Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
From: "Jeronimo L. Cabral" <jelocabral at gmail.com> > I have a DRBD [cluster, consisting of] two Elastix / CentOS servers. It > works OK. But after that I need to install some extra packages from > [the] Elastix repositories via yum. How can I do that? Add the appropriate repository to /etc/yum.repos.d/ , then "yum install -y PACKAGE1 PACKAGE2 PACKAGE3..." . If these packages are built the way RPMs usually are built, then they will only install things in /usr and possibly /var . > Maybe stopping the drbd service in both servers and installing the > packages, or installing the packages in the active drbd server and > after that, [moving] to the secondary server and [making it primary] > and after that [installing] the packages? If this is a primary/secondary setup, then you'll probably need to install the packages on both machines. Sharing /usr via DRBD in a primary/secondary setup is not possible (or at least, not smart) because the secondary machine won't have /usr available. Similar things for /var . As far as I can tell, most people using DRBD tend to make a mountpoint called /data or /drbd or something like that, then have the primary mount the DRBD device on that mountpoint. Then you have your database/fileserver/Xen VMs/whatever live on /drbd . If at all possible, you'd have your Elastix config set up so that the active server kept its important data on /drbd , so that when the primary machine dies, the cluster manager promotes the secondary machine, various scripts run, the new primary mounts /drbd, and Elastix starts on the new primary. So, users only notice a few seconds of downtime. I think. I've never heard of Elastix before today, though, so there may be details that I don't know about. -- Matt G / Dances With Crows The Crow202 Blog: http://crow202.org/wordpress/ There is no Darkness in Eternity/But only Light too dim for us to see