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NRENs and other academic organisations are currently using, building or planning to build the build so-called low-cost storage infrastructure. Aim of this work is to help the system designers designers in understanding the real costs of the storage systems and making educated decisions related to choosing the hardware and software platforms.
TCO calculator enables analysing the storage infrastructure costs including the hardware investments costs as well as operational costs such as including energy, maintenance and data center related costs. It also calculates and simulates overal system parameters such as system throughput, IOPS etc.
At the moment TCO calcuator cosinders the low-cost storage systems based on disk servers. It takes into account costs and parameters resulting from the server platform used, HDD and SSD drives applied as well as software defined storage software specifics (now mainly Ceph, to be extended in future).
The version attached to this web page is a content and organisation of the TCO calculator is a result of the discussion among NRENs that started during the TF-Storage meeting in Vienna . Teleconference notes (February 12-13, 2015) and teleconferences organised afterwards. Notes from the teleconferences are (or will be) included in the child pages.
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TCO calculator is provided as the excel sheet to be used offline. At some point we will perhaps prepare an online tool.
You can get it the tool from here: TCO_calculator
For Excel users: sometimes Excel report the file as 'broken' and asks if it should try to 'repair' it - please answer yes if you trust us 
You may specify the basic system parameters on the single sever landing page. They include sever platform, type of the HDD and SSD disks used as well as the data redundancy level and access pattern planned in the system.
You may also analyse multi server configuratons using a dedicated tab, for instance simulate various sizes of your low-cost storage system and associated costs.
Servers, HDD disks and SSD parameters can be added to the tab that included known server platforms, HDDs and SSDs. These lists should be extended so that they reflect all platforms and components known to the NRENs.
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