DRBD Experiment
Experiment to play with drbd within vagrant
Usage
Boot up machines and provision server
vagrant up
Note: All commands are ran as root
On both machines [drbd-0, drbd-1] as root, create volumes
drbdadm create-md r0
drbdadm attach r0
On drbd-0, promote to primary. create filesystem and mount drive
drbdadm primary r0
mkfs.ext3 /dev/drbd1
mount /dev/drbd1 /mnt/drbd
Now that we have filesystem mount we can create files on new mount On drbd-0, create new files, unmount and demote to secondary
cd /mnt/drbd
touch my awesome new files
cd /mnt
umount /mnt/drbd
drbdadm secondary r0
On drbd-1, promote to primary, and mount drive
drbdadm primary r0
mount /dev/drbd1 /mnt/drbd
ls /mnt/drbd