In this section we will cover adding more database servers so afsdb1 is not a single point of failure. First, add the new hosts to afsdb1: ssh afsdb1 bos listhosts afsdb1 bos addhost afsdb1 afsdb2.classroom.sinenomine.net -localauth bos addhost afsdb1 afsdb3.classroom.sinenomine.net -localauth bos listhosts afsdb1 cat /usr/afs/etc/CellServDB Then, restart the server and then check the logs: service openafs-server restart cat /usr/afs/logs/PtLog cat /usr/afs/logs/VLLog cat /usr/afs/logs/BosLog Now configure the new hosts, afsdb2 and afsdb3 using the steps : ssh afsdb2 scp afsdb1:/usr/afs/etc/* /usr/afs/etc/ ls /usr/afs/etc/ cat /usr/afs/etc/CellServDB service openafs-server start bos create afsdb2 ptserver simple /usr/afs/bin/ptserver -localauth bos create afsdb2 vlserver simple /usr/afs/bin/vlserver -localauth bos status afsdb2 -long cat /usr/afs/logs/BosLog cat /usr/afs/logs/VLLog cat /usr/afs/logs/PtLog As the name says, udebug returns information important to finding and debugging an error. Now run the udebug command for each of the hosts: udebug -server afsdb1 -port 7003 udebug afsdb2 7003 udebug afsdb3 7003 A command used to find a client or server over a network is rxdebug: rxdebug Sine Nomine Associates Nov 2017