Recent Posts

NetApp – Clustered DATA ONTAP – Shells & Directories – Part 8

netapp shell

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 shell (CLI) or OnCommand GUI …

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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 article we are going to …

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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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NetApp – Clustered DATA ONTAP – Write Operations – Part 5

NetApp - Write Operations - Direct Access

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 ( consistency point) occurs . NVRAM …

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NetApp – Clustered DATA ONTAP – Read Operations – Part 4

Indirect Data Access - read Operations

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 the request might land on …

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NetApp – Clustered DATA ONTAP – FAS Series – Part -3

Single Chassis HA-Pair

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 capacity independently. Using NetApp FlexArray …

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NetApp – Clustered DATA ONTAP – Objects and Components – Part 2

NetApp Clustered Data ONTAP

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 , the initial Netapp series …

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Solaris 10 – Not booting in New Boot Environment ? Liveupgrade

Solaris 10 Live upgrade issues and fixes

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 method for OS patching. Live …

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NetApp – Clustered DATA ONTAP – Overview – Part 1

NetApp Scale-out Capacity

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 supports multiple protocols in single …

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Openstack – Backup cinder volumes using swift storage

cinder root volume Bakcup using swift

This article will demonstrates that how to configure the cinder volumes backup using swift as backend storage. As you all  know that swift is the Object storage  within the openstack project. Swift is highly available , distributed and consistent object storage.  In the previous article ,we have seen that how to make the glance image service to use  swift as backed …

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