What ZFS pool, vdev and dataset properties should most people use?
ZFS has many different configurable properties for pools, for vdevs and for datasets. Many of those can be changed at any point, but some can only be set at creation time (or only affect data written...
View Articlezfs force import multiple VMS (IDs) and now can't find VM but it's not...
I'm completely new to ZFS. Today, I did something stupid and caused a problem where I need to recover my entire OS. On a live OS I'm using to recover my machine, I need to mount my ZFS volumes for data...
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dRAID, Parity 1 + 1 Distributed Spare Better than basic RAIDz2 for 5x12TB HDDs?
Stumbled on dRAID recently and was grokking the docs for OpenZFS on linux and I came away with a conclusion from the chart that I wanted to double check.This is a brand new system that I'm currently...
View ArticleZFS performance: Extreme low write speed
I am running a small home server. The specs are:CPU: AMD Ryzen 5 2600RAM: 32 GB ECCSystem drive: 128GB NVMe SSDData drives: 3x 4 TB Seagate Barracuda HDDThe server runs some applications like Nextcloud...
View ArticleZFS silently overwrites the later mirrored devs, without any logs?
Given two mirrored drives:/dev/loop1 of zfs1.img/dev/loop2 of zfs2.imgIf the drives contain different data, even if the copies in zfs2.img are newer, or zfs2.img contains extra files, ZFS always...
View ArticleSyncthing on ZFS a good case for Deduplication?
I've have a ext4 on LVM on linux RAID based NAS for a decade + that runs syncthing and syncs dozens of devices in my homelab. Works great. I'm finally building it's replacement based on ZFS RAID (first...
View ArticleWhat are potential dangers of spanning ZFS RAIDZ over different size disks?...
I am redesigning my homelab servers from scratch, and want to try ZFS after experimentation I've done.I know there is a limitation that disks in vdevs must all have the same size, otherwise only the...
View ArticleErasing Contents of a Parent Dataset Without Destroying Children?
I have a parent dataset under which are stored a number of other datasets that are still in use. In the past I also used the parent itself to store data, as it was part of a directory...
View Article"No L2ARC Here" but cache disks are present in ZFS
I replaced the cache disks on my ZFS server and everything seems fine to me:$ zpool status pool: storage state: ONLINE scan: scrub repaired 0B in 1 days 09:44:40 with 0 errors on Tue Jan 21 17:50:23...
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