HP XP Racks - Manual (Page 155)

1
Replication between models of XP arrays is limited to the current model and two previous generations. For XP7 storage,
replication is supported with XP P9500 and XP24000/XP20000 directly. XP7 storage cannot directly replicate to or
from an XP12000/XP10000 disk array. It is possible to use an XP P9500 disk array, as an example, between an
XP12000 disk array and XP7 storage in a cascade configuration to move data between the XP7 storage and the XP12000
disk array.
Table 39 Storage System Setting Items (3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) Configuration)
Remarks Setting Description Item
If you use the Cnt Ac-J Z Suspend
function, set the timer type to
SYSTEM
.
Use Remote Web Console for the
setup. A journal group is required for both
the intermediate site and the remote
site.
Timer type: LOCAL.
Journal group
— One or more journal volumes are
required for both the intermediate
site and the remote site. Journal volume
— Use Business Continuity Manager
for the setup. Command devices that can be used
for the following route lists are
required (see
Table 41 (page 156) :
Command device
•
Route list required when all sites
are available
•
Route list used when a failure
occurs at a site (recommended)
— Use Remote Web Console or
Business Continuity Manager for
the setup. Logical path • An inter-control unit logical path
is required between the primary
site and the intermediate site (for
both directions).
• An inter-disk controller logical
path is required between the
intermediate site and the remote
site (for both directions).
Preparing the Configuration Files (3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z)
Configuration)
Table 40 (page 155) lists the configuration files required for using Business Continuity Manager in
a 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configuration.
Table 40 Required Configuration Files (3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) Configuration)
Remarks Description Item
— Disk configuration definition files are required for
primary, intermediate, and remote sites. Disk configuration
definition file
From the route list, you can omit the remote site for the
forward direction, and the primary site for the reverse Prepare the following route lists by referring to: Table 41
(page 156)
Route list definition file
and command device
definition file
direction. If they are omitted, the routes are: Primary →
•
Route list that is required when all sites are available
Intermediate (for the forward direction), Remote
→
Intermediate (for the reverse direction).
• Route list used when a failure occurs at a site
(recommended)
Defining a 3DC Cascade (Cnt Ac-S Z x Cnt Ac-J Z) configuration 155