There are key differences between clustered Data ONTAP MetroCluster configurations and configurations with Data ONTAP operating in 7-Mode.
In clustered Data ONTAP, the MetroCluster configuration includes two HA pairs, each in a separate cluster at physically separated sites.
|Feature or component||Clustered Data ONTAP MetroCluster configuration||Data ONTAP 7-Mode MetroCluster configuration|
|Number of storage controllers||Four
The controllers are configured as two HA pairs, one HA pair at each site.
The two controllers are configured as a HA pair with one controller at each site.
|Local failover available?||Yes
A failover can occur at either site without triggering an overall switchover of the configuration.
In the event of a problem at the local site, the system fails over to the partner site.
|Single command for failover or switchover?||Yes
The command for local failover is:
The command for switchover is:
metrocluster switchover or metrocluster switchover -forced-on-disaster true
cf takeover or cf forcetakeover -d
|DS14 disk shelves supported?||No||Yes|
|Two FC switch fabrics?||Yes||Yes|