HP XP Racks - Manual (Page 454)

Table 110 Operation Examples in a 2DC Configuration with HyperSwap and Continuous Access
Journal Z (continued)
See Contents Target
Maintenance
or Failure
information lost from
memory) (with information lost from
memory)” (page 483) with information lost from memory.
Recover from the failure, and then
resynchronizes the Cnt Ac-J Z copy pairs.
“Operating procedure during a
remote storage system failure An operation example when the remote
storage system stops due to a failure, During a remote storage
system failure (with no
(with no information lost from
memory)” (page 486) with no information lost from memory.
Recover from the failure, and then information lost from
memory)
reconfigures the Cnt Ac-J Z copy pairs
after first dissolving them and canceling
their delta resync standby statuses.
“Operating procedure during a
primary host failure” (page 476) An operation example when the primary
site stops due to a primary host failure. During a primary host failure
This procedure reverses the copy
direction of copy pairs between the
primary storage system and the remote
storage system, in order to continue
operations at the secondary site.
“Operating procedure during a
path failure between the primary An operation example when a path
failure occurs between the primary During a path failure
between the primary storage
storage system and the local
storage system” (page 480) storage system and the local storage
system. This procedure suspends Cnt system and the local storage
system
Ac-S Z copy pairs with the HyperSwap
attribute, and then recovers the failure.
NOTE: The term "storage system failure, with information lost from memory," indicates a failure
that causes the loss of information in memory. In such a failure, the copy pair information and the
data are completely lost, so the hardware information must be reconfigured.
This section describes maintenance and troubleshooting procedures in a 2DC configuration with
HyperSwap and Cnt Ac-J Z.
The figures in the procedures contained in this section use the following legend:
The itemized lists under the figures in the procedures describe the commands that are executed in
the procedures.
Operation startup procedure
Business Continuity Manager provides commands for detecting HyperSwaps, such as YKCONMSG
and YKEWAIT.
Table 111 (page 455) describes the differences in functionality between the
YKCONMSG command and the YKEWAIT command.
454 Maintenance and troubleshooting operations