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Automatic Timestamped ZFS Snapshots with Cron

A couple of months ago I setup a cron job to automatically create timestamped snapshots of my zfs filesystem. Little did I know, there was a syntax error preventing my job from actually executing. Here's the correct (yet not-so-intuitive) cron job to get a nightly, timestamped snapshot of the ZFS filesystem @tank@:

Michael Altfield

Hi, I’m Michael Altfield. I write articles about opsec, privacy, and devops ➡

About Michael

tech.michaelaltfield.net/

*Cheap*, Redundant, Multi-TB, Storage Solution

Storage is getting so cheap these days. So cheap, in fact, that multi-terabyte home servers are now economically feasible.

The emergence of cheap 1 terabye hard drives and ZFS perfectly compliment each other. Like others, I've embraced these two technologies to build myself a redundant, multi-TB disk array with 3x1TB drives running in a RAIDZ on OpenSolaris for about $300.

Michael Altfield

Hi, I’m Michael Altfield. I write articles about opsec, privacy, and devops ➡

About Michael


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