Connection Information will be provided in this link on the day of the meeting.

The meeting will open at 6:00p.m. Central Time.

The presentation(s) will begin at 6:30p.m. Central Time.

December 21, 2023 Meetup

St. Louis Linux Users Group

Design an image for a blog that captures the key technologies and concepts for an upcoming presentation. Start with a gradient background transitioning smoothly from dark blue to light blue to symbolize a shift from local to offsite backups. In the center, place a high-resolution image of the ODROID H3+ board. Surround this with the logos of the ZFS, Restic, and recognizable icons for Linux/Unix arranged in a circular fashion. Include subtle vector graphics illustrating the 3-2-1 Backup strategy near the top with three hard drive icons of varying sizes, two smaller distinctive storage media icons, and an offsite icon represented by a distant server or a cloud. On the side of the ODROID H3+, introduce geometric patterns or icons signifying data protection. Lastly, include small screen overlay icons in a corner to suggest a virtual and free-to-access orientation of the presentation. Make sure all elements are balanced and synchronized visually, thereby visually encapsulating the focus of the presentation.

Using ZFS to Achieve 3-2-1 Backups and Bitrot Protection on Limited Hardware

Presented By: Sean Twiehaus

I'm gearing this talk towards homelab users. The premise will be: I have some documents (taxes, copies of drivers licenses, marriage certificate etc.) that contain too much Personally Identifiable Information (PII) to upload to Google or Dropbox. How can I keep these documents backed up and secured using minimal hardware that I may already have laying around.

I'll show how I'm achieving 3-2-1 Backups using an ODROID H3+ w zfs_autobackup & Restic.

The bulk of this presentation will be me explaining the ZFS setup that I described in this forum post:

https://discourse.practicalzfs.com/t/snapshots-to-a-different-zpool-on-the-same-host-as-part-of-a-3-2-1-backup-strategy/1074

Basically, I have an ODROID H3+ that has multiple drives attached. I configure them to have multiple zpools. I then take snapshots of one zpool and send it to another zpool on the same host. This gives me two copies of the data on two different storage devices. Then I use restic to send a third copy offsite. I also use some nifty ZFS features to enable bitrot protection on a single device zpool.

backup filesystem storage

Spread the word

Goofy Profile Picture of Tux

@LinuxLegend • 6h ago

Join us on 12/21 for Sean Twiehaus's talk: 'Using ZFS to Achieve 3-2-1 Backups and Bitrot Protection on Limited Hardware.' Learn how to secure your vital documents with minimal hardware! #Linux #Backup #ZFS #SLUUG https://www.meetup.com/saint-louis-unix-users-group/events/291365848/

Meeting Artifacts and Media

Meeting Agenda

At 6:00p.m. Central Time the meeting opens. Participants are encouraged to join at this time to if they need to test their microphone, screen sharing, and video camera.

At 6:30p.m. Central Time we attempt a quick welcome, introductions, announcements, current events of interest, and a general CALL FOR HELP (Questions and Answers) segment.

At 6:45p.m. Central Time the presentation begins.