September 2005 Ukraine Kyiv JAXA Archive Activity September 2005 Ukraine Kyiv JAXA/EORC Kengo Aizawa JAXA/EORC Osamu Ochiai

Background JAXA started to design a new Archive/Information system for GOSAT and following satellites. JAXA have　two of archive/information system. They are not match new request.

Objective New archive system aims Upgrade system performance (Quick data access for quick distribution) Effective Disk Utilization Reduce maintenance, operation cost Vender independent (limited for SAN DISK part)

to be a vender independent.. We studied SMI-S specification and confirmed it just applied to SAN environment not to tape machine. SMI-S is an interface standard that enables interoperability both hardware and software between storage products from different vendors that an enterprise would use in a SAN environment.

Concept Information Lifecycle Management (ILM) for Storage system To satisfy the objectives we adopt Information Lifecycle Management (ILM) for Storage system

What’s ILM ? ILM is a Management that matches data to the change in the importance degree from generation to the deletion and stores it in appropriate storage. Data is classified according to informational worth. Required availability and performance are efficiently secured for every data by storage arranged hierarchically

Information Lifecycle in general Worth Time 4th　stage No access Semi permanent preservation 1st　stage High freq access 2nd　stage Middle freq access 3rd　stage Low freq access

to apply archive system.. 1st　stage High freq access High speed High reliable expensive DISK 2nd　stage Middle freq access middle speed middle reliable Low-cost DISK 3rd　stage Low freq access low speed High reliable Low-cost Media 4th　stage Semi permanent preservation Generated Products

to apply archive system.. classify EO data into some groups by its characters detention period on each stage will be decided by the group Group A Group B Group C 2nd stage 1st stage 3rd stage

archive system looks as.. archive system looks as a huge virtual storage archive system HSM software

System comparison Array Disk Robotics tape EOIS 4TB (DAS) 400TB system hold 3days hold forever ALOS 4TB (DAS) 200TB System hold １day　 hold forever New 100TB(SAN) 700TB System depend on data hold forever

Plan Basic design for new archive/Information system will be done by end of March 2006. New system will apply to GOSAT, Research use.