Software

26 Continuous Access XP for the XP1024/XP128
PSUS
(pair suspended-split)
(see Table 6 on
page 27 for split
types)
Pair is not synchronized because you split this pair
(pairsplit-r) or deleted this pair from the RCU
(pairsplit-S). For
Continuous Access XP Async
pairs, the MCU and RCU track recordsets
discarded during the pairsplit-r operation. While a
pair is split, the MCU and RCU track P-VOL and
S-VOL cylinders updated.
When you split a pair from the MCU, the MCU
changes the status of the P-VOL and S-VOL to
PSUS. When you split a pair from the RCU, the
RCU changes the status of the S-VOL to PSUS. The
MCU detects this (if path status is normal) and
changes the P-VOL status to PSUS.
When you delete a pair from the RCU, the RCU
changes the S-VOL status to SMPL. The MCU
detects this (if path status is normal) and changes
the P-VOL status to PSUS. You must delete the pair
from the MCU to change the P-VOL status to SMPL.
Read/write Read only;
Read and write,
if write enable
split option is
selected.
PSUE
(pair suspended-error)
(see the table in
Table 6 on page 27
for suspend types)
Pair is not synchronized because the MCU or RCU
suspended the pair due to an error condition. For
Continuous Access XP Async pairs, the MCU
and RCU track recordsets discarded during the
suspension operation. The MCU tracks P-VOL
cylinders updated while the pair is suspended.
For
Continuous Access XP Synchronous pairs, if
the MCU cannot keep the pair synchronized for
any reason, the MCU changes the status of the
P-VOL and S-VOL (if possible) to PSUE.
For Continuous Access XP Asynchronous pairs, if
the MCU detects a suspension condition (see
”Continuous Access XP Asynchronous suspension
conditions” on page 29), the MCU changes the
P-VOL and S-VOL status (if possible) to PSUE.
For Continuous Access XP Asynchronous pairs, if
the RCU detects a suspension condition (see
”Continuous Access XP Asynchronous suspension
conditions” on page 29), the RCU changes the
S-VOL status to PSUE, and the MCU detects this (if
path status is normal) and changes the P-VOL
status to PSUE.
Read/write;
Read only if
fenced.
Read only
Pair Status for Continuous Access XP LUSE volumes only:
PDUB Continuous Access XP pair consists of LUSE
volumes (for example, OPEN3*n), and an
individual LDEV within this
Continuous Access
XP
LUSE pair failed due to some error condition.
The status of the
Continuous Access XP LUSE
volume is PAIR or COPY, and the status of one or
more LDEV pairs is PSUE or SMPL.
Read/write Read only
Table 5 Continuous Access XP Asynchronous pair status descriptions (continued)
Pair status Description P-VOL access S-VOL access