[DRBD-user] Size of /dev/drbd0 is only in MB

Prahladkr prankplayer at gmail.com
Wed Oct 14 14:00:31 CEST 2009

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Hello EevryOne,

            I am new to DRBD so please don't mind my silly questions if i
ask any.  :)

I have installed and configured DRBD on two servers after bit of struggle
but strangely what i am noticing that 
the size of /dev/drbd0 is only in MBs where as i had expected it to be in

My drbd.conf file is as follows.

global {
  usage-count no;

resource mysql {
	protocol C;
	#incon-degr-cmd "halt-f";
#	handlers { pri-on-incon-degr-cmd "halt-f"; }
	startup {
	   degr-wfc-timeout 120; #2 minutes
	disk {
	   on-io-error detach;
	net {
	syncer {
	   rate 10M;
	   #group 1;
	   al-extents 257;
	on WFMS_DB1 {
		device	/dev/drbd0;
		disk 	/dev/sda3;
		meta-disk internal;
	on WFMS_DB2 {
		device  /dev/drbd0;
		disk 	/dev/sda3;
		meta-disk internal;

Here is the size of /dev/drbd0 which i have mounted over /drbd .

dev/drbd0            137M  5.6M  125M   5% /drbd

/dev/sda3 is having around 125Gb space available.

Please suggest any solution for this. Did i do anything wrong in
installation ?


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