HP StorageWorks XP Remote Web Console Software - Manual (Page 32)

32 Overview of Continuous Access XP Journal
• C is the master journal volume’s total capacity (in megabytes).
• u is the master journal volume’s data usage rate (as a percentage).
• V is the data transfer speed between the primary and secondary arrays. The unit is MB/s
(megabytes per second).
To find a journal volume’s usage rate, use the monitoring feature (see ” Monitoring remote copy
operations ” on page 135).
Table 4 Continuous Access XP Journal data volume pair status
Pair status Description Primary data
volume access
Secondary data
volume access
SMPL (simplex) Volume is not currently assigned to a Continuous
Access XP Journal data volume pair and does not
belong in the journal group. When this volume is
added to a Continuous Access XP Journal data
volume pair, its status changes to COPY.
Read / Write Read / Write
COPY Initial copy operation for this pair is in progress.
This data volume pair is not yet synchronized.
When the initial copy is complete, the status
changes to PAIR.
Read / Write Read Only
PAIR Data volume pair is synchronized. Updates to the
primary data volume are duplicated on the
secondary data volume.
Read / Write Read Only
PSUS
(pair suspended-split)
(see
Table 5 on
page 34 for split
types)
Data volume pair is not synchronized because
you split this pair (pairsplit-r) or deleted this pair
from the secondary array (pairsplit-S). For
Continuous Access XP Journal pairs, the primary
and secondary arrays keep track of any journal
data discarded during the pairsplit-r operation.
While a pair is split, the primary and secondary
arrays keep track of the updated primary and
secondary data volume tracks.
When you split a pair from the primary array, the
primary array changes the status of the primary
and secondary data volumes to PSUS. When you
split a pair from the secondary array, the
secondary array changes the secondary data
volume’s status to PSUS. The primary array
detects this (if path status is normal) and changes
the primary data volume’s status to PSUS.
When you delete a pair from the secondary
array, the secondary array changes the
secondary data volume’s status to SMPL. The
primary array detects this (if path status is normal)
and changes the primary data volume’s status to
PSUS. You must delete the pair from the primary
array to change the primary data volume’s status
to SMPL.
Read / Write Read Only;
Read / Write, if
write option is
enabled (Disable
is the default).