Accusys ExaRAID GUI - Manual (Page 201)

Advanced Functions
5-28
Before proceeding with the following configuration tasks, ensure the FC/
SAS switches are used to establish the connections between the hosts
and the redundant RAID system. Then perform the GUI configuration tasks
as described in the following Configuration Tasks table.
Configuration Tasks
• Active-Passive Redundant Single MPIO Host (Dual Channel)
In the active-passive mode, one controller is active to process all I/O
requests, while the other is idle in standby mode ready to take over I/O
activity should the active primary controller is failed.
As Figure 5-10 shows, the controller A serves as an active role, and the
controller B as a standby role. Two LUNs are both mapped to two fiber
Tasks Instructions
Create Virtual volumes and
specify the preferred
controller RAID Management > Disk Groups >
Create DG0 and DG1
RAID Management > Logical Disks >
Create DG0LD0 > Specify the
preferred controller as ctla
RAID Management > Logical Disks >
Create DG1LD0 > Specify the
preferred controller as ctlb
Select Storage Provisioning
method RAID Management > Storage
Provisioning > Symmetric
Add WWPN of HBAs to hosts HBA0 WWPN -> Host 0
HBA1 WWPN -> Host 1
HBA0 WWPN -> Host 2
HBA1 WWPN -> Host 3
Add hosts to each host group Host 0, Host 1, Host2, and Host 3 ->
Host Group 0
Map LUNs to host groups DG0LD0 -> Host Group 0
DG1LD0 -> Host Group 0