do a master and slave server have to be physically identical? i have 2 dl380 servers, both running 4gb ram. At the minute thats where the similarity ends as number 2 isnt configured its an empty brain. the first (server1) is all set up and running from your tutorials (thankyou falko) it has 4 146gb disks running 3 in raid5 and 1 spare. would server number 2 have to be setup with the same configuration? would i be able to use the server back up guide ghost4linux to copy all the info from server 1 to server 2 then change the name server1.myhost.com:192.168.101 to server2.myhost.com:192.168.102 and then follow the load balancer how to's?
eerrrrr don't know. possibly DNS as i dont have ispconfig. Basically what im thinking about doing is having server2 mirror server1 so that if one goes down the other kicks in.
I have apache2, courier,postfix,mysql, its a web server currently running 5 of my own sites, so yes to all of the above as its not solely one or the other. I have set it up using your how to's for debian lenny perfect server setup, virtual hosts, and email.
You could sync most of the stuff with rsync (or use a cluster filesystem, e.g. GlusterFS), and for the database you could use MySQL replication. But do you have a failover IP that you can switch from one server to the other if a server fails?
I dont have anything at the moment falko, like i say ive just bought the second server and it has no disks yet. If i have one server set up using 146gb disks does the second need to be setup with 146gb disks? if server1 has 3 in raid 5 and 1 spare does server2 need to be setup with 3 disks in raid 5 and 1 spare. i dont want to set up the hardware of server2 physically wrong then find out the software wont work later.
