Page 1 JSOC Review – 17 March 2005

JDAT Production Hardware

• Compute nodes (< 100)– 2-, 4-, 8-multicore processors per node– 16+ GB per processor– 64-bit linux

• Database nodes (< 5)– Oracle cluster– 5 TB shared database volume

• I/O nodes (< 10)– High-availability NFS server cluster– Multiple fibre channel connections to non-shared disks and tape drives– Multiple gigabit ethernet connections to compute nodes

• RAID disk storage– 400 TB initially– 100 TB annual increment– SATA drives (500 GB today)

• Tape Archive– Two PB-sized tape libraries initially– ½ PB per library annual increment– SAIT (500 GB, 30 MB/s today) or LTO (400 GB, 80 MB/s today)

Page 2 JSOC Review – 17 March 2005

JDAT Prototype

Page 3 JSOC Review – 17 March 2005

JDAT network

Page 4 JSOC Review – 17 March 2005

Reality Check

• AIA/HMI combined data volume 2 PB/yr = 60 MB/s

– read + write x 2

– quick look + final x 2

– one reprocessing x 2

– 25% duty cycle x 4

2 GB/s (disk)

1/2 GB/s (tape)

• NFS over gigabit ethernet 50 – 100 MB/s

– 4 – 8 channels per server, 5 servers (today)

• SAIT-1 native transfer rate 25 – 30 MB/s

– 10 SAIT-1 drives per library, 2 libraries (today)

Page 5 JSOC Review – 17 March 2005

HMI & AIA JSOC Architecture

Science TeamForecast Centers

EPOPublic

Catalog

Primary Archive

HMI & AIAOperations

House-keeping

Database

MOCDDS

Redundant Data

Capture System

30-DayArchive

OffsiteArchiv

e

OfflineArchiv

e

HMI JSOC Pipeline Processing System

DataExport& WebService

Stanford

LMSAL

High-LevelData Import

AIA AnalysisSystem

Local Archive

QuicklookViewing

housekeepi

ng GSFCWhite Sands

World