What is HA pair in NetApp?

What is HA pair in NetApp?

An HA pair is two storage systems (nodes) whose controllers are connected to each other directly. In this configuration, one node can take over its partner’s storage to provide continued data service if the partner goes down.

What is failover in NetApp?

Data ONTAP is equipped with functionality called controller failover that allows the partner system to assume responsibility for the failed system’s LUNs without interruption. A storage system with an HA pair has a single global WWNN, and both systems in the HA pair function as a single FC node.

What is Cluster HA NetApp?

Description. The cluster ha modify command enables or disables cluster high availability in a two-node cluster. Enable high availability when performing some procedures, such as replacing hardware. Note: This command is required to enable high availability if the cluster only has two nodes.

What is cluster interconnect NetApp?

The private cluster interconnect enables the cluster nodes to communicate with each other and to move data within the cluster. The private cluster interconnect uses dedicated 10 GbE switches.

What is high availability in NetApp?

The High Availability configuration ensures that your aggregates remain available in the case of a node failure. We also need to fail over the logical interfaces from the failed node so that clients can maintain connectivity to the NAS IP addresses during a takeover event.

What is RAID DP in NetApp?

RAID-DP is a standard Data ONTAP feature that protects your data from double-disk failures or single-disk failures with media errors. This feature significantly increases the fault tolerance of RAID groups in Data ONTAP over traditional single-parity RAID.

What is broadcast domain in netapp?

A broadcast domain object is used to define a layer 2 broadcast domain network configuration. It is used to group the ports which belong to the same layer 2 network.

How do I create a broadcast domain in netapp?

Create a new broadcast domain. Note: The IPSpace of the ports added will be updated to the IPSpace of the broadcast-domain. A failover-group will be generated containing the ports of the broadcast-domain. The MTU of all of the ports in the broadcast-domain will be updated to the MTU specified for the broadcast-domain.

How is high availability addressed by failover systems?

Instead of using physical hardware to achieve total redundancy, a high availability cluster locates a set of servers together. These high availability servers both possess failover capabilities and monitor each other. If the primary server has issues, only one of the backup servers needs to detect them.

What is a switchless cluster?

In a two-node switchless cluster configuration, you do not need to connect the nodes in the HA pair to cluster network switches. Instead, you install cluster network connections directly between the two storage controllers. In a two-node switchless cluster, the two nodes can only be an HA pair.

What are aggregates in NetApp?

An aggregate is a collection of disks (or partitions) arranged into one or more RAID groups. It is the most basic storage object within ONTAP and is required to allow for the provisioning of space for connected hosts.

How many disks can fail in RAID-DP?

two failed drives
You can have two failed drives in every aggregate and still not lose data, because each aggregate is a seperate entity. In addition, you can lose two drives in each raid group of a _single_ aggregate without losing data, because each raid group is in its own raid-dp setup.

What is the difference between RAID 6 and RAID-DP?

The advantage of RAID-DP compared to regular RAID6 is that growing your RAID set is just a matter of adding drives, whereas with RAID6 you’d have to re-distribute all the data over the newly grown RAID, which takes ages, is error-prone and makes performance suffer.

What is the difference between a broadcast and collision domain?

A Broadcast domain is a type of Domain wherein traffic flows all over the network. The Collision domain refers to a set of devices in which packet collision could occur. Broadcast domain refers to a logical set of reachable computer systems without using a router.

What is the use of broadcast domain in netapp?

What is broadcast domain in Netapp storage?

The cluster broadcast domain contains ports that are in the cluster IP space. All cluster ports are in the cluster broadcast domain by default. Our cluster interconnect network needs to have a separate dedicated network, otherwise, it’s not a configuration supported by Netapp.