Second-level vifs in an active/active configuration
In an active/active configuration, you can access data from both storage systems even if one of the storage system in the configuration fails.
With a second-level vif connected in a single-mode configuration, you can maintain connectivity to your storage system even if one of the switches fails. Therefore, by using the two configurations together, you can achieve a fully redundant storage system connectivity architecture.
The following figure shows second-level vifs in an active/active configuration.
When both storage systems
are in operation, the following connections exist:
- Firstlev1 in Secondlev 1 connects StorageSystem 1 to the network through Switch 1.
- Firstlev2 in Secondlev 1 connects StorageSystem 1 to Switch 2.
- Firstlev4 in Secondlev 2 connects StorageSystem 2 to the network through Switch 2.
- Firstlev3 in Secondlev 2 connects StorageSystem 2 to Switch 1.
Firstlev2 and Firstlev3 are in standby mode.
If one of the switches fails, the following happens:
- If Switch 1 fails, Firstlev2 and Firstlev4 maintain the connection for their storage systems through Switch 2.
- If Switch 2 fails, Firstlev1 and Firstlev3 maintain the connection for their storage systems through Switch 1.
In the following figure, Switch 1 fails in an active/active configuration. Firstlev2 takes over the MAC address of Firstlev1 and maintains the connectivity through Switch 2.