HP XP Continuous Access Software User Manual

Page 31

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XP Continuous Access Journal pair status

The XP Continuous Access Journal Suspending and Deleting transitional states occur when a
request to change the XP Continuous Access Journal pair status is accepted, but the requested
status change (PSUS, PSUE, or SMPL) is not complete yet. These states are not reported to the
host. For Suspending, either you or the primary array 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.

C × (u ч 100) Ч 1,024 ч V

where:

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

).

Table 3 XP Continuous Access Journal data volume pair status

Secondary data volume
access

Primary data volume
access

Description

Pair status

Read / Write

Read / Write

Volume is not currently
assigned to an XP

SMPL (simplex)

Continuous Access
Journal data volume pair
and does not belong in
the journal group. When
this volume is added to
an XP Continuous Access
Journal data volume pair,
its status changes to
COPY.

Read Only

Read / Write

Initial copy operation for
this pair is in progress.

COPY

This data volume pair is
not yet synchronized.
When the initial copy is
complete, the status
changes to PAIR.

Read Only

Read / Write

Data volume pair is
synchronized. Updates to

PAIR

the primary data volume
are duplicated on the
secondary data volume.

XP Continuous Access Journal data volume pair status

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