Advanced functions, Figure 5-9 dual clustering mpio hosts, Host group 0 – Accusys ExaRAID GUI User Manual
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Advanced Functions
5-27
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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
FCP1
FCP2
FCPa2
FCPa1
FCP1
FCP2
FCPb2
FCPb1
DG0LD0
DG1LD0
WWPN
WWPN
WWPN
WWPN
HBA1
HBA0
HBA3
HBA2
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6
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Host A
Host B
LAN
Host Group 0
FC/SAS
Switch
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6
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FC/SAS
Switch
Controller B
Controller A