HP StorageWorks XP Remote Web Console Software - Manual (Page 52)

Setting up Remote Copy Connections
Figure 9 (page 52) shows the remote copy connection configurations for XP Continuous Access
Journal operations. The primary storage system and secondary storage system for each XP
Continuous Access Journal pair must be connected via optical fiber cables.
•
If you use multimode short-wave 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 long-wave optical fiber cables, fibre cables up to 30 km in length and
up to two switches are required for distances greater than 10 km.
•
XP Continuous Access Journal operations can be performed at distances of up to 30 km (18.6
miles) using standard single-mode long-wave support.
◦ For further distance, channel extender connections are required.
◦ For distances greater than 43 km (26.7 miles), approved channel extender products and
telecommunications lines are required.
Figure 9 XP Continuous Access Journal Remote Copy Connection Configurations
The remote copy connection between the primary and secondary storage systems can be configured
in three ways:
•
Direct connection (see Figure 10 (page 53) )
•
Switch connection (see Figure 11 (page 53) )
•
Extender connection (see Figure 12 (page 53) )
52 Preparing for XP Continuous Access Journal Operations