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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

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jdat production hardware
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)
reality check
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)
hmi aia jsoc architecture

GSFC

LMSAL

White Sands

housekeeping

MOC

House-

keeping

Database

DDS

HMI & AIA

Operations

Stanford

HMI JSOC Pipeline Processing System

Redundant Data Capture System

Quicklook

Viewing

Primary Archive

30-Day

Archive

Local Archive

AIA Analysis

System

Catalog

High-Level

Data Import

Offline

Archive

Data

Export

& Web

Service

World

Offsite

Archive

HMI & AIA JSOC Architecture

Science Team

Forecast Centers

EPO

Public