In my past article "Tutorial: native ZFS on Ubuntu and Fedora Linux" I have given a tutorial how to install ZFS on Linux from the KQ Infotech github repository. This tutorial can be considered obsolete as the company KQ Infotech has been acquired by STEC, Inc (company with focus on SSD). Their ZFS on Linux project was assumably closed, as there is no more serious activity at their github repository.
Continue reading "Native ZFS for Linux: development continues at..." »
Monday, 18. July 2011
Native ZFS for Linux: development continues at LLNL
In my past article "Tutorial: native ZFS on Ubuntu and Fedora Linux" I have given a tutorial how to install ZFS on Linux from the KQ Infotech github repository. This tutorial can be considered obsolete as the company KQ Infotech has been acquired by STEC, Inc (company with focus on SSD). Their ZFS on Linux project was assumably closed, as there is no more serious activity at their github repository.
Continue reading "Native ZFS for Linux: development continues at..." »
Sunday, 19. June 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 "ZFS v28 for FreeBSD 8.2" »
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 "ZFS v28 for FreeBSD 8.2" »
Thursday, 3. March 2011
Backported patches for FreeBSD 8.2-RELEASE
FreeBSD 8.2-RELEASE was announced on February 24, 2011.
As we have been experiencing some problems we had to install several patches that didn't make it into the release but I consider them important or useful. Most annoying was the swap panic problem, followed by two ZFS problems (page activation if using sendfile(2) and clock_t overflow), so we had to backport these patches to 8.2-RELEASE. Continue reading "Backported patches for FreeBSD 8.2-RELEASE" »
Friday, 18. February 2011
Article in BSD Magazine: ZFS and FreeBSD
An article of mine with the title "ZFS and FreeBSD" was published in the February issue of the free online publication BSD Magazine. The target group of this magazine are users and friends of BSD operating systems.
The article summarizes the ZFS features, gives an overview of supported operating systems, provides links to useful resources and gives some FreeBSD tips.
Link to the free PDF issue: BSD Magazine 02/2011
Tuesday, 8. February 2011
FOSDEM 2011 - ZFS talk in BSD devroom
Last weekend (February 5th-6th) I visited the FOSDEM 2011 conference in Bruxelles, Belgium. The conference was crowded and many open source projects have been presenting their latest work. The FreeBSD project (where I am developer at) was present with a stand and I met several co-developers there. There have been lots of interesting talks, I was mainly interested in the Debian GNU/kFreeBSD presentation and the various MySQL and PostgreSQL talks - topics I deal with every day.
On Saturday, February 5th, I held a ZFS talk in the BSD devroom called "ZFS in Open Source Operating Systems" that was based on my previous talks. Download PDF with presentation slides Continue reading "FOSDEM 2011 - ZFS talk in BSD devroom" »
Wednesday, 2. February 2011
Creating and working with ZFS pools, datasets and snapshots (in Slovak)
On the czech root.cz server another two of my tutorial ZFS articles have been published (in Slovak language):
Original title: ZFS: vytvárame a upravujeme základ pre naše dáta" and "Snímky súborového systému ZFS"
Tuesday, 25. January 2011
ZFS Filesystem - Data Consistency (in Slovak)
An article of mine (in Slovak language) was published at the Czech IT server root.cz.
Original title: Súborový systém ZFS - konzistentnosť dát
Original title: Súborový systém ZFS - konzistentnosť dát
Friday, 21. January 2011
Tutorial: native ZFS on Ubuntu and Fedora Linux
ZFS is a great filesystem and making it available for Linux opens a bridge between Solaris, FreeBSD and Linux.
KQ Infotech has released the source of their ZFS port to the general public, using pool version 28. You can get more information at their webpage: kqstor.com Source code is available at github.com.
In this arcicle I am giving a tutorial how to build from source and install packages of native ZFS kernel modules for Ubuntu/Debian and Fedora Linux.
You need a x86_64 version (64-bit) of the Linux distributions.
NOTICE: tutorial is obsolete, please visit Native ZFS for Linux Homepage Continue reading "Tutorial: native ZFS on Ubuntu and Fedora Linux" »
Monday, 13. December 2010
ZFS introductory talk at the Slovak University of Technology in Bratislava
Another of my ZFS talks was an introductory talk at the Slovak University of Technology in Bratislava on December 8, 2010.
The talk was held in the slovak language with the translated title "ZFS from the viewpoint of a system administrator".
Many thanks to the organizer - The HOW-KNOW Project [1] (joint project of the student organization YNET [2] and IAESTE Slovakia [3]).
Presentation slides (in slovak language)
Link to a video recording will follow. Continue reading "ZFS introductory talk at the Slovak University..." »
Wednesday, 20. October 2010
Viewing ZFS statistics with zfs-stats
The FreeBSD operating system collects statistical data from the ZFS subsystem using mechanisms originating from the OpenSolaris kstat framework.
This data is stored in sysctl variables (sysctl kstat.zfs). I have been recently working on improving a script named arc_summary.pl that was originally written by Ben Rockwood and modified by Jason J. Hellenthal. I have rewritten large parts of this script and renamed it to zfs-stats, as it's output is not limited to ARC anymore. Continue reading "Viewing ZFS statistics with zfs-stats" »
This data is stored in sysctl variables (sysctl kstat.zfs). I have been recently working on improving a script named arc_summary.pl that was originally written by Ben Rockwood and modified by Jason J. Hellenthal. I have rewritten large parts of this script and renamed it to zfs-stats, as it's output is not limited to ARC anymore. Continue reading "Viewing ZFS statistics with zfs-stats" »
