HP XP Racks - Manual (Page 168)

Table 45 Required configuration files (3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration) (continued)
Remarks Description Item
This item is not necessary if you use
Remote Web Console to set up logical
paths. A path set consisting of inter-disk controller logical paths
(bidirectional) is required between the following sites: Path set definition
file
•
Primary site and intermediate site
•
Intermediate site and remote site
• Primary site and remote site
HP recommends that you specify a
non-zero value for Continuous Access Definition files for the following copy groups are required: Copy group
definition file
•
Continuous Access Journal Z copy group between the primary
site and the intermediate site
M-JNL number: Any value
Journal Z copy pair mirror IDs because 0
is used for Continuous Access
Synchronous Z copy pair mirror IDs, and
R-JNL number: Any value you might decide to change the
configuration at a later time to include
Mirror ID: A non-zero value that is different from the mirror
ID of any other Intermediate
→ Remote and Primary →
Remote Continuous Access Journal Z copy pairs
Continuous Access Synchronous Z copy
pairs.
•
Continuous Access Journal Z copy group between the
intermediate site and the remote site
M-JNL number: Same value as the R-JNL number between
the primary site and the intermediate site
R-JNL number: Any value
Mirror ID: A non-zero value is different from the mirror ID of
any other Primary
→ Intermediate and Primary → Remote
Continuous Access Journal Z copy pairs
• Continuous Access Journal Z copy group between the primary
site and the remote site
M-JNL number: Same value as the M-JNL number between
the primary site and the intermediate site
R-JNL number: Same value as the R-JNL number between the
intermediate site and the remote site
Mirror ID: A non-zero value that is different from the mirror
ID of any other Primary
→ Intermediate and Intermediate →
Remote Continuous Access Journal Z copy pairs
The following table describes the route list required for operation in a 3DC Cascade (Cnt Ac-J Z
x Cnt Ac-J Z) configuration.
Table 46 Required route list (3DC Cascade (Cnt Ac-J Z x Cnt Ac-J Z) configuration)
Required route list Remote site state Intermediate
site state Primary site
state Host on which Business
Continuity Manager is
started
Primary → Intermediate → Remote Usable Usable Usable Primary host
Primary → Intermediate Unusable Usable Usable
Primary → Remote Usable Unusable Usable
Not required Unusable Unusable Usable
Intermediate
→ Primary
Usable Usable Usable Intermediate host
Intermediate
→ Remote
Intermediate
→ Primary
Unusable Usable Usable
Intermediate
→ Remote
Usable Usable Unusable
Not required Unusable Usable Unusable
168 Configuration definitions