Open-E DSS V7 : Active-Active Load Balancing iSCSI HA SAN Cluster Operations Guide

-Implemented a two node Active-Active iSCSI SAN Cluster using VSA's running on ESXI 5.5 hosts

-Node details :

-Node A1 has 3 iSCSI volumes (lv0000, lv0001, lv0002)

-Node B1 has 3 iSCSI volumes (lv0000, lv0001, lv0002)

-lv0000, lv0001 are Active on Node A1 and this will be replicated to lv0000, lv0001 of Node B1

-lv0002 is Active on Node B1 and this will be replicated to lv0002 of Node A1

-iSCSI resources on Node A1 is shown below, where lv0000and lv0001 of Node A1 will be replicated to lv0000 and lv0001 of Node B1

-lv0000 and lv0001 of Node A1 are selected as source

-Replication tasks of Node A1 is shown below

-iSCSI resources on Node B1 is shown below, where lv0002 of Node B1 will be replicated to lv0002 of Node A1

-lv0002 of Node B1  is selected as source

-Replication tasks of Node B1 is shown below

-If you want to reboot any of the nodes (say, Node A1), then you have to move all the iSCSI resources of Node A1 to Node B1, by selecting "move to remote node" under resources pool manager of Node A1, as shown below

-This may take some time and once the resources are moved to remote node, you can reboot Node A1

-As shown below, under Node A1 resources - status : active on Node B1

-Currently all 3 iSCSI volumes (lv0000, lv0001, lv0002) are served by Node B1

-Once Node A1 reboot is completed, you can move the resources back to Node A1