NOTE: THIS IS OBSOLETE. See later post.
Just for the record: I'm backing up all the processed images from /home1t/coldesp/www/jpg_scans/ to Rutabaga, by ssh-ing into nfs.tapor.uvic.ca and running:
rsync --stats --recursive --times --delete --verbose -e ssh jpg_scans/ "mholmes@rutabaga.hcmc.uvic.ca:/home/mholmes/backups/Martin/Colonial\ Despatches/www/jpg_scans/"
This needs to be run periodically to keep the backup up to date. Of course home1t is backed up as a matter of course, but these images represent such an investment of time that I'd like to keep multiple copies. I'm also going to look at making a Rutabaga backup of /home1t/coldesp/archive/, which contains all the original image sets from which these were generated.