HP xp12000 User Manual page 26

Table 6 Continuous Access XP Asynchronous pair status descriptions (continued)
Pair status
PSUS
(pair suspended-split)
(see Table 7 on page 28
for split types)
PSUE
(pair suspended-error)
(see the table in
page 28 for suspend types)
26 Continuous Access XP for the XP12000/XP10000
Description
Pair is not synchronized because you split this
pair (pairsplit-r) or deleted this pair from the
RCU (pairsplit-S). For
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.
Pair is not synchronized because the MCU or
RCU suspended the pair due to an error
condition. For
Table 7 on
pairs, the MCU and RCU track recordsets
discarded during the suspension operation.
The MCU tracks P-VOL cylinders updated
while the pair is suspended.
Continuous Access XP
For
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
Asynchronous suspension conditions" on
page 30), 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
Asynchronous suspension conditions" on
page 30), 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.
Continuous Access XP
Continuous Access XP
Async
Synchronous
"Continuous Access XP
"Continuous Access XP
P-VOL access S-VOL access
Read/write Read only;
Read and write,
if write enable
split option is
selected.
Read/write; Read only
Read only if
fenced.