Guidelines for using iSCSI with HA pairs

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 HA pair identically:

•	You should use the same network cards in the same slots.

•	You should create the same networking configuration with the matching pairs of ports connected to the same subnets.

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