Hi Digimer,
Thank you for your reply.
Here is my environment and config details.
_*Disk info of both server:*_
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
xvda 202:0 0 8G 0 disk
└─xvda1 202:1 0 8G 0 part /
xvdb 202:16 0 2G 0 disk
On Saturday 07 May 2016 09:50 PM, Digimer wrote:
_*DRBD configuration:
*_resource r0 {
protocol C;
syncer { rate 1000M; }
startup {
wfc-timeout 15;
degr-wfc-timeout 60;
become-primary-on both;
}
net {
allow-two-primaries;
after-sb-0pri discard-zero-changes;
after-sb-1pri discard-secondary;
after-sb-2pri disconnect;
cram-hmac-alg sha1;
shared-secret "secret";
}
on drbd01 {
device /dev/drbd0;
disk /dev/xvdb;
address 10.98.0.114:7788;
meta-disk internal;
}
on drbd02 {
device /dev/drbd0;
disk /dev/xvdb;
address 10.98.10.241:7788;
meta-disk internal;
}
}
Regards,
Pratip Ghosh.
On 07/05/16 06:44 AM, Pratip Ghosh wrote:
Hello Guys,
I am a new user in this group and need some urgent help.
I am trying to configure HA storage using DRBD with OCFS2 on Ubuntu
14.04 at AWS EC2 instance. I configured both server as primary. If I
shutdown one server and start again it will automatically become primary
after booting process and have up-to date data in both servers, but if I
reboot any one server it was not connecting again as a primary after
booting process and showing following status in both servers. I have
restarted DRBD service in both server one by one but having same issue.
Can anyone guide me one this?
Server1
=====
root@drbd01:~# service drbd status
drbd driver loaded OK; device status:
version: 8.4.3 (api:1/proto:86-101)
srcversion: 6551AD2C98F533733BE558C
m:res cs ro ds p mounted fstype
0:r0 StandAlone Primary/Unknown UpToDate/DUnknown r-----
Server2
=====
root@drbd02:~# service drbd status
drbd driver loaded OK; device status:
version: 8.4.3 (api:1/proto:86-101)
srcversion: 6551AD2C98F533733BE558C
m:res cs ro ds p mounted fstype
0:r0 StandAlone Primary/Unknown UpToDate/DUnknown r-----
Regards,
Pratip Ghosh
This is the definition of a split-brain and it is the result of not
having fencing configured.
For a more useful answer, please share more information on your
environment and config.
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