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

2. 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.

3. 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)

4. 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.

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

6. 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

7. 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

8. 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

9. 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

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

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

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