User Manual

Advanced Functions
5-27
• Active-Active Redundant Dual MPIO Clustering Hosts (With Fibre/SAS
switch)
As Figure 5-9 shows, the redundant RAID system is operating in a
clustering environment with dual MPIO hosts and two FC/SAS switches.
Users should be notified that the number of FC/SAS switches, hosts, and
controller must be the same when working in a clustering environment.
In this configuration, for DG0LD0, the two green solid path is the active
path by controller A while the two red dotted path is the standby path by
controller B; for DG1LD0, the condition is reversed.
Assign LUNs to storage groups DG0LD0 and DG0LD1 -> Storage
Group 0
DG1LD0 and DG1LD1 -> Storage
Group 1
Bind host groups and storage
groups to the fibre ports
Storage Group 0 bound to Host
Group 0 -> fcpa2 and fcpb2
Storage Group 1 bound to Host
Group 1 -> fcpa1 and fcpb1
Figure 5-9 Dual clustering MPIO hosts
FCP1FCP2FCPa2 FCPa1 FCP1FCP2FCPb2 FCPb1
DG0LD0
DG1LD0
WWPN
WWPN
WWPN
WWPN
HBA1
HBA0
HBA3
HBA2
1 2 3 4 5 6
1 2 3 4 5 6
7 8 9 10 11 12
7 8 9 10 11 12
Host A Host B
LAN
Host Group 0
FC/SAS
Switch
1 2 3 4 5 6
1 2 3 4 5 6
7 8 9 10 11 12
7 8 9 10 11 12
FC/SAS
Switch
Controller BController A