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.
WAN
26546a
Fabric A2
Site 1
Site 3
Site 2
FC1
FC2
GE1
GE2
MGMT
IOIOI
!
HP StorageWorks
mpx100
mpx110
A2/B2
FC1
FC2
GE1
GE2
MGMT
IOIOI
!
HP StorageWorks
mpx100
mpx110
A3/B3
Fabric B2
Fabric A3
Fabric B3
FC1
FC2
GE1
GE2
MGMT
IOIOI
!
HP StorageWorks
mpx100
mpx110
A1
FC1
FC2
GE1
GE2
MGMT
IOIOI
!
HP StorageWorks
mpx100
mpx110
B1
Fabric A1
Fabric B1
LAN
LAN
LAN
LAN
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.
SAN extension304