Continuous Access Xp Luse Pair Status; Continuous Access Xp Asynchronous Pair Status; Continuous Access Xp Asynchronous Pair Status Descriptions - HP StorageWorks XP12000 User Manual

or XP Remote Web Console GUI (Continuous Access XP Pairdisplay pane) or UNIX®/PC server host
(RAID Manager Pairdisplay command).
A volume not assigned to a Continuous Access XP pair has status SMPL. When a Continuous Access XP
pair is started, the MCU changes the status of the P-VOL and S-VOL to COPY. When the initial copy
operation is complete, the MCU changes the status of both volumes to PAIR. When you split a Continuous
Access XP pair (pairsplit-r), the MCU/RCU changes the status of the P-VOL and S-VOL to PSUS (if path
status is normal). When a pair is suspended due to an error condition, the MCU/RCU changes the P-VOL
and S-VOL status to PSUE (if path status is normal). When you delete a pair from the MCU (pairsplit-S),
the MCU changes the status of the P-VOL and S-VOL to SMPL (if path status is normal). When a pair is
deleted from the RCU, the RCU changes the S-VOL status to SMPL, and the MCU detects the pair deletion
(if path status is normal) and changes the P-VOL status to PSUS.
When a Continuous Access XP pair is split or suspended, the MCU generates a service information
message (SIM) to notify the hosts. This SIM results in a trap indicating the reason for suspension.

Continuous Access XP LUSE pair status

For Continuous Access XP LUSE pairs only, PDUB (dubious) status indicates the status of the Continuous
Access XP LUSE volume pair is COPY or PAIR, but the status of one or more individual LDEV pairs within
the Continuous Access XP LUSE pair is SMPL or PSUE (due to some error condition).

Continuous Access XP Asynchronous pair status

The Suspending and Deleting transitional states occur when a request to change Continuous Access XP
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 7 Continuous Access XP Asynchronous pair status descriptions
Pair status
SMPL (simplex)
COPY
PAIR
28
Continuous Access XP for the Array
Description
Volume is not currently assigned to a
Continuous Access XP volume pair. When
this volume is added to a Continuous
Access XP pair, its status changes to COPY.
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.
Pair is synchronized. Updates to the P-VOL
are duplicated on the S-VOL.
P-VOL access S-VOL access
Read/write Read/write
Read/write Read only
Read/write Read only