OpenZFS Feature Flags Compatibility Matrix

With the introduction of ZFS feature flags many users have experienced compatibility problems working with ZFS pools on different operating systems or operating system versions. In this article I am providing a table comparing the ZFS Feature Flag support on FreeBSD, Linux (zfsonlinux), Mac OSX (OpenZFS OSX) and illumos (OmniOS). Continue reading

AsiaBSDcon 2014 – Deploying FreeBSD systems with Foreman and mfsBSD

My first trip to Japan ever was connected with speaking at the AsiaBSDcon conference on March 15-16 at the Tokyo University of Science. I have met many fellow developers, including Matt Ahrens from the Illumos project who was my co-speaker at EuroBSDcon 2013 in Malta last year. This time I had a completely new topic, my talk had the title “Deploying FreeBSD systems with Foreman and mfsBSD”. My special thanks go to Hiroki Sato and George Neville-Neil who have organized this successful conference.
PDF with presentation slides, Youtube Video Continue reading

EuroBSDcon 2013 – OpenZFS

Malta’s sunny weather and beautiful sea attracted many international speakers and guests to EuroBSDcon 2013. The conference was held at the Hilton Conference Centre in St. Julian’s, Malta on September 26-29, 2013. This year my co-speaker was Matt Ahrens, one of the two founders of the ZFS filesystem. Our talk was about the OpenZFS project and covered the current state and future coordination of open source ZFS development in multiple platforms – illumos, FreeBSD and Linux.
PDF with presentation slides Continue reading

Facebook’s HipHop Virtual Machine in FreeBSD ports

Great news for PHP administrators and site architects – the Facebook’s HipHop Virtual Machine (HHVM) version 2.1 is now available in the FreeBSD ports tree. The port is available under lang/hiphop-php and is limited to the amd64 architecture.

HHVM is an open source virtual machine that can act as a standalone server that can run PHP sites. With it’s just-in-time compilation approach PHP sites receive a reasonable speedup.

Special thanks to vanilla@FreeBSD.org who has helped me making this port work. Our patches have been submitted to Facebook via GitHub. Continue reading

EuroBSDcon 2012 – Tuning ZFS on FreeBSD

This year’s EuroBSDcon took place at the Warsaw University of Technology on October 20-21. The conference was well organized with great keynote talks by Eric Allman and Kirk McKusick. My talk was titled “Tuning ZFS on FreeBSD” and based on my identically named article in the August issue of the BSD Magazine. I presented several do’s and don’ts and other findings and recommendations from my experience with the ZFS file system.
PDF with presentation slides Continue reading

FreeBSD network configuration on Hetzner servers

Update: article updated 20.3.2013

My current dedicated server provider in Europe is the german company Hetzner. They support FreeBSD but use a non-standard network configuration. It is not very well documented how to properly configure network settings on FreeBSD to have a fully functional IPv4 and IPv6 network. In this article I am giving an example how to configure it properly just with the /etc/rc.conf file. Continue reading

BSD_day 2011 in Bratislava

This year’s Central European BSD_day will be on November 5th, 2011 in my home city Bratislava, Slovakia.
The one-day event is intended for everyone interested in BSD operating systems and is organized by me (Martin Matuška, mm@), Gábor Páli (pgj@) and YNET. Several BSD developers will give a talk, including myself. Entry is free.

More information at the event homepage: http://bsdday.eu/2011
Social network links: Facebook, LinkedIn

The BSDA certification exam will be offered at the event.

Article in BSD Magazine: mfsBSD

A new article of mine with the title “mfsBSD – The Swiss Army Knife for FreeBSD system administrators” was published in the August issue of the free online publication BSD Magazine. The target group of this magazine are users and friends of BSD operating systems.

The article contains an introduction to mfsBSD and two tutorials:
1. Installing ZFS-on-root FreeBSD with mfsBSD
2. Setting up network boot with mfsBSD (pxeboot or PXELINUX)

Link to the free issue: BSD Magazine 08/2011

ZFS v28 for FreeBSD 8.2

The version 28 of the ZFS filesystem has been merged to FreeBSD 8-STABLE as of revision 222741 (June 6th, 2011).
There are many FreeBSD users of 8.2-RELEASE (RELENG_8_2) which may want to take advantage of the new ZFS version (v28) before 8.3-RELEASE.
For these users I am providing a patch against the RELENG_8_2 source tree, updated kernel module and binaries and mfsBSD ISO images for testing and rescue.
Continue reading