Time machine backup arduous drive and exterior drive fails in prep stage on account of 303 error

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Time machine backup arduous drive and exterior drive fails in prep stage on account of 303 error


I’ve arrange my time machine to incorporate an exterior SSD in its backup. Initially it labored, then instantly began failing inside 30 seconds in the course of the ‘making ready backup’ stage. Here’s what I imagine to be related console output:

default 10:24:09.412477-0500    backupd Beginning question at qos 0x9
default 10:24:09.440069-0500    backupd Beginning question at qos 0x9
error   10:24:10.135483-0500    backupd Failed to attend for snapshot deletion to finish on disk '/System/Volumes/Replace/mnt1', error: Error Area=NSPOSIXErrorDomain Code=1 "Operation not permitted"
default 10:24:10.173034-0500    backupd Learn (Subarbitration) choices: 1 -- URL:  -- purposeID: com.apple.TimeMachine.snapshot -- claimID: B5189416-4B1F-41B7-8256-6CC150C2F8E7
default 10:24:10.177676-0500    backupd Subarbitration declare B5189416-4B1F-41B7-8256-6CC150C2F8E7 granted in shopper
default 10:24:10.177701-0500    backupd Subarbitration declare B5189416-4B1F-41B7-8256-6CC150C2F8E7 invoked in shopper
default 10:24:10.189260-0500    backupd Learn (Subarbitration) choices: 1 -- URL:  -- purposeID: com.apple.TimeMachine.snapshot -- claimID: C11E112F-7AD3-4B18-9C70-F800F426C5D3
default 10:24:10.191227-0500    backupd Subarbitration declare C11E112F-7AD3-4B18-9C70-F800F426C5D3 granted in shopper
default 10:24:10.191307-0500    backupd Subarbitration declare C11E112F-7AD3-4B18-9C70-F800F426C5D3 invoked in shopper
error   10:24:10.621504-0500    backupd Didn't mount APFS snapshot with title 'com.apple.TimeMachine.2024-11-12-003546.native' on quantity '/System/Volumes/Knowledge' at mountpoint: '/Volumes/com.apple.TimeMachine.localsnapshots/Backups.backupdb/Max's MacBook Professional/2024-11-12-003546/Macintosh HD - Knowledge', error: Error Area=NSPOSIXErrorDomain Code=2 "No such file or listing"
error   10:24:10.622019-0500    backupd Didn't mount reference snapshot: com.apple.TimeMachine.2024-11-12-003546.native supply: Macintosh HD - Knowledge
error   10:24:11.962968-0500    backupd Unrecoverable zero fileid - path: 'DS_Store', flags: 00011400
error   10:24:11.963092-0500    backupd Unrecoverable zero fileid - path: 'ocumentRevisions-V100/.cs/ChunkStoreDatabase', flags: 00010400
error   10:24:11.963161-0500    backupd Unrecoverable zero fileid - path: 'umentRevisions-V100/LibraryStatus', flags: 00018800
error   10:24:11.963244-0500    backupd Unrecoverable zero fileid - path: 'umentRevisions-V100/LibraryStatus', flags: 00015800
error   10:24:11.963310-0500    backupd Unrecoverable zero fileid - path: 'umentRevisions-V100/db-V1', flags: 00024000
error   10:24:11.963365-0500    backupd Unrecoverable zero fileid - path: 'umentRevisions-V100/purgatory', flags: 00024000
error   10:24:11.963417-0500    backupd Unrecoverable zero fileid - path: 'umentRevisions-V100/staging', flags: 00024000
error   10:24:11.963468-0500    backupd Unrecoverable zero fileid - path: 'poraryItems/folders.0/TemporaryItems/NSIRD_revisiond_IE36Cr', flags: 00020300
error   10:24:11.963572-0500    backupd Unrecoverable zero fileid - path: 'poraryItems/folders.0/TemporaryItems/NSIRD_revisiond_IE36Cr/LibraryStatus', flags: 00010900
error   10:24:11.963774-0500    backupd Occasion assortment stopped due to error: Error Area=com.apple.backupd.ErrorDomain Code=303 "(null)"
error   10:24:11.964286-0500    backupd Failed to gather occasions for "max_music" (machine: /dev/disk4s1 mount: '/Volumes/max_music' fsUUID: 03273473-8B2C-3D62-BB73-6640675B8651 eventDBUUID: 8E7383AE-643C-48A5-8DE7-86E23DCBE65A), error Error Area=com.apple.backupd.ErrorDomain Code=303 "(null)" UserInfo={FailedStrategy=16}
error   10:24:12.281645-0500    backupd Backup failed (303: BACKUP_FAILED_PREFLIGHT_STAGE_GATHER_EVENTS)

Laborious to know what I could possibly be doing to set off it. My SSD is used for Logic Professional classes and different information and I often work from the classes that reside there. Generally I transfer massive quantities of information to that drive to scrub out my arduous drive.
The primary time this situation began it lasted 3 weeks earlier than resolving itself (no thought why).

In abstract – please assist me:

  • additional examine the difficulty
  • resolve this situation
  • setup an alternate approach to routinely backup my exterior SSD (perhaps the
    manner I am doing it isn’t really useful?)

Issues I’ve tried:

  • first aid-ing the time machine drive and the SSD: no points
  • manually deleting in progress and interrupted backup information
  • toggling the highlight index privateness to exclude my SSD
  • ready awhile whereas drives are related (solely factor that has labored previously)
  • restarting whereas drives related
  • speaking to my pc

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