How can one create a replicated data object?
There are three ways of creating a replicated data object. In the first method, which can be viewed as asynchronous replication, one can create a data object (using Sput Scommand or srbObjCreate API), and then replicate the data object using the Sreplicate Scommand or the srbObjReplicate API. In the second method, which can be viewed as synchronous replication, one can define a ‘logical resource set’ as a set of resources and then create a data object in that logical resource set (using Sput Scommand or srbObjCreate API). SRB automatically replicates the data object as it gets written. One can also off-line create two data objects separately in a physical resource and then register them as replicas of each other. This is called out-of-band replication. SRB provides the means to replicate collections of data objects recursively. Also see “Replicated Data Management user SRB” (GGF-4, February, 2002) at http://www.sdsc.edu//srb/Pubs/SRBReplication.ppt.
