Trace: • node_roles

Table of Contents

Nodes and Their Roles

Head Node ( x 1 )

Node Information

  • Server Model: Rackform nServ A331
  • External name: grow-prod.its.uiowa.edu
  • Internal name: grow-prod
  • Functions and software installed:
    • Rocks head
    • Condor pool manager
    • Stores network mounted /home space for users.
    • Ganglia web server and monitor.
    • Provides internal network gateway

Partitioning Scheme

RAID Devices

Devices Mount Point Type Size MB
/dev/md0 / ext3 16002
/dev/mda1 /var ext3 8001
/dev/mda2 /scratch ext3 48900
/dev/mda3 N/A swap 16002
/dev/mda4 /export ext3 396032

Hard Drives

Devices sda and sdb are mirrored. (RAID 1)

Devices Mount Point Type Size MB
/dev/sda1 /dev/md0 RAID1 16002
/dev/sda2 /dev/md2 RAID1 48900
/dev/sda3 /dev/md3 RAID0 8001
/dev/sda4 N/A EXTENDED 404033
/dev/sda5 /dev/md1 RAID1 8001
/dev/sda6 /dev/md4 RAID1 396032

OSG Grid node ( x 1 )

Node Information

  • External name: grow-grid.its.uiowa.edu
  • Internal name: grid-0-0
  • Functions and software installed:
    • Grid storage element (SE)
    • Grid compute element (CE)
    • Hosts network mounted /data space

Partitioning Scheme

RAID Devices

Devices Mount Point Type Size MB
/dev/md0 / ext3 16386
/dev/mda1 /var ext3 8189
/dev/mda2 N/A swap 8189
/dev/mda3 /export ext3 444172

Hard Drives

Devices sda and sdb are mirrored. (RAID 1)

Devices Mount Point Type Size MB
/dev/sda1 /dev/md0 RAID1 16386
/dev/sda2 /dev/md1 RAID1 8189
/dev/sda3 /dev/md2 RAID1 8189
/dev/sda4 N/A EXTENDED 444172
/dev/sda5 /dev/md3 RAID1 444172

Login Nodes ( x 2 )

Node Information

  • Server Model: Rackform nServ A331
  • External name(s): grow-in0.its.uiowa.edu, grow-in1.its.uiowa.edu
  • Internal name(s): login-0-0, login-0-1
  • Functions and software installed:
    • Provides a login for users to run interactive jobs
    • Submits interactive jobs to compute nodes via Condor

Partitioning Scheme

RAID Devices

Devices Mount Point Type Size MB
/dev/md0 / ext3 16386
/dev/mda1 /var ext3 8189
/dev/mda2 N/A swap 8189
/dev/mda3 /export ext3 444172

Hard Drives

Devices sda and sdb are mirrored. (RAID 1)

Devices Mount Point Type Size MB
/dev/sda1 /dev/md0 RAID1 16386
/dev/sda2 /dev/md3 RAID1 8189
/dev/sda3 /dev/md1 RAID1 8189
/dev/sda4 N/A EXTENDED 444172
/dev/sda5 /dev/md3 RAID1 444172

Compute Nodes ( x 14 )

  • External name(s): N/A
  • Internal name(s): compute-0-0, compute-0-1, compute-0-2, compute-0-3, compute-0-4, compute-0-5, compute-0-6, compute-0-7, compute-0-8, compute-0-9, compute-0-10, compute-0-11, compute-0-12, compute-0-13
  • Functions and software installed:
    • Service batch jobs (Condor) submitted by either local or grid users.

Notes

Contact Info

This Dokuwiki page is maintained by:
Daniel Squires
University of Iowa
Department of Computer Science
Email: daniel-squires@uiowa.edu