EonStor S12E-R1132-4/G1133-2 Installation and Hardware Reference Manual
NOTE:
In the event of single controller failure, a logical drive is accessed through
the host IDs managed by the alternate RAID controller. Host IDs and port
IPs do not fail-over to the surviving controller. Therefore, the EonPath multi-
pathing driver is necessary for path redundancy and controller failover.
4.2.4
Sample Topology – High Availability IP SAN with Multiple
Connections per Session (Firmware revision 3.64)
Component
Description
#
RAID system:
S12E-R1132-4
iSCSI RAID managed by redundant RAID
controllers, with a total of 8 host ports
1
HBA
iSCSI initiators, better be PCI-E TOE cards
4
GbE cables
GbE network cables
12
GbE
switch
GbE networking device used connects network
components
2
Software
EonPath to manage the fault-tolerant paths with
failover/failback and load balance. Use EonPath
multi-pathing software so that your operating system
can identify alternate paths to the same logical
drive.
-
RAID configuration
2 logical drives (each has 6 member drives). More
logical drives can be created from drives in JBOD.
LD0 mapped to CH0 AID and CH0 BID; LD
assigned to controller A
LD1 mapped to CH2 AID and CH3 BID; LD
assigned to controller B
CH0 and CH1 are combined into a portal group.
CH2 and CH3 are combined into another portal
group.
Portal groups enable multiple connections per iSCSI
session, and increase the applicable bandwidth per
session. (For detailed instructions on how to group
host ports, please refer to
Firmware Operation
Manual
.)
4-6