Category Archives: Linux

About Linux related topics

“GFS2 rindex not found” when running gfs2-grow from gfs2-utils-3.0.6 in Fedora 12

GFS2 file system can’t grow due to rindex not found” error with version 3.0.6 of gfs2-utils. Updated .rpm for Fedora 12 is linked.

KVM/Qemu and caching of I/O

A feeble(ish) attempt at documenting the ‘cache’ properties for the Kernel Virtual Machine when managed by libvirtd.

Just completed: 256 KVM guests on a single 8-socket server

And yes, the environment was running real workloads (so not just a silly li’l httpd in each guest or any other ‘fake-out’ workloads to make the numbers seem good). We did execute a test where we tried to identify of how many total guests we could (be bothered to) create and run. These guests were…

Upgrading from Fedora 11 to 12: A preupgrade-cli problem

With the release of Fedora 12, I’ve started playing with the upgrade process from Fedora 11 to Fedora 12. I’m not a big fan of having to do clean installs as it also means a lot of migration work in terms of configuration files, etc. All of which takes a lot of time and effort. And,…

Getting ready for an industry conference

I wound up with more work on my plate this week in order to get ready for a large conference this summer where I need to talk about scalability, performance and virtualization of large scale-up platforms.