Storage Service Definitions WG


Group details

Secretariat Liaison: 
Timea Biro
TAB Liaison: 
Rainer Stotzka
Not yet endorsed

This working group is involved in creating well-defined terms that describe storage services, especially in the areas of Quality of Service and Data Life-cycle. These terms should describe what the users (the scientists) can expect from the storage service, allowing them to compare different storage options and choose where to store their data with some confidence at how the storage service will behave.

The current lack of such standardised terminology makes it very difficult to compare the services and procure them. While Service Level Agreements (SLAs) and Memoranda of Understanding (MoUs) provide formal description of what the users may expect, the definition of those terms can vary between different communities and storage suppliers. There have even been cases where the lack of a common understanding have resulted in litigation during a procurement process. To this end, this working group is building a vocabulary that describes aspects of a data storage service that user communities care about. The aim is that this vocabulary may be used both when interacting with computers (e.g., in network protocols) and producing textual documents (e.g., SLAs, MoUs) to bring a common understanding of what is on offer and what is required.

A related concept is the data lifecycle: how data is handled over its lifetime. Some of these processes may be automated, provided such steps can be described in a generic fashion.  By delegating these processes to some automated service, the scientists can focus on maximising their scientific output.  However, this (again) requires a common language that describes what should be done.  Such a language has multiple uses — it may be used when configuring storage or in higher-level documents such as a project's Data Management Plan (DMP).

The group will establish an efficient way to collect the terminology and use this to build the definitions. As the scope and the definitions themselves naturally evolve, versioning of the vocabulary will become necessary to support users that require isolation from such variability.

To be successful, this process needs to involve a community of international user, storage operators, as well as storage vendors and suppliers.  Representatives of all those groups are welcome to join this process.

Note: the Storage Service Definitions WG was formally known as "QoS-DataLC Definitions"(Quality-of-Service and Data-Lifecycle Definitions) WG.

Recent Activity

14 Jun 2018

Patterns DB using RDA single sign-on

Dear Prov Pat WG & Storage Service Defns WG,
Single sign-on to the Patterns DB using your RDA credentials has finally arrived!
You’re now able to create a user account on the Patterns DB that is linked to your RDA account and use its details to log you in via the OpenID system. Follow these steps.
To create your account:
1. Sign in to the RDA website using your account at

01 Jun 2018

RDA P12 sessions: Deadline 29 Jun 2018

Dear all,
as the liaison for your group
³Storage Service Definitions WG²,
I'd like to remind you that the call for Session Proposals for Plenary 12 in
Gaborone is open.
Further details are at
The deadline for proposals is 29 June 2018 (17:00 UTC).
In any case, please let me know if there is anything I can do to help.
Best regards,
Karlsruhe Institute of Technology (KIT)

11 Apr 2018

Today's meeting: 10:00 CEST

Hi all,
We have our usual meeting using the usual video conference system:
As before (unfortunately) only Google Chrome works for in-browser
If people prefer, CISCO has a desktop client that should work for
Windows and MacOS.
The meeting takes place at 10:00 CET.
See you soon!

14 Mar 2018

Meeting 2018-03-14

Meeting on Thursday 2018-03-14


  • Paul Millar, DESY
  • Mikael Borg, NBIS


  • Nicholas Car, CSIRO
  • Bev Jones, University of Lincoln
  • Milan Daneček, CESNET

1. Update on previous actions

2018-02-28:1 Postponed: wait for Nick's report when he next joins the meeting.

2018-02-28.2 Postponed: Paul to send reminders to everyone for their input

continue reading

14 Mar 2018

Next meeting: TODAY (2018-02-28) 10:00 CET

Hi all,
As usual, here is the link for our video meeting:
As before (unfortunately) only Google Chrome works for in-browser
If people prefer, CISCO has a desktop client that should work for
Windows and MacOS.
The meeting takes place at 10:00 CET.
See you soon!

05 Mar 2018

Case statement time-line

Hi all,
I've just heard back from Rainer, our TAB liaison.
It turns out that there's no correlation between TAB meetings and the
case-statement review process. These two operate independently.
So (in general) there's no particular deadline to aim for, in order for
a case-statement to be processed quickly.
He presented a rough time-line:
i. community review (4w or 1m)
ii. TAB review (2w)
iii. Council endorsement (2w)
So, roughly 2 months from submitting to endorsement.