Dear List,

 

We are configuring DRBD for the first time using the DRBD manual. We are
planning to setup DRBD on our mail server running on RHEL 6.1 (64 bit), with
the sole objective to replicate the mail store and mail queue from our data
center to the DR site. Both the sites are connected with giga bit captive OF
network.

 

 

We have installed  the following drbd rpm that was built from the source
drbd-8.4.3.tar.gz :-

 

drbd-heartbeat-8.4.3-2.el6.x86_64

drbd-xen-8.4.3-2.el6.x86_64

drbd-km-debuginfo-8.4.3-2.el6.x86_64

drbd-udev-8.4.3-2.el6.x86_64

drbd-8.4.3-2.el6.x86_64

drbd-pacemaker-8.4.3-2.el6.x86_64

drbd-debuginfo-8.4.3-2.el6.x86_64

drbd-utils-8.4.3-2.el6.x86_64

drbd-km-2.6.32_131.0.15.el6.x86_64-8.4.3-2.el6.x86_64

drbd-bash-completion-8.4.3-2.el6.x86_64

 

We plan to have our meta data on a separate partition. The partition was
created with fdisk and is not having any file system created in it. The
configuration files drbd.conf, global_common.conf and maildrbd.res are
attached herewith for your kind reference.

 

After configuration we were proceeding further as per the manual. While
trying to enable the resources for the first time which are given as
follows:-

 

1.      Create device metadata . (drbdadm create-md r0) This step was
executed successfully at both the nodes.

 

2.      Attach to backing device. (drbdadm attach  r0). This step is
generating the following error :-

 

[root@drbdtest2 ~]# drbdadm attach r0

1: Failure: (116) Lower device / meta device / index combination invalid.

Command 'drbdsetup attach 1 /dev/sda2 /dev/sda2 flexible' terminated with
exit code 10

[root@drbdtest2 ~]#

 

This error is being generated at both the nodes. We tried to figure out the
solution using google search but could not make much headway. Would request
your help to resolve this issue.

 

Regards,

 

Goutam

 

# You can find an example in  /usr/share/doc/drbd.../drbd.conf.example

include "drbd.d/global_common.conf";
include "drbd.d/*.res";
global {
        usage-count yes;
        # minor-count dialog-refresh disable-ip-verification
}

common {
        handlers {
                # These are EXAMPLE handlers only.
                # They may have severe implications,
                # like hard resetting the node under certain circumstances.
                # Be careful when chosing your poison.

                # pri-on-incon-degr "/usr/lib/drbd/notify-pri-on-incon-degr.sh; 
/usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; reboot 
-f";
                # pri-lost-after-sb "/usr/lib/drbd/notify-pri-lost-after-sb.sh; 
/usr/lib/drbd/notify-emergency-reboot.sh; echo b > /proc/sysrq-trigger ; reboot 
-f";
                # local-io-error "/usr/lib/drbd/notify-io-error.sh; 
/usr/lib/drbd/notify-emergency-shutdown.sh; echo o > /proc/sysrq-trigger ; halt 
-f";
                # fence-peer "/usr/lib/drbd/crm-fence-peer.sh";
                # split-brain "/usr/lib/drbd/notify-split-brain.sh root";
                # out-of-sync "/usr/lib/drbd/notify-out-of-sync.sh root";
                # before-resync-target 
"/usr/lib/drbd/snapshot-resync-target-lvm.sh -p 15 -- -c 16k";
                # after-resync-target 
/usr/lib/drbd/unsnapshot-resync-target-lvm.sh;
        }

        startup {
                # wfc-timeout degr-wfc-timeout outdated-wfc-timeout 
wait-after-sb
        }

        options {
                # cpu-mask on-no-data-accessible
        }

        disk {
                # size max-bio-bvecs on-io-error fencing disk-barrier 
disk-flushes
                # disk-drain md-flushes resync-rate resync-after al-extents
                # c-plan-ahead c-delay-target c-fill-target c-max-rate
                # c-min-rate disk-timeout
        }

        net {
                # protocol timeout max-epoch-size max-buffers unplug-watermark
                # connect-int ping-int sndbuf-size rcvbuf-size ko-count
                # allow-two-primaries cram-hmac-alg shared-secret after-sb-0pri
                # after-sb-1pri after-sb-2pri always-asbp rr-conflict
                # ping-timeout data-integrity-alg tcp-cork on-congestion
                # congestion-fill congestion-extents csums-alg verify-alg
                # use-rle
        }
}

Attachment: maildrbd.res
Description: Binary data

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