Recovering From Failures During Failovers And Psoff/Cut Power - HP XP P9500 Software User's Manual

Internal storage system failure
◦
Line failure
◦
#
PSOFF refers to when a storage system is turned off, whereas severed power refers to when the
supply of electricity to the storage system is cut off, such as during a power outage.

Recovering from Failures during Failovers and PSOFF/Cut Power

Table 105 (page 571)
Table 105 Procedures for Recovering from Each Failure Type
Failure Type
General
Failure during a
failover
PSOFF or cut
power
lists the procedures for recovering from failures for each failure type.
Copy Pair Status after a Failure
Specific P-VOL
Failure after DUPLEX or
PENDING
YKSUSPND
processing with
REVERSE
specified.
Failure after SUSPER
YKRESYNC
processing with
REVERSE
specified.
SUSPER
PSOFF for the PSOFF
primary DKC.
(if the status of the
S-VOL after being
turned on is
SUSPCU/
SUSPER/
Cause of Failure
S-VOL
SWAPPING Transmission
failure on the line
between the
storage systems.
SWAPPING
The size of the
P-VOL is
greater than
that of the
S-VOL.
A limitation
exists with
another
program
product with
which the
volume is
shared
An old P-VOL is
online.
Other
SWAPPING A transmission
failure occurred
when the status
was reversed for a specified, for the
copy pair for
which the copy
direction cannot
be reversed.
Same as the pair PSOFF for the
status during primary DKC.
failure
(after the DKC is
turned on, the
status will change
Recovering from a Failure 571
Recovery
Procedures
Execute
YKRESYNC twice
with REVERSE
DEVN specified
(the first time an
error will occur,
but normal
termination is
performed the
second time).
Remove the
problem
preventing the
copy direction
from being
reversed.
Execute
YKRESYNC with
REVERSE
DEVN
VOLUNIT
specified, for
the volume in
the SWAPPING
status for the
copy pair for
which the copy
direction could
not be
reversed.
Execute
YKRESYNC with
REVERSE DEVN
volume in the
SWAPPING status
for the copy pair
for which the copy
direction could not
be reversed.
To perform
operations from a
secondary DKC
without waiting for
recovery of the
primary DKC,