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primary_dev
2010 Jul 30
2
rsync mirror solution: how to prevent accidental mirror deletion
...nd the backup_server
had this line in the crontab:
10 01 * * * rsync -av --delete root at production_server::home
/production_server_home_bkup
Things worked fine and whenever we tested backup_server it always had
a faithful image of the production_server. Unfortunately, one day the
RAID array on primary_server had a failure. As a result /home mount
was lost temporarily. This happened over the weekend and by the time
we got around to checking, the backup_server had a chance to run its
cron job. This job merrily erased every file on the backup since it
thought /home was now supposed to be empty when it s...