A failover policy specifies how a cluster manager should respond when a cluster element such as a network interface card or a database server fails.
Which failover policy is set by default on an iscsi Lif?
The default failover policy for data logical interfaces is system-defined. This value can be changed.
What is failover policy in netapp?
For example, node management LIFs are set to the “local-only” failover policy because failover ports must be on the same local node. But cluster management LIFs can use any node in the cluster to perform management tasks, so it is created by default with the “broadcast-domain-wide” failover policy.
What is netapp broadcast domain?
Broadcast domains enable you to group network ports that belong to the same layer 2 network. The ports in the group can then be used by a Storage Virtual Machine (SVM) for data or management traffic. A broadcast domain resides in an IPspace. These ports are used primarily to serve data.
What is the difference between a failback and failover cluster?
The failover operation switches production from a primary site to a backup (recovery) site. A failback returns production to the original (or new) primary location after a disaster (or a scheduled event) is resolved.
What is the failover in network?
Failover is a backup operational mode that automatically switches to a standby database, server or network if the primary system fails, or is shut down for servicing. Failover is an extremely important function for critical systems that require always-on accessibility.
What is Lif in netapp cluster mode?
A LIF (logical interface) is an IP address with associated characteristics, such as a role, a home port, a home node, a routing group, a list of ports to fail over to, and a firewall policy. You can configure LIFs on ports over which the cluster sends and receives communications over the network.
What is CFO and SFO in clustered ontap?
The two options, CFO (controller failover), and SFO (storage failover), determine the aggregate control sequence Data ONTAP uses during storage failover and giveback operations. Aggregates created on clustered Data ONTAP systems (except for the root aggregate containing the root volume) have an HA policy of SFO.
What is failover group in netapp?
A failover group contains a set of network ports (physical ports, VLANs, and interface groups) from one or more nodes in a cluster. The network ports that are present in the failover group define the failover targets available for the LIF.
What is IPspace in netapp?
The IPspace feature enables a single storage system to be accessed by clients from more than one disconnected network, even if those clients are using the same IP address. An IPspace defines a distinct IP address space in which vFiler units can participate.
What means failover?
What is Dr failback?
Failover is the process of shifting I/O and its processes from a primary location to a secondary disaster recovery (DR) location. Failback is the process of re-synchronizing that data back to the primary location, halting I/O and application activity once again and cutting back over to the original location.
What is the default port policy for the failover group?
All network ports from all nodes in the failover group. This is the default setting for the cluster management LIF. You would not want to assign this policy to node management LIFs or cluster LIFs because in those cases the ports must be on the same node.
How do I configure LIF failover?
Configuring LIF failover involves creating a failover group, modifying the LIF to use the failover group, and specifying a failover policy. A failover group contains a set of network ports (physical ports, VLANs, and interface groups) from one or more nodes in a cluster.
What are user-defined failover groups and LIF failover policies?
The user-defined failover groups can be created for special failover situations when the default broadcast domain-based groups do not meet your needs. LIF failover policies are used to restrict the list of ports within a failover group that will be available as failover targets for a LIF.
