HP XP Racks - Manual (Page 373)

Table 106 Using a 3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration (continued)
See: Description Target Maintenance
or failure
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
“Operating procedure
during a primary site storage Delete either Continuous Access Journal Z copy pair,
and then create a Continuous Access Journal Z copy Primary site storage system
failure (with information lost
from memory) Failure
system failure (with pair between remote sites 1 and 2, and then change
information lost from
memory” (page 386) the configuration to a 2DC configuration (Remote 1
→ Remote 2, or Remote 2 → Remote 1). When
performing a failback, you must re-create the
“Operating procedure
during a primary site storage Primary site storage system
failure (with no information
lost from memory)
Continuous Access Journal Z copy pair you have
deleted.
system failure (with no
information lost from
memory)” (page 391)
“Operating procedure
during a storage system Migrate operation to remote site 2. To perform a
failback, perform a Reverse Resync operation on the Storage system failure (with
information lost from
failure (with information lost Continuous Access Journal Z copy pair between the memory) at the primary site
and remote site 1
from memory) (volatile) at primary site and remote site 2, and then re-create the
the primary site and remote
site 1” (page 391) Continuous Access Journal Z copy pair between the
primary site and remote site 1.
“Operating procedure
during a storage system Storage system failure (with
no information lost from
failure (with no information memory) at the primary site
and remote site 1
lost from memory) at the
primary site and remote site
1” (page 394)
“Operating procedure
during a storage system After error recovery, delete and re-create the
Continuous Access Journal Z copy pairs between the Storage system failure (with
information lost from
failure (with information lost primary site and the remote site at which the failure
occurred. memory) at remote site 1 or
2
from memory) at remote site
1 or 2” (page 395)
“Operating procedure
during a storage system After error recovery, resynchronize the Continuous
Access Journal Z copy pairs between the primary site
and the remote site at which the failure occurred. Storage system failure (with
no information lost from
memory) at remote site 1 or
2
failure (with no information
lost from memory) at remote
site 1 or 2” (page 396)
“Primary site host failure
(when operations can be Delete either Continuous Access Journal Z copy pair,
and then reverse the copy direction of the remaining Primary site host failure
(When operations can be
performed on both Continuous Access Journal Z copy pair. Create a performed on both
Continuous Access Journal
Z copy pairs)” (page 398) Continuous Access Journal Z copy pair between both
remote sites, and then change the configuration to a Continuous Access Journal
Z copy pairs)
3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z)
configuration in which operation is performed from
the failover-destination remote site.
“Primary site host failure
(when operations can be Perform a Reverse Resync operation for the
Continuous Access Journal Z copy pair on which
operations can be performed. Primary site host failure
(When operations can be
performed on only one of
performed on only one of
the Continuous Access
Journal Z copy pairs) the Continuous Access
Using a 3DC Multi-Target (Cnt Ac-J Z x Cnt Ac-J Z) configuration 373