenced
warning: MT mapping (0x4000000856bcb -> 0x710074, 1, C) is not completely referenced
warning: MT mapping (0x40000008591d8 -> 0x710433, 1, C) is not completely referenced
warning: MT mapping (0x4000000a68fc2 -> 0x430044, 1, C) is not completely referenced
warning: MT mapping (0x4000000b4c4b6 -> 0xcbbfad, 66, C) is not completely referenced
warning: MT mapping (0x4000000b4c864 -> 0x76e63c, 3, C) is not completely referenced
warning: MT mapping (0x4000000c1326b -> 0x117802d, 6, C) is not completely referenced
warning: MT mapping (0x4000000c1327f -> 0x1178385, 25, C) is not completely referenced
warning: MT mapping (0x4000000c138c5 -> 0x117faa4, 21, C) is not completely referenced
warning: MT mapping (0x4000000c895b5 -> 0x717b0b, 1, C) is not completely referenced
warning: MT mapping (0x4000000cc17b6 -> 0x717c15, 1, C) is not completely referenced
warning: MT mapping (0x4000000cc46e5 -> 0x7a5537, 1, C) is not completely referenced
warning: MT mapping (0x4000000cc46e6 -> 0x7a553a, 1, C) is not completely referenced
warning: MT mapping (0x4000000dc4146 -> 0xff06dc, 2, C) is not completely referenced
warning: MT mapping (0x4000004327ea7 -> 0x8d97e4, 1, C) is not completely referenced
warning: MT mapping (0x400000432a2fc -> 0x4380d8, 1, C) is not completely referenced
warning: MT mapping (0x400000432e270 -> 0x194f65f, 66, C) is not completely referenced
warning: MT mapping (0x400000432edb1 -> 0x8d84af, 1, C) is not completely referenced
warning: MT mapping (0x4000004388e85 -> 0x7a4c78, 1, C) is not completely referenced
warning: MT mapping (0x4000004388e95 -> 0x7a4d5c, 1, C) is not completely referenced
warning: MT mapping (0x4000004388e96 -> 0x7a4d5f, 1, C) is not completely referenced
warning: MT mapping (0x4000004388ea9 -> 0x7a4db9, 2, C) is not completely referenced
warning: MT mapping (0x400000438e750 -> 0xf48183, 2, C) is not completely referenced
warning: MT mapping (0x400000438ea30 -> 0x908179, 1, C) is not completely referenced
warning: MT mapping (0x400000438ea32 -> 0x849cdc, 37, C) is not completely referenced
warning: MT mapping (0x40000043ba9ba -> 0x166967c, 1, C) is not completely referenced
warning: MT mapping (0x40000043e6c27 -> 0x2700ec, 1, C) is not completely referenced
warning: MT mapping (0x400000444ba23 -> 0xb7bd2e, 1, C) is not completely referenced
warning: MT mapping (0x4000004450e17 -> 0x430296, 1, C) is not completely referenced
warning: MT mapping (0x4000004450e18 -> 0x430299, 1, C) is not completely referenced
Too many warnings of this type generated; suppressing subsequent ones
The volume /dev/disk1s2 appears to be OK
Storage system check exit code is 0
Finished file system verification on disk2
[imac-de-travail:~] travail%
 
Tu peux laisser courir tant que ça n'a pas d'effet sur l'occupation du Conteneur apfs.

- sinon : il suffirait de démarrer en mode secours > dans l'Utilitaire de disque (option : "Afficher tous les appareils") sélectionner le Conteneur global et Effacer (format apfs / volume Macintosh HD). Puis lancer une réinstallation à destination de Macintosh HD. Enfin > à la page de finalisation d'installation proposant de récupérer des fichiers => choisir le volume de Time Machine en source pour l'Assistant de migration. L'apfs ayant été supprimé / recréé de neuf => le problème d'alllocation d'espace de l'apfs serait réglé.​
 
Si cela ne porte pas à conséquences inutile d'aller plus loin.

Sinon au mois de mai on n'avait déjà récrée l'apfs en recréant le Fusion Drive, non ?

Enfin les "warning: MT mapping" naissent comment ? et provoquent quoi ? Est-ce le signe d'une faiblesse du HDD ? Faut-il envisager de le changer ?
 
Il doit s'agir de légères erreurs logiques dans le gestionnaire des blocs de l'apfs (le spaceman). Erreurs qui n'ont pas l'air de tirer à conséquence. Tant que tu ne lances pas une commande de vérification de l'apfs => tu n'as pas d'avertissements concernant ces erreurs. L'apfs se débrouille avec en silence.

- donc : tant que tu ne notes pas d'anomalies de fonctionnement dans ta session (comme un ralentissement des opérations) => tu n'as qu'à laisser l'apfs gérer tout seul ses tâches de coulisses...​