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04
10
2007
Issues regarding HA-NFS with Heartbeat and DRBD on Slackware 12.0Posted by: Hans in SysAdminOur NFS server setup at our datacenter consists of two SuperMicro SC933 chassis, each with dual Intel Xeon 3 Ghz, 2GB memory, and 15 200GB SATA disks connected to a Areca ARC-1160 16-ports SATA RAID controller. High Availability by redundancy and fail-over is taken care of by Heartbeat and DRBD. This setup is responsible for serving up document roots for our web cluster through NFS, and it obviously is very important that it always works These systems run Slackware Linux, which has historically been my distro of choice for critical systems. When deploying Heartbeat on Slackware i ran into some issues which i’d like to share here. I won’t go into basic stuff like actually compiling and installing DRBD and Heartbeat, since that is pretty well documented in various other places, for starters the Linux-HA site (home of Heartbeat). Recently i had to install VMWare Server on a CentOS 4.4 x86_64 box for one of our clients. I ran a clean install of CentOS 4.4 from the server CD. The RPM install of VMWare Server went fine but during the vmware-config.pl step i ran into some trouble related to missing libraries. After some searching on Google i found an excellent post on the weblog of a CentOS developer named Karanbir Singh. To make everything work, you need to poison your 64-bit system with some 32-bit libraries I had to install the following packages to make things work (some are sucked in by dependancies):
After this vmware-config.pl ran flawlessly and VMWare Server is up and running! Tags: CentOS, VMWare ServerFollowing the great stick-everything-on-a-map rage i have just “GeoTagged” all my Flickr photo’s. Now you can find out exactly where every shot was taken See the result at http://www.flickr.com/photos/hrak/map/ Tags: Flickr, GeoTagging, Photography, photos, picsI’ve built a bunch of new CentOS RPM’s from the recently released php-4.4.4. Just like last time, they’re available for both 32- and 64-bit Intel architectures, and although i’ve tested and use them myself, they come with absolutely no guarantee You can get them here Tags: CentOS, PHP, PHP4, RPMSBeen a while since my last post At the moment, we mostly run Slackware and Gentoo based servers at my workplace. Since the number of servers is steadily growing (currently 30-something servers), so is the maintenance. This is why i’ve been doing some research on more maintenance-friendly distros, one of which is CentOS, the community release of Red Hat Enterprise Linux. So far i am really impressed by CentOS, and i’m getting more into the whole RPM buzz. I have always been a ‘compile-it-yourself’ person, and never really been a fan of RPM, but i’m starting to see the benefits now The only thing i was a bit bummed about, was the relatively old version of php that came with CentOS 4.3. Since we run the latest version of PHP4 on most of our servers, i’ve been looking into rolling my own RPMs. After a bit of research on rpmbuild and related tools, the result is a bunch of PHP-4.4.2 RPMs for both 64-bit (x86_64) and 32-bit (i386) servers. And since CentOS is the community version of RHEL4, i thought i’d share these with the world. You can find them here. Ofcourse the usual disclaimers apply Ik ben vorig weekend samen met Jasper op pad geweest om wat te experimenteren met IR fotografie. Hierbij een van de eindresultaten. Even snel gepost, eigenlijk meer als smerig excuus om de integratie van Flickr met Wordpress eens te checken Daar gaat ie dan, de eerste post op mn blogje! Misschien wordt het nog wat, als ik de discipline op kan brengen Moet nog wel ff een nieuwe (eigen) look en een fatsoenlijke naam tegenaan in ieder geval! |


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