I won't cover how to do this, there are many tools.
What you need is to make both /dev/sdb have identical partitions with no data.
In this example :
/dev/sdb1 = SQL DRBD
/dev/sdb2 = Web-Server DRBD
/dev/sdb3 = Data DRBD
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I won't cover how to do this, there are many tools.
What you need is to make both /dev/sdb have identical partitions with no data.
In this example :
/dev/sdb1 = SQL DRBD
/dev/sdb2 = Web-Server DRBD
/dev/sdb3 = Data DRBD