OK, it's been running whilst the machine has been unattended this afternoon and there are several logs. As the logs do not appear to be timed, I cannot tell when these were run - there are a number of backups with varying numbers of files and total size.
However, as I'm not sure what I'm looking for or where I should look, I post a couple below, one where there is 10GB of backup and another when around only 107MB.
The third log below is that which recorded the first back-up since I came home. It took some 35 to 40 minutes.
The logs below indicates that each back-up takes plae in two parts, one followed immediatly by the other as evidenced by the two file counts and size requests.
What appears to be common between them is the line: Bulk setting Spotlight attributes failed.
The Time Capsule is called Sue and the iMac Grumpy (don't ask! 😉 )
The current System preference indicates the following staistics:
Oldest back-up: Yesterday 06:00
Latest back-up: Today 18:26
Next back-up: Today, 18:58
Any further advice would be very much appreciated.
31562 files (10.2 GB) followed immediately by 21050 files (8.5 GB)
Starting standard backup
Attempting to mount network destination using URL: afp://Roy@Sue.local/Data
Mounted network destination using URL: afp://Roy@Sue.local/Data
QUICKCHECK ONLY; FILESYSTEM CLEAN
Disk image /Volumes/Data/Roy’s iMac.sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
No pre-backup thinning needed: 11.02 GB requested (including padding), 1.16 TB available
Bulk setting Spotlight attributes failed.
Copied 31562 files (10.2 GB) from volume Grumpy.
No pre-backup thinning needed: 10.83 GB requested (including padding), 1.16 TB available
Copied 21050 files (8.5 GB) from volume Grumpy.
Starting post-backup thinning
No post-back up thinning needed: no expired backups exist
Backup completed successfully.
Ejected Time Machine disk image.
Ejected Time Machine network volume.
21914 files (107.7 MB) folloowed immediatly by 21914 files (107.7 MB)
Starting standard backup
Attempting to mount network destination using URL: afp://Roy@Sue.local/Data
Mounted network destination using URL: afp://Roy@Sue.local/Data
QUICKCHECK ONLY; FILESYSTEM CLEAN
Disk image /Volumes/Data/Roy’s iMac.sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
No pre-backup thinning needed: 1.63 GB requested (including padding), 1.15 TB available
Bulk setting Spotlight attributes failed.
Copied 32454 files (655.1 MB) from volume Grumpy.
No pre-backup thinning needed: 937.5 MB requested (including padding), 1.15 TB available
Copied 21914 files (107.7 MB) from volume Grumpy.
Starting post-backup thinning
Deleted backup /Volumes/Time Machine Backups/Backups.backupdb/Roy’s iMac/2012-07-09-162608: 1.15 TB now available
Post-back up thinning complete: 1 expired backups removed
Backup completed successfully.
Ejected Time Machine disk image.
Ejected Time Machine network volume.
32473 files (610.2 MB) followed immediately by 21921 files (557.7 MB)
Starting standard backup
Attempting to mount network destination using URL: afp://Roy@Sue.local/Data
Mounted network destination using URL: afp://Roy@Sue.local/Data
QUICKCHECK ONLY; FILESYSTEM CLEAN
Disk image /Volumes/Data/Roy’s iMac.sparsebundle mounted at: /Volumes/Time Machine Backups
Backing up to: /Volumes/Time Machine Backups/Backups.backupdb
No pre-backup thinning needed: 1.52 GB requested (including padding), 1.15 TB available
Bulk setting Spotlight attributes failed.
Copied 32473 files (610.2 MB) from volume Grumpy.
No pre-backup thinning needed: 1.44 GB requested (including padding), 1.15 TB available
Copied 21921 files (557.7 MB) from volume Grumpy.
Starting post-backup thinning
Deleted backup /Volumes/Time Machine Backups/Backups.backupdb/Roy’s iMac/2012-07-09-170300: 1.15 TB now available
Post-back up thinning complete: 1 expired backups removed
Backup completed successfully.
Ejected Time Machine disk image.
Ejected Time Machine network volume.