this post was submitted on 25 Jul 2023
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Linux
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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I run ZFS on my servers and then replicate to other ZFS servers with Syncoid.
Just keep in mind that a replica is not a backup.
If you lose or corrupt a file and you don't find out for a few months, it's gone on the replicas too.
Correct! I have Sanoid take daily and monthly snapshots on the source server, which replicate to the destination. Every now and then, I run a diff between the last known-good monthly snapshot and the most recent one which has been replicated to the destination. If I am happy with what files have changed, I delete the previous known-good snapshot and the one I diff’d becomes the new known-good. That helps keep me safe from ransomware on the source. The destination pulls from the source to prevent the source from tampering with the backup. Also helps when you’re running low on storage.