Guidelines for using iSCSI with active/active configurations

To ensure that the partner storage system successfully takes over during a failure, you need to make sure that the two systems and the TCP/IP network are correctly configured.

Of special concern are the target portal group tags configured on the two storage systems.

The best practice is to configure the two partners of the active/active configuration identically:

•	Use the same network cards in the same slots.

•	Create the same networking configuration with the matching pairs of ports connected to the same subnets.

•	Put the matching pairs of interfaces into the matching target portal groups and assign the same tag values to both groups.