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/drbdm, where m 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.