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Remote copy connections

Figure 9 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, ﬁbrecablesupto30kminlengthanduptotwoswitchesarerequiredfor

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 con

nections 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 9 Continuous Access XP Journal remote copy connection conﬁguration

The remote copy connection between primary and secondary array provides the following conﬁgurations:

• Direct connections

Figure 10 Direct remote copy connections

• Switch connections

Continuous Access XP Journal user guide

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Hp XP Continuous Access Software Manual do Utilizador Página 59