NetApp Clustered ONTAP

NetApp – Clustered DATA ONTAP – Tutorial

NetApp SAN Protocols

NetApp  Clustered Data ONTAP is one of the emerging technology in the storage market. Cloud technologies demonstrated that how to reduce the IT operation cost by utilizing  commodity hardware. This was the wake call for many of the proprietary hardware vendors in the market to provide the cheapest and reliable solution to the customer.  So NetApp has wake of so early and …

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NetApp – Clustered DATA ONTAP – SAN – Part 14

NetApp iSCSI Environment

NetApp is a unified storage. It supports both NAS and SAN protocols. SAN is a block-based storage system that uses FC, Fibre Channel over Ethernet (FCoE), and iSCSI  protocols to make data available over the network. Starting with the Data ONTAP 8.1 operating system, clustered Data ONTAP systems began supporting SANs on clusters of up to four nodes. In the Data ONTAP …

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NetApp – Clustered DATA ONTAP – Volumes – Part 12

Infinite Volume - Namespace

In NetApp , Volumes are used to store the system data, filesystem and clients data. By default, node’s operating system (mroot) is installed on  volume “vol0”.  Volumes are created on top of aggregates and vol0 resides on aggr0 by default. The “volume create” command creates a volume on a specified Vserver and storage aggregate. NetApp offerers there type of volumes to meet …

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NetApp – Clustered DATA ONTAP – Data Vserver (SVM)- Part 11

NetApp SVM FlexVol

NetApp Clustered data ONTAP consists three type of vServers, which is helping in managing the node, cluster and data access to the clients. Node Vserver  – Responsible to Manage the nodes. It automatically creates when the node joins the cluster. Admin Vserver  – Responsible to Manage the entire cluster. It automatically creates during the cluster setup. Data Vserver – cluster administrator must create data Vservers …

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NetApp – Clustered DATA ONTAP – Storage Failover – SFO – Part 10

Unplanned SFO Netapp

In NetApp Storage system, RAID feature will provide the fault tolerance in-case of any  disk failures. But what will happen if the controller(node) itself  fails ? NetApp ships the controllers as HA pairs (Two controllers in one chassis ). If one node fails , automatically other controller will take over the storage.  Enabling storage failover (SFO) is done within pairs, regardless of …

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NetApp – Clustered DATA ONTAP – Storage Aggregate – Part 9


Storage systems should provide the fault tolerance if any  disk failures occurs in disk-shelf’s. NetApp uses the RAID-DP technology to provide the fault tolerance. A RAID group includes several disks that are linked together in a storage system. Although there are different implementations of RAID, Data ONTAP supports only RAID 4 and RAID-DP. Data ONTAP classifies disks as one of four types for RAID: data, hot spare, parity, …

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NetApp – Configuring the Two Node Cluster – Part 6

NetApp 6 Node cluster

This article will demonstrates that how to configure the NetApp (Clustered ONTAP) two node cluster. Since I am going to use the simulator for this demonstration, we can’t virtualize the HA pair controllers. I will use two separate nodes to form the cluster with switch-less configuration(Assuming that direct cluster inter-connect cabling is done between nodes). In an order to form …

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