HP XP P9500 Storage User Manual

Page 664

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Recovering from Failures during Failovers and PSOFF/Cut Power

Table 125 (page 664)

lists the procedures for recovering from failures for each failure type.

Table 125 Procedures for Recovering from Each Failure Type

Recovery
Procedures

Cause of Failure

Copy Pair Status after a Failure

Failure Type

S-VOL

P-VOL

Specific

General

Execute
YKRESYNC

twice

Transmission
failure on the line
between the
storage systems.

SWAPPING

DUPLEX or
PENDING

Failure after
YKSUSPND
processing with
REVERSE
specified.

Failure during a
failover

with REVERSE
DEVN

specified

(the first time an
error will occur,
but normal
termination is
performed the
second time).

SWAPPING

SUSPER

Failure after
YKRESYNC

Remove the
problem
preventing the

The size of the
P-VOL is
greater than

processing with

copy direction

that of the
S-VOL.

REVERSE
specified.

from being
reversed.

A limitation
exists with

Execute
YKRESYNC

with

another
program

REVERSE

product with

DEVN

which the

VOLUNIT

volume is
shared

specified, for
the volume in
the SWAPPING

An old P-VOL is
online.

status for the
copy pair for

Other

which the copy
direction could
not be
reversed.

Execute
YKRESYNC

with

A transmission
failure occurred
when the status

SWAPPING

SUSPER

REVERSE DEVN

was reversed for a specified, for the
copy pair for

volume in the

which the copy

SWAPPING status

direction cannot
be reversed.

for the copy pair
for which the copy
direction could not
be reversed.

To perform
operations from a

PSOFF for the
primary DKC.

Same as the pair
status during
failure

PSOFF

(if the status of the
S-VOL after being

PSOFF for the
primary DKC.

PSOFF or cut
power

secondary DKC
without waiting for

(after the DKC is
turned on, the

turned on is
SUSPCU/

recovery of the
primary DKC,

status will change

SUSPER/

664 Troubleshooting

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