Object Storage

An object storage is a storage architecture in which data are managed as objects. File storages, however, use a hierachical structure. Object storages have an extremely high storage capacity thus becoming an excellent storage option for Big Data. Moreover, the data...

On-Demand Self Service

On-Demand Self Service is a cloud computing service model by which a customer can provision additional cloud resources on-demand, without involving the service provider. Resources are typically provisioned through an online control panel.


“On-Premise” describes local software programmes or infrastructures that is run on computers on the premises (in the building) of the person or organization using either of it. Example: Microsoft Office as it has to be installed on the physical computer...

Open Source

The source code refers to the text of a computer programme written in a programming language. Open Source Software are software whose source code is available to everyone. It might be freely modified, widened and deepened.

Open Source Software

Open Source Software (OSS) are freely available software programmes. They may be used by several persons at the same time and are not directly linked to a terminal device.

Open Systems SnapVault

Open Systems SnapVault is the backup of Windows or UNIX-servers linked to the DAS. It contains an online archive of the backup copies.


OpenStack is a software project providing a free architecture for cloud computing. It was triggered by Rackspace and NASA; meanwhile, it is supported by renowned industry players (SUSE Linux, Dell, Canonical, Citrix System, HP, AMD, Intel, Red Hat, IBM etc). OpenStack...

Operate a backup service in a cluster

When operating a backup service in a cluster, both the operating system and the backup applications are doubly present on physical servers. The data may be commonly used by all nodes. Thus, the availability of a service is significantly increased compared to the...