IRIDIA cluster backup files

This page contains information on how to stop the cluster and on what files to backup before reinstalling everything.

Stopping the current operation

Log on to majoranaas root, do a qstat to see if anyone is using the cluster, if not stop the Sun Grid Engine (SGE):

/etc/init.d/rcsge stop

Backing up important files

Backup the follow directories from majorana:

/home                    (Users' home directories)
/etc                     (User passwords, conf files for NIS, NFS, ..) 
/usr/local/sge           (Sun Grid Engine)
/usr/src/ganglia         (Ganglia)
/usr/lib/fai             (Fully automated installation)
/usr/share/fai           (Fully automated installation)
/usr/local/share/fai     (Fully automated installation)
/root                    (Scripts etc.)

Backup the following directories from polyphemus

/etc                     (Misc configuration files)
/root/flexlmd            (FlexLM license manager files)
/var/flexlm              (More FlexLM)
/etc/init.d/flexlmd      (More FlexLM)
/etc/rc*/*80flexlmd      (More FlexLM)
/etc/flexlm              (More FlexLM)
/root                    (Scripts etc.)

Backup the following directories from one diskless node and one rack node:

/etc

Note: Some directories you can simply tar and compress, while that might take a bit too long/too much space for the home directories. In those cases rsync can prove useful.