Using cli commands to obtain status, Meaning of copy pair status – HP XP Racks User Manual
Page 78
Using CLI commands to obtain status
Business Continuity Manager obtains the types of copy pair statuses by using the commands
described in
Table 17 Types of copy pair statuses obtained by Business Continuity Manager
Description
Panel used to obtain the status
Command used to obtain
status
Obtains the copy pair status of a specific volume.
Volume Query Information panel
YKQRYDEV
command
Obtains the copy pair status for each copy pair based on
the copy pair status of the P-VOL and S-VOL.
Copy Group Pair Status panel
YKQUERY
command
YKEWAIT
command
Meaning of copy pair status
explains the meanings of the copy pair statuses obtained by Business Continuity
Manager and their relationship with copy types. For the correspondence with copy pairs in storage
systems, see
“Using the YKQRYDEV command to obtain the copy pair status of specified volumes”
.
Table 18 Meanings of the copy pair statuses obtained by Business Continuity Manager
Cnt Ac-J Z
TCA
Cnt Ac-S Z
BC Z
Meaning
Copy pair
status
Yes
Yes
Yes
Yes
Initial status.
SIMPLEX
This status exists before the copy pair
is placed in the DUPLEX status or after
the copy pair is dissolved.
Yes
Yes
Yes
Yes
Copying processing from the P-VOL to
the S-VOL has completed, and the data
DUPLEX
is synchronized between the P-VOL and
the S-VOL.
Yes
Yes
Yes
Yes
Full copy (initial copy) or differential
copy (resynchronization) is performed
PENDING
from the P-VOL to the S-VOL in order to
reach the DUPLEX status. This status
occurs after copy pair creation is
requested from the SIMPLEX or
suspend status. The DUPLEX status
occurs after the copy is completed.
Yes
Yes
Yes
Yes
Data sychronization on the P-VOL and
S-VOl is temporarily stopped by the
YKSUSPND
command.
SUSPOP
Yes
Yes
Yes
N/A
Data synchronization on the P-VOL and
S-VOL is temporarily stopped due to an
SUSPCU
automatic transition performed by the
control unit.
Yes
Yes
Yes
Yes
Data synchronization on the P-VOL and
S-VOL is temporarily stopped due to a
hardware failure or a similar cause.
SUSPER
Yes
Yes
Yes
Yes
Copying of differential update data is
being performed to ensure that the
TRANS
volume status can be changed to
SUSPOP
or SIMPLEX.
NOTE:
In this status, copy pair
dissolving is not allowed because the
data is not guaranteed.
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Business Continuity Manager with replication products