Category Archives: Tech News

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A New Version Of Ceph Has Been Released, Ceph Jewel

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ceph-logoThe latest version of Ceph has been released codenamed Jewel with version number 10.2.0. Ceph Jewel has been released as a long term support (LTS) version and will be retired in November 2017.

The Ceph Jewel release marks the first stable release of CephFS. Whilst some have been using CephFS for some time, this is the first release it’s officially marked as stable and production ready.

Various other improvements have been made with the Jewel release:

  • CephFS:
    • This is the first release in which CephFS is declared stable! Several features are disabled by default, including snapshots and multiple active MDS servers.
    • The repair and disaster recovery tools are now feature-complete.
    • A new cephfs-volume-manager module is included that provides a high-level interface for creating “shares” for OpenStack Manila and similar projects.
    • There is now experimental support for multiple CephFS file systems within a single cluster.
  • RGW:
    • The multisite feature has been almost completely rearchitected and rewritten to support any number of clusters/sites, bidirectional fail-over, and active/active configurations.
    • You can now access radosgw buckets via NFS (experimental).
    • The AWS4 authentication protocol is now supported.
    • There is now support for S3 request payer buckets.
    • The new multitenancy infrastructure improves compatibility with Swift, which provides a separate container namespace for each user/tenant.
    • The OpenStack Keystone v3 API is now supported. There are a range of other small Swift API features and compatibility improvements as well, including bulk delete and SLO (static large objects).
  • RBD:
    • There is new support for mirroring (asynchronous replication) of RBD images across clusters. This is implemented as a per-RBD image journal that can be streamed across a WAN to another site, and a new rbd-mirror daemon that performs the cross-cluster replication.
    • The exclusive-lock, object-map, fast-diff, and journaling features can be enabled or disabled dynamically. The deep-flatten features can be disabled dynamically but not re-enabled.
    • The RBD CLI has been rewritten to provide command-specific help and full bash completion support.
    • RBD snapshots can now be renamed.
  • RADOS:
    • BlueStore, a new OSD backend, is included as an experimental feature. The plan is for it to become the default backend in the K or L release.
    • The OSD now persists scrub results and provides a librados API to query results in detail.
    • We have revised our documentation to recommend against using ext4 as the underlying filesystem for Ceph OSD daemons due to problems supporting our long object name handling.

Taken from release notes

 


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Proxmox 4.2 is now available

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proxmox logo gradA new version of Proxmox has been released building on the solid foundations laid down with the version 4 branch of Proxmox VE. The latest version 4.2 brings a new GUI, integration with Let’s Encrypt, updated packages and countless bug fixes.

You can download the ISO from https://www.proxmox.com/en/downloads/category/iso-images-pve

Highlights of the 4.2 release:

  • Based on Debian 8.4
  • New GUI using Sencha Ext JS 6
  • Let’s Encrypt support
  • Numerous LXC updates
    • Ability to add network rate limits
    • Add mount points via the GUI
    • Improved backups

Upgrade

Before updating, make sure all your VM’s have been stopped, both LXC and KVM. Ensure you have the required repository entries for apt-get. You’ll either need a valid license key or to add the less stable pve-no-subscription repository. See Proxmox 3.1 package/ updates manager (this also works for version 4.x) for more information.

Run the below commands on each server in your cluster.

Restart all Proxmox servers to complete the installation.


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Proxmox 4.0 Has Been Released

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proxmox logo gradThe Proxmox VE team have released the latest version of Proxmox VE, Proxmox VE 4.0.

There are some pretty big changes in Proxmox version 4 which really warrant the new 4.0 version increment. See my other blog post on the initial 4.0 BETA 1 release notes for the bigger picture, or the below bullet points for the latest changes.

  • Improvements to the new container engine based on LXC, especially the integration into the storage model.
  • Migration path from OpenVZ to LXC
  • Linux Kernel 4.2
  • Ceph Server packages (0.94.x – hammer release)
  • Embedded NoVNC console
  • Improved IPv6 support
  • Redesigned HA
  • Countless bug fixes

You can download the ISO from their download site and install it onto a new machine.

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Proxmox 4.0 Beta 2 is Now Available

Category : Tech News

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proxmox logo gradThe Proxmox VE team have released a new BETA version of their 4.0 branch to the public.

 

There are some pretty big changes in Proxmox v4 which really warrant the new 4.0 version increment. See my other blog post on the initial 4.0 BETA 1 release notes for the bigger picture, or the below bullet points for the latest changes.

  • Improvements to the new container engine based on LXC, especially the integration into the storage model.
  • Migration path from OpenVZ to LXC
  • Linux Kernel 4.2
  • Ceph Server packages (0.94.x – hammer release)
  • Embedded NoVNC console
  • Improved IPv6 support
  • Countless bug fixes

You can download the ISO from their download site and install it onto a new machine. Unfortunately, because it’s still a BETA product there is no upgrade path from 3.4. I’d expect this to change in the near future.

It’s worth noting, however, that the website states that any BETA version of release 4.0 will be upgradeable to the full 4.0 when it’s available.

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Proxmox 4.0 Beta 1 is Now Available

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proxmox logo gradThe latest release of Proxmox VE has entered it’s first BETA today with the release of Proxmox VE 4.0 BETA 1.

It’s the first public release of version 4.0 and comes with some pretty big changes!

HA Clusters are now configured using the Proxmox Web GUI and don’t require separate fencing kit – it’s provided out of the box. It’s about time, in my opinion, as plenty of other software manages HA without 3rd party processes to tell you what’s up and what’s down. This is a very welcome addition to any small Proxmox Cluster.

Linux Containers will replace OpenVZ as the Proxmox VE container solution. As you’d expect, LXCs will work with the usual Storage plugins offered by Proxmox, although Sheepdog, Ceph, iSCSI, DRBD and GlusterFS will be in a future release.

There are some other updates, such as the latest DRBD9 packages are shipped, and the whole thing runs on the latest Debian release, Debian Jessie 8.1.

You can download the ISO from their download site and install it onto a new machine. Unfortunately, because it’s still a BETA product there is no upgrade path from 3.4. I’d expect this to change in the near future.

It’s worth noting, however, that the website states that any BETA version of release 4.0 will be upgradeable to the full 4.0 when it’s available.

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New features in Proxmox Test Repository

Category : Tech News

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proxmox logo gradProxmox uses two main repositories (if you exclude the Enterprise repository) to release updates to Proxmox servers around the world. The usual repository pve-no-subscription is used to release updates for the Proxmox VE platform that are usually stable and tested. The other repository is the pvetest repository that contains new code that has not yet been thoroughly tested by the community. Updates in the pvetest repository should never be used in production, but are a great way to give something back to the Proxmox community by testing the code in a development environment and to see what new features are up and coming.

Martin Maurer sent an email to the Proxmox mailing list stating that a rift of changes and new features have been released to the pvetest repository and are available for download.

If you would like to use the pvetest repository on your Proxmox installation you will need to add the test repository source to your configuration. Remember, this is not recommended for production servers.

The notable features include:

  • A new Proxmox VE Firewall for the host and guests.
  • A new non-Java Html5 Console
  • Two-factor authentication

Keep an eye out for the official release, but we can speculate that a new version of Proxmox is just on the horizon containing these new updates.


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