Happy/Yatta

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 Gigabit Ethernet Network Adapter <
• 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 4TB of NetApp NAS RAID array used for scratch space, mounted as /nas and /netscr

Hardware: Happy

• Machine Name: happy.isis.unc.edu
• IBM P630 Model 6C4, Power4+, 4 1.45 GHz Processors (Power4), 1.44 MB shared L2 cache, 32 MB L3 cache, 8 GB of Shared Memory
• 2 10/100 Ethernet Network Adapter
• 1 CD-ROM drive
• 1 3.5" floppy disk drive
• 2 36 GB Disk Drives for Operating System in a mirrored configuration
• Access to 10 TB of NetApp NAS RAID array used for scratch space, mounted as /nas and /netscr

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

• Larry Mason, System Administrator