Information Technology Services: P575/Yatta
Group Contact
Ruth Marinshaw
Assistant Vice Chancellor

Campus Box 3420
Chapel Hill, NC 27599-3420
Phone: 919.962.4314
E-mail: ruth_marinshaw[at]unc.edu

P575/Yatta

Hardware: p575 (4 Systems)

  • Machine Names:
    • p575-n00.isis.unc.edu
    • p575-n01.isis.unc.edu
    • p575-n02.isis.unc.edu
    • p575-n03.isis.unc.edu
  • IBM P575 , Power5+, 16 1.5 GHz Processors , 32 GB of Shared Memory (64 GB on p575-n03)
  • 4 1-Gigabit Ethernet Network Adapters
  • 1 10-Gigabit Ethernet Network Adapter (for GPFS connection)
  • 1 4-Gigabit Fibre Channel Adapter
  • 2 146 GB Disk Drives for Operating System in a mirrored configuration
  • Power5+ Details (8) Dual Cores, 1.9 MB L2 Cache per dual core, 36 MB L3 cache per dual core.
  • Access to 10 TB of NetApp NAS RAID array used for scratch space, mounted as /nas and /netscr
  • Access to 39TB of GPFS cluster used for scratch space, mounted as /largefs and /smallfs.

Hardware: Yatta

  • Servers for Scientific Applications such as Gaussian, Amber, and custom parallel code
  • Machine Name: yatta.isis.unc.edu
  • IBM P690 Model 681 - Power4+ Turbo, 32 1.7 GHz Processors, 128 GB of Shared Memory
  • 2 1-Gigabit Ethernet Network Adapters <
  • 1 10/100 Ethernet Network Adapter
  • 1 2-Gigabit Fibre Channel Adapter
  • 1 CD-ROM drive
  • 1 20/40 GB 4mm tape drive
  • 1 3.5" floppy disk drive
  • 8 146.8 GB local Disk Drives
  • 8 36.4 GB Disk Drives, 2 for Operating System - mirrored configuration, 2 for Operating System Paging Space (72 GB)
  • Power4+ Details (4) 8-Way MCMs (Multi-Chip Modules), Each MCM has: 4 Power4+ chips per MCM. Each Power4+ chip has 2 processors for a total of 8 processors per MCM, 32 KB L1 data cache per processor, 64 KB L1 instruction cache per Processor, 1.5 MB L2 Cache per Power4+ shared between the 2 processors on the Power4+ chip, 128 MB L3 cache per MCM
  • Access to 10TB of NetApp NAS RAID array used for scratch space, mounted as /nas and /netscr
  • Access to 39TB of GPFS cluster used for scratch space, mounted as /largefs and /smallfs.

Operating System

  • IBM AIX version 5.3

System Maintenance Guidelines

  • Maintenance will be scheduled and announced in advance with a Change Notice.
  • Unscheduled maintenance may involve little or no advance notice depending on the nature of the problem. An Emergency or Follow Up Change Notice will be issued as soon as possible.

System Support Personnel