HP XP20000/XP24000 HP StorageWorks MPX200 Multifunction Router User Guide (569 - Page 125
HP Continuous Access EVA 3–site configurations,
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Figure 91 MPX200 iSCSI and FCIP dedicated blades, both local and remote . HP Continuous Access EVA 3-site configurations This section describes the following HP Continuous Access EVA 3-site configurations: • HP Continuous Access EVA 3-site configuration with four MPX200 routers • HP Continuous Access EVA 3-site configuration with six MPX200 routers • HP Continuous Access EVA 3-site configuration with eight MPX200 routers • 3-site configuration with six gateways and full inter-site connectivity The first three configurations provide a fan-in or fan-out relationship between the sites. The fourth configuration provides a peer-to-peer relationship between all sites. Figure 92 shows connectivity for three sites using four MPX200 routers, which implement the minimum-level and lowest-cost connectivity for a 3-site configuration. Figure 93 shows additional connectivity and redundancy using six MPX200 routers. Figure 94 shows the highest level of 3-site connectivity using eight MPX200 routers. Figure 95 is similar to Figure 93, with additional connectivity to allow for replication between Site 2 and Site 3. The following configuration rules apply to Figure 92 through Figure 94 (fan-in/fan-out relationships): • For Site 1, Site 2 or Site 3 can function as the remote site. • For Site 2 or Site 3, Site 1 can function as the remote site. • Replication between Site 2 and Site 3 is not supported. The following configuration rules apply to Figure 95 (peer-to-peer relationship): • For Site 1, Site 2 or Site 3 can function as the remote site. • For Site 2, Site 1 or Site 3 can function as the remote site. • For Site 3, Site 1 or Site 2 can function as the remote site. MPX200 Multifunction Router User Guide 125