HP StorageWorks XP Remote Web Console Software - Manual (Page 51)

Continuous Access XP Journal user guide 51
management for arrays and network relay devices ” on page 187 for more information about
powering off and on the primary and secondary arrays.
6. HP Representative: Install Continuous Access XP Journal remote copy connections between the primary
and secondary arrays. The user supplies this hardware (optical fibre cables, switches, and so on).
See ”
Remote copy connections ” on page 51 for remote copy configurations. Distribute the paths
between different storage clusters and switches to provide maximum flexibility and availability. Logical
paths between the primary and secondary arrays must be separate from logical paths between the
host and secondary array.
Remote copy connections
Figure 7 shows remote copy connection configurations for Continuous Access XP Journal operations. The
primary and secondary arrays of each Continuous Access XP Journal pair must be connected using
optical fiber cables. If you use multimode shortwave optical fiber cables, fibre cables up to 1.5 km in
length and up to two switches are required for distances greater than 0.5 km. If you use single-mode
longwave optical fiber cables, fibre cables up to 30 km in length and up to two switches are required for
distances greater than 10 km. You can perform Continuous Access XP Journal operations at distances of
up to 30 km (18.6 miles) using standard single-mode longwave support. For greater distances, channel
extender connections are required. You can perform Continuous Access XP Journal operations at
distances of up to 30 km (18.6 miles) using standard single-mode longwave support. For distances
greater than 43 km (26.7 miles), approved channel extender products and telecommunications lines are
required.
Figure 7 Continuous Access XP Journal remote copy connection configuration
The remote copy connection between primary and secondary array provides the following configurations: