We support quotas at a vault level. MatrixStore objects are stored in vaults which are analagous to workspaces on ISIS . A vault is a secure virtual storage space within a cluster that allows data to be treated according to the policies that are provisioned upon that vault. Vaults allow several departments within the same organisation to share the MatrixStore cluster whilst keeping their data protected data from unauthorised access. Vaults automatically make use of any new storage capacity that is added without any manual intervention thus providing a highly scalable storage platform that requires very little management.