Availability of Global Mailbox management node

Global Mailbox management node provides the Global Mailbox administration user interface. At least one Global Mailbox management node must be available in a data center for an administrator to use the administration user interface.

Global Mailbox management node also performs non-inline payload replication. If any Global Mailbox managed node is not operational in a data center, then that data center cannot replicate non-inline payloads for files that are uploaded to other data center. Therefore, not having a Global Mailbox management node operational in a data center is equivalent to not having any replication server operational in the data center.

Global Mailbox management node also runs the scheduler. Some scheduled jobs operate on resources that belong to the local data center, for example, PayloadPurgeJob. If there are no Global Mailbox management nodes running in the data center, then the jobs that operate on the local data center resources do not run until a node is started on that data center.