A client needs an automated backup solution to an external drive (to be taken offsite weekly). I'd typically suggest rsnapshot (or perhaps rolling out a custom
rsync script), but this question is slightly more involved.
The Arch Linux based system is headless and therefore the solution must be fully automated, requiring no user intervention.
An ideal scenario would be as follows:
- The user plugs in a USB hard drive
- A complete incremental backup is made
- The hard drive is unmounted
- The user is notified that the hard drive can be unplugged
My proposed solution consists of:
udevrule automatically mounts the drive
The backup is started with:
- The same
udevrule also triggers a
- An inotify create event detects the new mount point and triggers
- The same
umountis ran on the drive
Possible ways to notify the hard drive can be removed:
- The CD drive opens
- A sound is played through the PC speaker
If an error occurred at any point, email the user and unmount the drive.
- My proposal seems feasible but are there obvious flaws? How can I make it robust?
- For security purposes, how can I make sure the hard drive plugged in is the user's?
sshkeys? Drive label?
- Are there existing (Linux) solutions that encompass this?