I am trying to setup DRBD on Ubuntu with an existing filesystem and when I run sudo drbdadm create-md r0 I get the following error message
md_offset 7889832898560
al_offset 7889832865792
bm_offset 7889592086528
Found LVM2 physical volume signature
7704911872 kB data area apparently used
7704679772 kB left usable by current configuration
Device size would be truncated, which
would corrupt data and result in
'access beyond end of device' errors.
You need to either
* use external meta data (recommended)
* shrink that filesystem first
* zero out the device (destroy the filesystem)
Operation refused.
Command 'drbdmeta 0 v08 /dev/sda4 internal create-md' terminated with exit code 40
Not sure what I am doing wrong. Could someone please explain this to me and provide how to fix it?