HP StorageWorks 4000/6000/8000 .HP StorageWorks SAN Design Reference Guide, Pa - Page 304
Site 1, mpx110, A2/B2, A3/B3
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Figure 96 shows connectivity for three sites using four mpx110 gateways, which implements the minimum-level and lowest-cost connectivity for a 3-site configuration. Figure 97 shows additional connectivity and redundancy using six mpx110 gateways. Figure 98 shows the highest level of 3-site connectivity using eight mpx110 gateways. The following configuration rules apply to Figure 96 through Figure 98 (fan-in/fan-out): • 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. Figure 99 is similar to Figure 97, with additional connectivity to allow for replication between Site 2 and Site 3. The following configuration rules apply to Figure 99 (peer-to-peer): • 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. Figure 96 shows long-distance link redundancy between all three sites. LAN Fabric A2 LAN Fabric A1 HP StoramgpexW10o0rks FC1 FC2 MGMT GE1 IOIOI GE2 ! mpx110 A1 WAN HP StoramgpexW10o0rks FC1 FC2 MGMT GE1 IOIOI GE2 ! Fabric B2 mpx110 A2/B2 Site 2 Fabric B1 HP StoramgpexW10o0rks FC1 FC2 MGMT GE1 IOIOI GE2 ! mpx110 B1 LAN Site 1 HP StoramgpexW10o0rks FC1 FC2 MGMT GE1 IOIOI GE2 ! Fabric A3 mpx110 A3/B3 LAN Fabric B3 Site 3 26546a Figure 96 HP Continuous Access EVA 3-site configuration with four mpx110 gateways . Figure 97 shows the same long-distance link redundancy as Figure 96, with the addition of redundant mpx110 gateways at Sites 2 and 3. 304 SAN extension