HP StorageWorks XP Remote Web Console Software - Manual (Page 24)

status to SMPL, and the MCU detects the pair deletion (if path status is normal) and changes the
P-VOL status to PSUS.
When an XP Continuous Access pair is split or suspended, the MCU generates a service information
message (SIM). This SIM results in a trap indicating the reason for suspension.
XP Continuous Access LUSE pair status
For XP Continuous Access LUSE pairs only, PDUB (dubious) status indicates the status of the XP
Continuous Access LUSE volume pair is COPY or PAIR, but the status of one or more individual
LDEV pairs within the XP Continuous Access LUSE pair is SMPL or PSUE (due to some error condition).
XP Continuous Access Asynchronous pair status
The Suspending and Deleting transitional states occur when a request to change XP Continuous
Access Async pair status is accepted, but the change to the requested status (PSUS, PSUE, or SMPL)
is not yet complete. These states are not reported to the host. For Suspending, you and the MCU
can request the status change. For Deleting, only you can request the status change. If you requested
the status change, the final status is reported at the end of the transition. If an error caused the
status to change to PSUE, the suspended status is reported at the beginning of the transition.
Table 6 XP Continuous Access Asynchronous pair status descriptions
S-VOL access P-VOL access Description Pair status
Read/write Read/write Volume is not currently assigned to
an XP Continuous Access volume
pair. When this volume is added to
an XP Continuous Access pair, its
status changes to COPY. SMPL (simplex)
Read only Read/write Initial copy operation for this pair is
in progress. This pair is not yet
synchronized. When initial copy is
complete, the status changes to
PAIR. COPY
Read only Read/write Pair is synchronized. Updates to the
P-VOL are duplicated on the S-VOL. PAIR
24 Overview of XP Continuous Access operations