Language Selection

English French German Italian Portuguese Spanish

Didier Roche: ZFS focus on Ubuntu 20.04 LTS: what’s new?

Filed under
Ubuntu

Ubuntu has supported ZFS as an option for some time. In 19.10, we introduced experimental support on the desktop. As explained by then, 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. I strongly suggest you read the 2 above blog posts as introductions to this blog series we are starting. Here we cover what’s new compared to 19.10 in term of installation and general features. We then look at what ZSys, our dedicated helper for ZFS systems, can do for you and how you can interact with it. Finally, for the more tech savy, we will deep dive in to how we use ZFS, store properties and understanding how the puzzle fits together. We 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.

Without further ado, let’s dive into this!

Read more

Oracle Talks Up Btrfs Rather Than ZFS For Their Unbreakable...

  • Oracle Talks Up Btrfs Rather Than ZFS For Their Unbreakable Enterprise Kernel 6

    While Red Hat Enterprise Linux deprecated Btrfs and no longer supports it on RHEL8, Oracle does continue supporting this Linux file-system on their RHEL-based Oracle Linux when using the company's "Unbreakable Enterprise Kernel" alternative to their Red Hat Compatible Kernel. An Oracle engineer put out a lengthy post outlining the highlights of Btrfs in their new Unbreakable Enterprise Kernel 6.

    Unbreakable Enterprise Kernel 6 is making use of the upstream Linux 5.4 kernel and with the more recent kernel code-base the Btrfs driver allows for configurable compression level, other compression improvements, fallocate zero-range support, swapfile support, unregistering scanned devices, out-of-band deduplication, and other features compared to the prior state of Btrfs support on Oracle Linux.

Ubuntu 20.10 Installer With ZFS Will Enable TRIM By Default

  • Ubuntu 20.10 Installer With ZFS Will Enable TRIM By Default

    In addition to working on easy ZFS encryption for Ubuntu 20.10, the Ubiquity installer in its latest code for this next Ubuntu Linux release is now enabling TRIM by default for all Zpools.

    A change made to the latest Ubiquity desktop installer for Ubuntu 20.10 flips on auto trim for all ZFS pools by default. The change is just passing the "autotrim=on" mount option when creating the Zpool during the installation process.

    The autotrim=on option is the means of enabling TRIM automatically rather than having to run the zpool trim command.

ZFS focus on Ubuntu 20.04 LTS

  • ZFS focus on Ubuntu 20.04 LTS: ZSys general presentation

    In our previous blog post, we presented some enhancements and differences between Ubuntu 19.10 and Ubuntu 20.04 LTS in term of ZFS support. We only alluded to ZSys, our ZFS system helper, which is now installed by default when selecting ZFS on root installation on the Ubuntu Desktop.

    It’s now time to shed some lights on it and explain what exactly ZSys is bringing to you.

    [...]

    As you can infer from the above, we will have a lot of state saves. While we allow the user to manually save and remove states, as most of them will be taken automatically, it would be complicated and counter-productive on a daily bases to handle them manually. Add to this that some states are dependent on other states to be purged (more on that in … you would have guess, the next blog post about state!), you can understand the complexity here.

    The GC will have also its dedicated post, but in summary, we are trying to prune states as time passes, to ensure that you have a number of relevant states that you can revert to. The general idea is that as more time pass by, the less granularity you need. This will help saving disk space. You will have a very finer grain states to revert to for the previous day, a little bit less for the previous weeks, less for months… You get it I think. Smile

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.