Using cli commands to obtain status, Meaning of copy pair status – HP XP P9500 Storage User Manual

Page 75

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Using CLI commands to obtain status

Business Continuity Manager obtains the types of copy pair statuses by using the commands
described in

Table 17 (page 75)

.

Table 17 Types of copy pair statuses obtained by Business Continuity Manager

Description

Panel used to obtain the status

Command used to obtain

status

No.

Obtains the copy pair status of a specific volume.

Volume Query Information panel

YKQRYDEV

command

1

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

2

Meaning of copy pair status

Table 18 (page 75)

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”

(page 77)

.

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

DUPLEX

completed, and the data is
synchronized between the P-VOL
and the S-VOL.

Yes

Yes

Yes

Yes

Full copy (initial copy) or
differential copy

PENDING

(resynchronization) is performed
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

SUSPOP

stopped by the YKSUSPND
command.

Yes

Yes

Yes

N/A

Data synchronization on the
P-VOL and S-VOL is temporarily

SUSPCU

stopped due to an automatic
transition performed by the
control unit.

Yes

Yes

Yes

Yes

Data synchronization on the
P-VOL and S-VOL is temporarily

SUSPER

stopped due to a hardware
failure or a similar cause.

Understanding copy group operations

75

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