Global Mailbox deployment modes

Sterling B2B Integrator and Global Mailbox can be deployed in active-active or active-passive modes.

Active-Active mode
In active-active mode, Sterling B2B Integrator nodes in all the data centers receive and process messages.
Active-Passive mode
In active-passive mode, Sterling B2B Integrator nodes (cluster) in stand-by data centers do not receive or process messages. However, Global Mailbox nodes in stand-by data centers are active and payloads are replicated to shared disks in the passive data center. Also, Global Mailbox management node user interface in the stand-by data center displays updated data.
Important: You must not configure immediate (synchronous) replication in the active-passive mode, because immediate replication is not as fault tolerant as delayed replication.
Sterling B2B Integrator databases must be manually synced to keep business processes, user configuration, and other Sterling B2B Integrator specific configuration the same across both clusters so that the passive Sterling B2B Integrator cluster is a warm standby, which can be made active quickly when required.

Planning and installation for both the modes involves the same activities and tasks. However, configuration of protocol adapters and Global Mailbox Event Rule Adapter is different in active-passive deployment. You can switch a Sterling B2B Integrator cluster (and there by the data center) to passive or active modes, based on your requirements.

For information about active-active and active-passive configuration, see Configuring active-active and active-passive deployment.