S-vol
P-vol
P-jnl S-jnl
S-volS/P-vol
Cascaded (1:1:1)
25339a
Direction of data ow
P-jnl S-jnl
S-volP/P-vol
Multi Target (1:2)
Direction of data ow
Figure 116 XP Continuous Access 3DC configuration
.
XP Continuous Access configuration support
This section describes the products and maximum distances supported for the following XP Continuous
Access configuration types:
• Direct storage-to-storage
• Fibre Channel switches
• ESCON directors and repeaters
• WDM
• ATM and SONET/SDH
• FCIP and routing extension
SAN Design Reference Guide 339
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