HP StorageWorks XP Remote Web Console Software - Manual (Page 30)

the status of the secondary data volume to suspended, and the primary storage system detects the
pair suspension (if the path status is normal) and changes the primary data volume status to
suspended. When you release a pair from the primary storage system, the primary storage system
changes the status of the primary data volume and secondary data volume (if the path status is
normal) to simplex. When you release a pair from the secondary storage system, the secondary
storage system changes the secondary data volume status to simplex, and the primary storage
system detects the pair release (if the path status is normal) and changes the primary data volume
status to suspended.
When a URz data volume pair is split or suspended, the primary storage system generates a service
information message (SIM) to notify the host(s). If SNMP is installed and operational for XP disk
array, this SIM results in an SNMP trap which indicates the reason for suspension.
30 Overview of Universal Replicator for Mainframe Operations