EonStor DS S48 Series Hardware Manual
3.3
Hybrid Host Connections
For hybrid systems that feature two additional iSCSI ports, they can be used for
remote replication or be used for host LUN mapping if users wish to do so.
3.3.1
Single Hybrid Unit Connected to FC/iSCSI Hosts
HBA 0
EonPath
NIC
HBA 0
HBA 1
HBA 1
EonPath
NIC
HBA 0
EonPath
NIC
HBA 0
HBA 1
HBA 1
EonPath
NIC
Ch0 FC
CH1 FC
CH4 iSCSI
CH5 iSCSI
Ethernet
1
1
2
FC
3
When connected to both FC host and iSCSI host, the connections will work in
their respective speeds. It maximizes the number of connections while
keeping the optimum performance gained by the high speed FC link and FC
switch
(FC)
.
NOTE
To gain optimum performance, make sure the LAN switch
(1)
for the management
station
(2)
, the LAN switch for the systems, and the iSCSI switch
(3)
for iSCSI host
link are separated.
Otherwise, the host might consider the iSCSI connection as part of host connection
and might use it for data I/O, even if the iSCSI ports are not mapped to the host. As a
result, the data transaction speed will slow down to the level of iSCSI connection and
the fast FC connection bandwidth will be wasted.
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