HP StorageWorks XP Remote Web Console Software - Manual (Page 37)

A volume which is not assigned to a Universal Replicator for Mainframe data volume pair has the
status simplex. When a Universal Replicator for Mainframe data volume pair is started, the primary
storage system changes the status of the primary data volume and secondary data volume to
pending duplex. When the initial copy operation is complete, the primary storage system changes
the status of both data volumes to duplex. When a pair is suspended 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 suspended. When a pair is suspended from the
secondary storage system, the secondary storage system changes 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 Universal Replicator for Mainframe 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
Pair Status 37