Conducted virtual organization (VO) membership service analyses has shown that server backend does not provide flexible solutions to ensure high availability. Methods for VO database multi-master replication at the application layer has been formed. Methods has been implemented in the developed software named PHP VOMS – Admin. Replication–enabled instances of the developed service has been deployed into operation of MolDynGrid, NetworkDynamics and testbed.univ.kiev.ua virtual organizations in Ukrainian National Grid .
grid, virtual organization, virtual organization membership service (VOMS)