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 […]
NetApp – Clustered DATA ONTAP – Shells & Directories – Part 8
The one of the most famous proverb about the Unix systems is – “Where there is a shell there’s a way” . If you want to directly interact with system kernel, you need a shell. NetApp Clustered Data ONTAP uses the Free BSD operating system on the controllers. You can manage the resources from cluster […]
NetApp – Clustered DATA ONTAP – License Management – Part 7
In NetApp Data ONTAP , you must buy license keys to enable the additional features. NetApp Data ONTAP 8.2 onwards ,all the licesne keys are 28 characters in length. In Clustered Data ONTAP , you must keep the license entitlement same across the all the nodes. This will ensure that fail-over will happen without any issues. In this […]
NetApp – Configuring the Two Node Cluster – Part 6
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). […]
NetApp – Clustered DATA ONTAP – Write Operations – Part 5
This article is going to explain about the Netapp write operations. In Clustered Data ONTAP , write request might land on any of the cluster node irrespective of the storage owners. So that data write operations will be either direct access or indirect access. The Write requests will not send to the disks immediately until CP […]
NetApp – Clustered DATA ONTAP – Read Operations – Part 4
There is a huge difference between DATA ONTAP 7 Mode and C-Mode on data access methods. In 7-Mode, we will be having HA pair controllers to access the data. When the request comes , it will go to any one of the HA controllers. But in C-Mode , Multiple controllers will be aggregated in the cluster and […]
NetApp – Clustered DATA ONTAP – FAS Series – Part -3
NetApp FAS unified storage arrays available in wide range of configurations to meet the current business needs. Clustered Data ONTAP operating system is available for all the FAS unified storage arrays. Each of the Netapp FAS platforms can be configured with SATA, SAS, or SSD disk shelves, and shelves can be mixed. This allows you to scale performance and […]
NetApp – Clustered DATA ONTAP – Objects and Components – Part 2
This article is going to explain about the NetApp clustered DATA ONTAP’s physical objects and virtual objects. Physical elements of a system such as disks, nodes, and ports on those nodes―can be touched and seen. Logical elements of a system cannot be touched, but they do exist and use disk space. For the NetApp beginners […]
Solaris 10 – Not booting in New Boot Environment ? Liveupgrade
I have been dealing with Solaris 10 Live upgrade issues from almost five years but still the new LU patches are not able to fix the common issues like updating the menu.lst file and setting the default boot environment. If the system is configured with ZFS root filesystem, then you have to follow the Live upgrade […]
NetApp – Clustered DATA ONTAP – Overview – Part 1
NetApp is very popular for NAS (Network Attached Storage) from the past decade . In 2002 , NetApp would like to change the NAS tag to SAN. So they have renamed their product lines to FAS (Fabric Attached SCSI) to support both NAS and SAN. In the FAS storage product lines, NetApp provides the unique storage solution which […]