[DRBD-user] DRBD is deadly slow.

[Balreddy Medipally]

 Hi All,

        I am running DRBD 8.3.0 on RedHat Enterprise Linux AS 4.8 64-bit
OS for production purpose. MySQL works superfast in when load was not
there, when load was there it become deadly slow. Can any one please
help me to make it faster.

Here is my drbd.conf file.

[r...@imi-drbd1 ~]# cat /etc/drbd.conf
resource drbd0 {
protocol C;
startup {
become-primary-on both;
}
net {
allow-two-primaries;
cram-hmac-alg sha256;
shared-secret DRBD2KVM123456;
after-sb-0pri discard-least-changes;
after-sb-1pri violently-as0p;
after-sb-2pri violently-as0p;
rr-conflict violently;
}
syncer {
rate 44M;
}

on imi-drbd1 {
         device           /dev/drbd0;
         disk             /dev/sda2;
         address          ipv4 192.168.168.1:7768;
         meta-disk        internal;
}
on imi-drbd2 {
         device           /dev/drbd0;
         disk             /dev/sda2;
         address          ipv4 192.168.168.2:7768;
         meta-disk        internal;
        }
}
[r...@imi-drbd1 ~]#

Thanks,
BalReddy.
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