Elastix HA Using DRBD

AlyRagab

Dears,

i am trying to configure High Availability between two Elastix Servers using DRBD and Heartbeat Services but i have an Error to specify the primary server as the below :
first the below is a copy of the config file /etc/drbd.conf

global { usage-count no; }
resource r0 {
protocol C;
startup { wfc-timeout 10; degr-wfc-timeout 30; } #change timers to your need
disk { on-io-error detach; } # or panic, ...
net {
after-sb-0pri discard-least-changes;
after-sb-1pri discard-secondary;
after-sb-2pri call-pri-lost-after-sb;
cram-hmac-alg "sha1";
#shared-secret "Cent0Sru!3z";
}
syncer { rate 5M; }
on server1 {
device /dev/drbd0;
disk /dev/sda1;
address 192.168.1.104:7788;
meta-disk internal;
}
on server2 {
device /dev/drbd0;
disk /dev/sda1;
address 192.168.1.102:7788;
meta-disk internal;
}
}
##Note : master server IP is 192.168.1.102
##Note : slave server IP is 192.168.1.104
=========================================
after thet i run this command on both servers: 
#drbdadm create-md r0
then restarting the service 
#service drbd restart
but here i have the problem when i want to specify the primary server as the below command:
#drbdadm -- --overwrite-data-of-peer primary r0
i have the below Error:
0: State change failed: (-2) Need access to UpToDate dataCommand 
'drbdsetup 0 primary --overwrite-data-of-peer' terminated with exit code 17

thanks in advance

scottalanmiller

Did you run the needed command to set one as primary when you start up?

drbdadm -- --overwrite-data-of-peer primary drbd0

AlyRagab

When i run this command i have this Error :
0: State change failed: (-2) Need access to UpToDate data
Command 'drbdsetup 0 primary --overwrite-data-of-peer' terminated with exit code 17

scottalanmiller

What is the output of...

cat /proc/drbd

AlyRagab

@scottalanmiller
GIT-hash: 0ce4d235fc02b5c53c1c52c53433d11a694eab8c build by [email protected], 2013-03-27 16:01:26
0: cs:Unconfigured

scottalanmiller

@AlyRagab said:

@scottalanmiller
GIT-hash: 0ce4d235fc02b5c53c1c52c53433d11a694eab8c build by [email protected], 2013-03-27 16:01:26
0: cs:Unconfigured

That's not good, that's not what should be there at all.

AlyRagab

@scottalanmiller i used these packages " yum install heartbeat drbd83 kmod-drbd83 "
is this right or you can recommend something ?