## Archive for March 2010

### Petabyte Scale Storage

March 20, 2010

I’ve never come across the Ceph filesystem project before but it is Open Source and it has just been merged in for the 2.6.34 linux kernel. It claims “Ceph is an open source distributed file system capable of managing many petabytes of storage with ease.” It looks like there is still quite a bit of […]

### Configuration Languages

March 19, 2010

I spotted this blog post about using (or not) domain specific languages to customise programs. I can’t help feeling there is an interesting overlap here with the way we configure entire systems, we all face similar problems they are just at different levels. Just because a piece of software can be configured using the full […]

### F12 ntp

March 19, 2010

To keep kerberos happy you need your client machines to have their clocks fairly well synchronised with the KDCs. The easiest way to achieve this is to use ntp. I’ve added an LCFG header, inf/options/ntp.h which uses the file component to do a simple setup on F12. The file /etc/ntp.conf now just contains: driftfile /var/lib/ntp/drift […]

March 10, 2010