HP XP P9000 Business Continuity Manager User Guide (T5253-96086, November 2013)

Table 112 Using a 4x4x4 Cascade Configuration
SeeDescriptionTarget
Maintenance or
FailureNumber
“Performing primary
site storage system
Suspend Continuous
Access Synchronous Z
Primary site storage
system maintenance
Maintenance1
maintenance”
(page 494)
copy pairs, and then
change the
configuration to a 4x4
configuration
(Intermediate →
Remote).
“Performing
intermediate site
Suspend Continuous
Access Synchronous Z
Intermediate site
storage system
maintenance
2
storage systemcopy pairs, and then
maintenance”
(page 498)
resynchronize them
after maintenance has
finished.
“Performing remote
site storage system
Suspend Continuous
Access Journal Z copy
Remote site storage
system maintenance
3
maintenance”
(page 502)
pairs, and then
resynchronize them
after maintenance has
finished.
“Performing primary
site host maintenance”
(page 504)
Perform a reverse
resync on Continuous
Access Synchronous Z
Primary site host
maintenance
4
copy pairs, and then
change the
configuration to a
4x4x4 Multi- Target
configuration in which
operation is performed
from the intermediate
site.
—Operation in the 4x4x4
Cascade configuration
is not affected.
Intermediate site host
maintenance
5
—Operation in the 4x4x4
Cascade configuration
is not affected.
Remote site host
maintenance
6
“Operating procedure
during a primary site
Suspend Continuous
Access Synchronous Z
Primary site storage
system failure (with
Failure7
storage system failurecopy pairs, and theninformation lost from
memory) (with information lostchange the
from memory)”
(page 509)
configuration to a 4x4
configuration
(Intermediate →
Remote). The
Continuous Access
Synchronous Z copy
pairs whose S-VOLs are
in the storage system in
which the failure
occurred must be
deleted and then
recreated.
“Operating procedure
during a primary site
Suspend Continuous
Access Synchronous Z
Primary site storage
system failure (with no
8
storage system failurecopy pairs, and theninformation lost from
memory) (with no informationchange the
492 Maintenance and troubleshooting operations