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Time Machine - Sonoma - help needed


Nicodem

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I gave up, no idea at all what is wrong but with new Mac I cannot use time machine.

Created new share for user, private, set to time machine.

Mounting it at Mac, adding as space but when it starts just gets error that machine couldnt complete backup and info "The backup disk image could not be created.". Nothing else

I need support on this.

 

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1 hour ago, Nicodem said:

I gave up, no idea at all what is wrong but with new Mac I cannot use time machine.

Created new share for user, private, set to time machine.

Mounting it at Mac, adding as space but when it starts just gets error that machine couldnt complete backup and info "The backup disk image could not be created.". Nothing else

I need support on this.

 

 

Here is log from Mac while trying to initiate first backup:

 

Filtering the log data using "subsystem == "com.apple.TimeMachine""
Timestamp                       Thread     Type        Activity             PID    TTL
2023-10-18 17:02:59.150493+0200 0x2feb1    Info        0x9e140              10409  0    TimeMachineSettings: (TimeMachine) [com.apple.TimeMachine:AppleEvent] Creating AppleEventInfo from dictionary: ["DestinationID": 0429963A-A05B-4C6F-A394-3961F3F22093, "TMAppleEventAction": 2]
2023-10-18 17:03:00.787029+0200 0x2feb1    Error       0x0                  10409  0    TimeMachineSettings: (TimeMachine) [com.apple.TimeMachine:AppleEventHandling] No pending apple event to handle
2023-10-18 17:03:03.553892+0200 0x2fec0    Info        0xa20ca              10409  0    TimeMachineSettings: (TimeMachine) [com.apple.TimeMachine:DestinationViewModel] User tried to start a backup for 0429963A-A05B-4C6F-A394-3961F3F22093
2023-10-18 17:03:03.558258+0200 0x311a8    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:BackupDispatching] Backup requested to destination with ID 0429963A-A05B-4C6F-A394-3961F3F22093. specifiedOptions: TMBackupOptions(rawValue: 1042)
2023-10-18 17:03:03.569208+0200 0x314ec    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:BackupDispatching] Starting backup with mode "manual backup"
2023-10-18 17:03:03.587149+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:Mounting] Rejecting candidate mount point: /Volumes/MBPROTIMEMACHINE, not owned by root
2023-10-18 17:03:03.597213+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:Mounting] Attempting to mount 'smb://dominik@NODE804._smb._tcp.local/MBPROTIMEMACHINE'
2023-10-18 17:03:03.844163+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] Initial network volume options for 'MBPROTIMEMACHINE' {disablePrimaryReconnect: 0, disableSecondaryReconnect: 0, reconnectTimeOut: 0, QoS: 0x0, attributes: 0x1C}
2023-10-18 17:03:04.057517+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] Configured network volume options for 'MBPROTIMEMACHINE' {disablePrimaryReconnect: 0, disableSecondaryReconnect: 0, reconnectTimeOut: 30, QoS: 0x20, attributes: 0x1C}
2023-10-18 17:03:04.061412+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:Mounting] Mounted 'smb://dominik@NODE804._smb._tcp.local/MBPROTIMEMACHINE' at '/Volumes/.timemachine/NODE804._smb._tcp.local/A93F491A-9B5D-42AE-B8CC-09C146AE8F3E/MBPROTIMEMACHINE' (17.54 TB of 52.8 TB available)
2023-10-18 17:03:04.270636+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] Mountpoint '/Volumes/.timemachine/NODE804._smb._tcp.local/A93F491A-9B5D-42AE-B8CC-09C146AE8F3E/MBPROTIMEMACHINE' is still valid
2023-10-18 17:03:04.498683+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:DiskImages] Creating an unencrypted diskimage
2023-10-18 17:03:04.498821+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] Mountpoint '/Volumes/.timemachine/NODE804._smb._tcp.local/A93F491A-9B5D-42AE-B8CC-09C146AE8F3E/MBPROTIMEMACHINE' is still valid
2023-10-18 17:03:04.500563+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:DiskImages] Using a band size of 12.89 GB on a volume sized 52.8 TB)
2023-10-18 17:03:04.540708+0200 0x314e0    Error       0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:DiskImages] Failed to create '/Volumes/.timemachine/NODE804._smb._tcp.local/A93F491A-9B5D-42AE-B8CC-09C146AE8F3E/MBPROTIMEMACHINE/115E4F32-C6D1-5F71-A0AB-1B232FA1A797_2023-10-18-170304.sparsebundle', error: (null)
2023-10-18 17:03:04.551726+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] Mountpoint '/Volumes/.timemachine/NODE804._smb._tcp.local/A93F491A-9B5D-42AE-B8CC-09C146AE8F3E/MBPROTIMEMACHINE' is still valid
2023-10-18 17:03:04.551954+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:UnmountChecker] Evaluating to see if an unmount was responsible for error: Error Domain=com.apple.backupd.ErrorDomain Code=20 "(null)" UserInfo={NSUnderlyingError=0x122909d70 {Error Domain=com.apple.backupd.ErrorDomain Code=20 "(null)"}}
2023-10-18 17:03:04.552198+0200 0x314eb    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] Mountpoint '/Volumes/.timemachine/NODE804._smb._tcp.local/A93F491A-9B5D-42AE-B8CC-09C146AE8F3E/MBPROTIMEMACHINE' is still valid
2023-10-18 17:03:04.764666+0200 0x314e0    Info        0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] Unmounted '/Volumes/.timemachine/NODE804._smb._tcp.local/A93F491A-9B5D-42AE-B8CC-09C146AE8F3E/MBPROTIMEMACHINE'
2023-10-18 17:03:04.919569+0200 0x31423    Error       0x0                  11069  0    TMHelperAgent: (TimeMachine) [com.apple.TimeMachine:General] com.apple.TMHelperAgent.DeliverNotification: connection invalid
2023-10-18 17:03:04.934994+0200 0x314eb    Error       0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:BackupDispatching] Backup failed: BACKUP_FAILED_DISK_IMAGE_NOT_CREATED (20)
Elapsed time: Calculating...
2023-10-18 17:03:04.935277+0200 0x314eb    Error       0xa20ca              502    0    backupd: (TimeMachine) [com.apple.TimeMachine:Analytics] Analytics send failed.
2023-10-18 17:03:13.644726+0200 0x314ec    Error       0x0                  502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] com.apple.backupd.sandbox.xpc: connection invalid
2023-10-18 17:03:19.582382+0200 0x31808    Error       0x0                  502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] com.apple.backupd.sandbox.xpc: connection invalid
2023-10-18 17:03:23.352413+0200 0x318cd    Error       0x8db34              623    0    SystemUIServer: (TimeMachine) [com.apple.TimeMachine:General] Failed to read capabilities for '/Volumes/MBPROTIMEMACHINE', error: Operation not permitted
2023-10-18 17:03:23.352663+0200 0x318d2    Error       0x86920              623    0    SystemUIServer: (TimeMachine) [com.apple.TimeMachine:General] Failed to read capabilities for '/Volumes/MBPROTIMEMACHINE', error: Operation not permitted
2023-10-18 17:03:23.356947+0200 0x318d1    Error       0x881ff              623    0    SystemUIServer: (TimeMachine) [com.apple.TimeMachine:General] Failed to read capabilities for '/Volumes/MBPROTIMEMACHINE', error: Operation not permitted
2023-10-18 17:03:23.357224+0200 0x318d3    Error       0x810fd              623    0    SystemUIServer: (TimeMachine) [com.apple.TimeMachine:General] Failed to read capabilities for '/Volumes/MBPROTIMEMACHINE', error: Operation not permitted
2023-10-18 17:03:23.357301+0200 0x318ce    Error       0x84b32              623    0    SystemUIServer: (TimeMachine) [com.apple.TimeMachine:General] Failed to read capabilities for '/Volumes/MBPROTIMEMACHINE', error: Operation not permitted
2023-10-18 17:03:23.357489+0200 0x318cb    Error       0x86cce              623    0    SystemUIServer: (TimeMachine) [com.apple.TimeMachine:General] Failed to read capabilities for '/Volumes/MBPROTIMEMACHINE', error: Operation not permitted
2023-10-18 17:03:23.357658+0200 0x318d0    Error       0x7ff77              623    0    SystemUIServer: (TimeMachine) [com.apple.TimeMachine:General] Failed to read capabilities for '/Volumes/MBPROTIMEMACHINE', error: Operation not permitted
2023-10-18 17:03:23.357958+0200 0x318ca    Error       0x9e7b3              623    0    SystemUIServer: (TimeMachine) [com.apple.TimeMachine:General] Failed to read capabilities for '/Volumes/MBPROTIMEMACHINE', error: Operation not permitted
2023-10-18 17:03:30.151702+0200 0x318ca    Error       0xa1924              623    0    SystemUIServer: (TimeMachine) [com.apple.TimeMachine:General] Failed to read capabilities for '/Volumes/MBPROTIMEMACHINE', error: Operation not permitted
2023-10-18 17:03:30.156745+0200 0x319d0    Error       0xa1924              623    0    SystemUIServer: (TimeMachine) [com.apple.TimeMachine:General] Failed to read capabilities for '/Volumes/MBPROTIMEMACHINE', error: Operation not permitted
2023-10-18 17:03:50.634708+0200 0x31be8    Error       0x0                  502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] com.apple.backupd.sandbox.xpc: connection invalid
2023-10-18 17:03:51.180907+0200 0x319d2    Error       0x0                  502    0    backupd: (TimeMachine) [com.apple.TimeMachine:General] com.apple.backupd.sandbox.xpc: connection invalid

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  • 5 weeks later...

Time Machine has been a bit of a project in sorting this all out

 

  • You must give the time machine share a volume size limit.  Leaving it empty does not work anymore
  • You should always specify a single disk on the included disks section when creating the share.
    • Time Machine backups via SMB are stored as a single vdisk.  This means that it is constrained to a single disk no matter what.  Depending upon how your split levels work etc and how much free space you have on whatever disk it winds up creating the share on, you could have significantly less space available than you think.
  • If the volume size limit is greater than the available space on the drive, then TM will work for a little bit (days) and then ultimately fail
  • Anecdotal
    • Any failed backup for whatever reason to a SMB share will result in TM never being able to backup again to that share without deleting the share and then re-creating it (and having TM re-initialize the backup)
    • Any change to SMB settings after creating the share seem to need a restart of Unraid.  (eg: creating a new share etc)

At the end of the day, TM to network drives is unsupported by Apple (although it lets you do it). 

 

Findings / fixes are still a work in progress for me.

 

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