Adaptec 412R User Guide - Page 135

Hubs Disabled, SAN Solution Strategies DuraStor 7320SS only

Page 135 highlights

Figure B-3 Two Hosts and Two Switches B-5 Host 1 FC HBA See's LUN 1 & LUN 2 Switch 1 See's LUN 1 & FC HBA LUN 2 HOST I/O P1 P2 Host 2 FC HBA See's LUN 1 & LUN 2 Switch 2 FC HBA See's LUN 1 & LUN 2 P4 P3 Host I/O Connectors RAID Controller FC1 LUN 1 Active Disk CH1 FC2 LUN 1 Disk Active CH2 Disk CH0 Disk CH3 Controller 1 RAID Controller FC1 LUN 2 Active Disk T CH1 FC2 LUN 2 Active Disk CH2 T Disk T CH0 Disk CH3 Controller 2 T Drives 7 - 12 Drives 1 - 6 T= Location of internal termination Disk I/O Connectors T SEP T SEP SAF-TE Disk I/O T T Disk I/O CH 0 CH 3 CH 1 CH 2 Figures B-3 and B-4 show two controllers configured in an activeactive dual-port mode with the internal hubs disabled. Two hosts are connected via two independent switches. Using external switches supports higher bandwidth, since the host ports are not required to share bandwidth on a loop. Hubs Disabled SAN Solution Strategies (DuraStor 7320SS only)

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B-5
SAN Solution Strategies (DuraStor 7320SS only)
Hubs Disabled
Figures
B-3
and
B-4
show two controllers configured in an active-
active dual-port mode with the internal hubs disabled. Two hosts
are connected via two independent switches. Using external
switches supports higher bandwidth, since the host ports are not
required to share bandwidth on a loop.
Figure B-3
Two Hosts and Two Switches
Host 2
FC HBA
FC HBA
Host 1
Switch 1
Switch 2
FC HBA
FC HBA
See's LUN 1 &
LUN 2
See's LUN 1 &
LUN 2
See's LUN 1 &
LUN 2
See's LUN 1 &
LUN 2
LUN 1
LUN 1
Active
Active
Active
Active
LUN 2
LUN 2
Host I/O
Connectors
Disk I/O
Connectors
RAID Controller
SEP
T= Location of internal termination
T
T
Controller 1
SAF-TE Disk I/O
Disk
CH1
Drives 7 - 12
Drives 1 - 6
Disk
CH2
Disk
CH0
Disk
CH3
FC2
FC1
P1
P2
CH 1
CH 2
P3
P4
HOST I/O
RAID Controller
Controller 2
Disk
CH1
Disk
CH2
Disk
CH0
Disk
CH3
FC2
FC1
T
T
T
T
SEP
T
T
Disk I/O
CH 0
CH 3