HP XP P9500 Storage - Manual (Page 374)

Table 106 Using a 3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration (continued)
See: Description Target Maintenance
or failure No.
“Performing
primary site Delete the Continuous Access Journal Z copy
pair between the primary site and the remote Primary site host maintenance 3
host site that is not the failover destination, and
maintenance”
(page 383) then reverse the copy direction of the other
Continuous Access Journal Z copy pair.
Then, create a Continuous Access Journal Z
copy pair between both remote sites, and
change the configuration to a 3DC
Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z)
configuration in which operation is
performed from the failover-destination
remote site.
-- Operation in a 3DC Multi-Target (Cnt Ac-J
Z x Cnt Ac-J Z) configuration is not affected. Host maintenance for remote site 1 or
remote site 2 4
“Operating
procedure Delete either Continuous Access Journal Z
copy pair, and then create a Continuous Primary site storage system failure (with
information lost from memory) Failure 5
during a Access Journal Z copy pair between remote
primary site sites 1 and 2, and then change the
storage system configuration to a 2DC configuration
failure (with (Remote 1 → Remote 2, or Remote 2 →
information lost Remote 1). When performing a failback,
from memory”
(page 388) you must re-create the Continuous Access
Journal Z copy pair you have deleted.
“Operating
procedure Primary site storage system failure (with no
information lost from memory) 6
during a
primary site
storage system
failure (with no
information lost
from memory)”
(page 393)
“Operating
procedure Migrate operation to remote site 2. To
perform a failback, perform a Reverse Storage system failure (with information
lost from memory) at the primary site and
remote site 1 7
during a Resync operation on the Continuous Access
storage system Journal Z copy pair between the primary site
failure (with and remote site 2, and then re-create the
information lost Continuous Access Journal Z copy pair
between the primary site and remote site 1.
from memory)
(volatile) at the
primary site
and remote site
1” (page 393)
“Operating
procedure Storage system failure (with no information
lost from memory) at the primary site and
remote site 1 8
during a
storage system
failure (with no
information lost
from memory)
at the primary
site and remote
site 1”
(page 396)
“Operating
procedure After error recovery, delete and re-create the
Continuous Access Journal Z copy pairs Storage system failure (with information
lost from memory) at remote site 1 or 2 9
during a between the primary site and the remote site
at which the failure occurred.
storage system
374 Maintenance and troubleshooting operations