Openzfs ubuntu11/2/2022 ![]() We also backported in Ubuntu 20.04 LTS other fixes in our kernel from the incoming 0.8.4 (and OpenZFS 2.0) release, like encryption performance enhancements. ZSys and other components (for instance ZFS bindings) have been updated to work with the new libzfs version. As usual, those releases ( 0.8.2 and 0.8.3) bring a lot of improvements and fixes, (note though that we backported some fixes in Ubuntu 19.10 from 0.8.2 into our package to fix some critical issues for our users). We updated from 19.10 to 20.04 LTS OpenZFS to its latest and greatest available release (0.8.3). We hope to be able to drop this experimental support in the coming cycle, and backport to a 20.04.x release. With OpenZFS on Ubuntu 20.04 LTS, we are building the first steps of getting the Ubuntu bulletproof desktop. The installer highlights this in the corresponding screen. The first thing to note is that our ZFS support with ZSys is still experimental. Without further ado, let’s dive into this! ZFS & Ubuntu 20.04 LTS #Openzfs ubuntu how toWe will give you tips on how to tweak it at your convenience if you are a ZFS sysadmin expert, while still keeping ZSys advanced capabilities compatible. Finally, for the more tech savy, we deep dive into how we use ZFS, store properties and understand how the puzzle fits together. We then look at what ZSys, our dedicated helper for ZFS systems, can do for you and how you can interact with it. Here we cover what’s new compared to 19.10 in term of installation and general features. #Openzfs ubuntu seriesI strongly suggest you read the 2 blog posts, linked above, as introductions to this blog series we are starting. As explained, having a ZFS on root option on our desktop was only a first step in what we want to achieve by adopting this combined file system and logical volume manager. In 19.10, we introduced experimental support on the desktop. I’m quite happy! Will be cool to use ZFS and snapshots for home directory on this box.Ubuntu has supported ZFS as an option for some time. Let’s get a bit more information about the pool - for instance, confirm which disks are in it: # zpool status Newvol 1.88G 212K 1.87G - 0% 0% 1.00x ONLINE - Show ZFS pool status and member disks ![]() #Openzfs ubuntu freeNAME SIZE ALLOC FREE CKPOINT EXPANDSZ FRAG CAP DEDUP HEALTH ALTROOT ![]() Here it is: my newly created ZFS pool called newvol: # zpool list Nice! Now let’s create a ZFS pool (it’s like a RAID array if you’re familiar with mdadm): zpool create -f newvol raidz /vdisks/disk1.img /vdisks/disk2.img /vdisks/disk3.img /vdisks/disk4.img Confirm ZFS pool status in Ubuntu Show ZFS pools: zpool list #Openzfs ubuntu installZlua 147456 1 zfs Installing ZFS utils in UbuntuĪlright, next step is installing tools that provide all these z-commands for managing ZFS: # apt-get install zfsutils Creating ZFS pool from virtual disksįirst, I’ll need a few virtual disks: # fallocate -l 512M /vdisks/disk1.img Spl 126976 5 zfs,icp,znvpair,zcommon,zavl … meaning you need to probe ZFS modules to activate this functionality: :~ $ sudo modprobe zfsĪs you can see, there’s quite a few modules are loaded now: :~ $ lsmod | grep zfs Most likely you don’t have the ZFS modules loaded by default: :~ $ lsmod | grep zfs I actually quite miss ZFS from my Sun Microsystems days. I upgraded one of the smallest servers at home office to Ubuntu 20.04 recently and realised that ZFS support has been added to Ubuntu for quite some time - so maybe I should explore it more. ![]()
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