DRBD - nodes with Dissimilar Hardware/Storage supported ?
this is a homework type question
we have dissimilar hardware on both nodes, one(Primary server) is Physical Machine with the partitions to be protected on reall/physical Hard Drvives, while the other one(Secondary) is a VMware ESX virtual machine, having file based disk storage.
We are interested to protect(via DRBD) /oracle file system.
on primary server we have a partition/filesystem named /oracle of size about 1.8 TB, while its usage is only about 400 GB.
On secondary machine which is a VMware ESX based virtual machine, we only have 1 TB disk space available for /oracle.
As /oracle file system is only consuming 400 GB on primary server, but the actual size of /oracle file system is 1.8 TB, and we can create /oracle on secondary node of about 1 TB only, therefore we are considering to use "thin provisioning" for /oracle on Secondary node.