Hi again,
Even after disabling the EOS FS scan, the ScanDir thread did update the ctime of files in the retrieve space. For the time being, we have got around this by increasing the scan_disk_interval to a value far larger than either gc_age_secs or absolute_max_age_secs, i.e 7 days.
We have opended a thread in the EOS forum re FS scanning - Disable EOS FS scanning - #4 by tombyrne - EOS Community
A probably better solution might be for the CTA FST garbage collection to look at the mtime instead of the ctime. Is this a change you could consider?
Thanks,
George