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Written by Matt Campbell on 2025-01-21 at 20:48

I now have a rather lopsided setup for self-hosting: a single-board computer with a low-end ARM64 processor (a quad-core ARM Cortex-A55), 4 GB of RAM, a 64 GB eMMC module for the Linux root filesystem... and a new 4 TB USB SSD connected to the USB 3.0 host port. This is running on my gigabit fiber connection in my apartment, with a static IPv4 address.

The USB SSD just arrived. I'll set up ZFS on it later.

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Toot

Written by Matt Campbell on 2025-01-21 at 20:53

Or maybe I shouldn't use ZFS on this thing, given the somewhat limited RAM (by today's bloated standards) and ZFS's cache which is separate from the Linux page cache. But being able to make point-in-time consistent snapshots as backups and send them offsite with zfs send/receive over SSH is really appealing. With most other filesystems, backups would mean traversing the filesystem and getting a possibly inconsistent snapshot.

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