English to Dutch Tech/Engineering

Dit woord komt voor in diverse foutmeldingen van het besturingssysteem, zoals:
"The cluster resource could not be deleted or brought offline because it is the quorum resource"
"The cluster could not make the specified resource a quorum resource because it does not belong to a shared storage class"
"The quorum resource failed to come online"
"The quorum log could not be created"

Heeft iemand enig idee wat quorum hier betekent?

Jacki