HP XP Racks - Manual (Page 63)

Figure 24 A 4x4 configuration example
The 4x4x4 Cascade configuration
The 4x4x4 Cascade configuration is a combination of a 4x4 configuration and a 3DC Cascade
(Cnt Ac-S Z x Cnt Ac-J Z) configuration. This configuration is suitable for large-scale operations
because consistency can be preserved across multiple storage systems if the storage systems are
within the same extended consistency group (EXCTG).
Figure 25 (page 64) shows an example of a 4x4x4 Cascade configuration.
Replication products and data center configurations 63