December 4, 20241 yr Hello, I want to install Unraid on my current Qnap TS-453D. I need to backup and restore approx. 20 TB of data. The crucial data has a backup on Amazon Glacier but I would prefer a full backup and restore. Any tips for a reliable way to backup 20 TB to a Seagate external HDD USB 3.2 would be greatly appreciated. I'm thinking rsync for now but I have no experience with this volume of data. Thanks.
December 4, 20241 yr Community Expert Solution I used rsync to backup 18TB of media data from a working to a backup server. This is the switches that I used for rsync: rsync -avhPX You can google for more info on what each switch does. Also be sure that you understand what the trailing slash--- / ---does on the source path and destination path. (It does not make much difference for most Linux commands but it does for rsync!) P.S.--- The same command will also update the backup with any new or changed files. You may not have need of this right now but keep that factoid in the back of your mind. (The switch is missing that would delete any files in the destination directories that have been removed/deleted from the source directories.)
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