Recently I've started getting -643 errors with my client (at the moment I have only one). They happen consistently with every backup to every one of my 4 local hard disk backup sets, but never with my cloud backup sets, but only the client backups, not the backups of the server PC itself. The local backup sets do get many more files (system and program files, as well as user files) than the cloud backup sets (user files only). I just installed 17.5, which made no difference. I'm not sure if there is a correlation with the upgrade to 17.0 or not. I've tried doing CHKDSK on the disks being backed up (no errors), rebuilding some catalog files, and, in one case, resetting the backup set, none of which made a difference. I'm using Windows 10 Pro v2004 on both the server and client.
Here are the error messages:
+ Normal backup using Backup LG Gram 17 to Backup Set 1 at 9/30/2020 6:33 PM (Execution unit 1)
9/30/2020 6:33:30 PM: Finished scanning backup set data files
To Backup Set Backup Set 1...
- 9/30/2020 6:33:29 PM: Copying Programs Disk (C:) on LGGram17
Scanning incomplete, error -643 (not a chunk file or badly damaged)
[*] lvtrScanBad: @ fileCount=393,563 folderCount=92,482 treeMemSize=137,326,204 normSpaceCount=2 spanSpaceCount=0 dirMemSize=25,333,308
- 9/30/2020 6:36:59 PM: Copying Data Disk (D:) on LGGram17
Scanning incomplete, error -643 (not a chunk file or badly damaged)
[*] lvtrScanBad: @ fileCount=1,607,505 folderCount=40,915 treeMemSize=491,855,520 normSpaceCount=2 spanSpaceCount=0 dirMemSize=14,457,360 9/30/2020 6:45:26 PM: Compressing catalog file
9/30/2020 6:45:26 PM: Execution incomplete
Total duration: 00:11:56 (00:11:55 idle/loading/preparing)
Any thoughts?