Talk on Open High Availability Clustering

by Mads
October 02, 2008 at 12:01 | categories: sun, solaris

Steve McKinty, Sun Microsystems will be in Denmark, because he is speaking at the Open Source Days 2008 conference and has offered to give an extra talk the day before the conference on Open High Availability Clustering. Steve has led The Solaris Clustering Geographic Edition team since 2005.

Open High Availability Cluster (OHAC) is the open-source code base of Solaris Cluster1, a high availability (HA) clustering solution from Sun Microsystems. The main difference between Open HA Cluster and Solaris Cluster is that Open HA Cluster doesn't provide an end-user product or complete distribution. Instead, it is an open source code base, along with build tools necessary to develop, build, and use the code.

The talk will take place Thursday October 2nd at the IT-University, Rued Langgaardsvej 7, 2300 Copenhagen S, in room 2A12 at 16.00

Please RSVP.


The term cluster is often associated today with High Performance Computing (HPC), but it also has a key role to play in the area of Business Continuity and High Availability. There is a lot of commercial interest in developing innovative solutions to these problems.

This talk will start with a brief description of the fundamentals of Business Continuity and how a High Availability framework such as Solaris Cluster can be used in that area, when combined with data replication technologies.

It will describe in more detail some of the work being done through the Open HA Cluster (OHAC) and related communities, and then will look at the technical details and progress of some projects that have been recently started by community contributors.

Lastly I'll discuss other opportunities for joint work and contributions with the OHAC members.

There will be time for questions on any aspects of Open HA Cluster and Business Community.

Open Source Days 2008 - talks to see

by Mads
September 30, 2008 at 14:23 | categories: opensource


I get enough exposure to Sun Cluster at work, that any other little tips and tricks are well worth the time and I'm looking forward to Steve McKintys talk. My own talk will be pretty hard to skip, so that's obvious. Dave Johnsons roller talk is something I've been wanting to hear at ApacheCon, but things didn't work out so far. It's always good to keep up with what goes on in other ASF projects and seeing what a fellow member has to say. Last slot goes to hearing about xVM server, which is something I keep wanting to have a closer look at, but just never getting that far.


Another round of good Postgres talks to start off the day, and given that we use nagios for that's a given as well. My own Saturday talk will be rather different from my usual talks, so I'm looking forward to seeing how that works out. Dan Klein is always interesting and going by the description of this years keynote, we're in for another treat.
This year we've also got an Open source project booth for the Danish OpenSolaris user group where I'll probably be spending the rest of Saturday.

Open Source Days 2008

by Mads
September 29, 2008 at 15:28 | categories: opensource

It's time for Open Source Days 2008. This time I've got two sessions:

OpenSolaris Storage Platform - Storage revolution in the making

Friday 3. October 12:30

Along with their release of Solaris as open source, Sun has slowly been releasing most of their storage software.
At the core of this effort is the widely acclaimed ZFS. This talk will be a high level introduction to some of the other storage technologies available today or in the near future. Topics include in-kernel CIFS support, remote replication with AVS, iscsi and scsi (comstar) target support, SamFS hierarchical storage management and higly scalable filesystems such as QFS and pNFS.

Developers guide to grumpy old Sysadmins

Saturday 4. October 13.00

Image by: Hong. Kong Phooey

Blues blogging - Johnny Lang

by Mads
June 13, 2008 at 23:06 | categories: soulfood

Most of the music I listen to is either Blues or something closely related. Ten years ago when the fabulous movie Blues Brothers 2000 came out, there was some very great music in it. Many good old classics and then there was a 17 year old Jonny Lang with a voice that sounded more like a 40-year-old blues veteran than a North Dakota farm boy.

So what to choose as an example? I went with "Wander this world" because of the lyrics. YouTube didn't have one with images and good sound, so this is sound only.

Upgrading to Solaris 10 5/08

by Mads
April 28, 2008 at 22:09 | categories: sun, solaris

I ran into a small issue when I was live upgrading a Solaris 10 8/07 (update 4) to 10 5/08 (update 5). Somewhere well over six hundred packages failed to install according to the log. Looking closer at the log, it was all the same:

Cannot find required executable /usr/bin/7za
pkgadd: ERROR: class action script did not complete successfully

Asking a bit around, I found that /usr/bin/7za appears as part of SUNWbzip but not until 5/08. The easy fix was to manually install SUNWbzip and starting the upgrade once more.

Other new features in 5/08 are listed here. For me the only really interesting feature is CPU capping which may come in hand for some of our zone servers at the ASF.

Update: Ryan Novosielski tells me that there's a patch to supply 7zip: 137321-01 for sparc and 137322-01 for x86. I suppose that's the official way (although the LU installer should supply it). Adding the package as I wrote before works just as well.

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