Storage Management TEG: Questionnaire Level 1 - Andreas Heiss

This twiki is to collect the input of Andreas Heiss. Please answer the questions below. For more information, please refer to the Storage TEG main twiki.

Question 1

- In your view, what are the 3 main current issues in Storage Management (SM)?

My answer:

- Different computing and data management models of the experiments require SEs with different setup (layout) of servers, data pools etc.

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Question 2

- What is the greatest future challenge which would greatly impact the SM sector?

My answer:

- Spinning magnetic disks will become extinct in some years (5-10), SSDs or something similar will take over. Will probably solve some performance problems but how is the price/TB evolving? Reliability?

- Long term archival and data migration of the steadily increasing amount of data from old to new hardware and newer media is challenging. Will technology evolve fast enough to keep the necessary efforts constant?

Question 3

- What is your site/experiment/middleware currently working on in SM?

My answer:

KIT is running dCache and xrootd (for Alice only)

Question 4

- What are the big developments that you would like to see from your site/experiment/storage system in the next 5 years?

My answer:

Put here your answer

Question 5

- In your experience and area of competence, what are the (up to) 3 main successes in SM so far?

My answer:

Under stable conditions (stable access patterns etc.) the SEs work quite stable and perform well.

Question 6

- In your experience and area of competence, what are the (up to) 3 main failures or things you would like to see changed in SM so far?

My answer:

Put here your answer

That's it!

Thanks! Feel free to edit again at any time, until the date of the kick-off meeting.

-- DanieleBonacorsi - November 2011