In DRBD, resource is the collective term that refers to all aspects of a particular replicated storage device. These include:
Resource name. This can be any arbitrary, US-ASCII name not containing whitespace by which the resource is referred to.
DRBD device. This is the virtual block device managed by DRBD. It
has a device major number
of 147, and its minor numbers are numbered from 0
onwards, as is customary. The associated block device is
always named
/dev/drbd,
where mm is the device minor
number.
![]() | Note |
|---|---|
Very early DRBD versions “hijacked” NBD's device major number 43. This is long obsolete; 147 is the LANANA-registered DRBD device major. |
Disk configuration. This entails the local copy of the data, and meta data for DRBD's internal use.
Network configuration. This entails all aspects of DRBD's communication with the peer node.