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Hydra

Hydra is our primary VM host. It is currently running 18.04.03 LTS

Basic Info

!!! Danger The heat sink on CPU0 is not secured completely. This is not from misuse, but still results in the hardware being extra sensitive to a bump leading to the cooler becoming dislodged and rolling around the rack. Servers should always be handled with care regardless of the circumstance, but in this case an effort must be made.

  • CPU: 2x 16 Core AMD Opteron 6376
    • 2x Noctua CPU Coolers
  • RAM: 4x 16GB DDR3-1600 ECC RAM
  • HDDs: 5x 2TB Segate Constelation HDD w/ RAID 6
  • Motherboard: Super Micro MBD-H8DG6-F-0 Motherboard EATX
  • Power supply: Silver Stone 550 Watt 80+ Platinum
  • Chassis: Roswell 4u Server Chassis
  • NICs:
    • 10G Fiber: Mellanox Technologies MT26448 (00:02:c9:51:77:2c)
    • Ethernet: Intel Corporation 82576 (0c:c4:7a:c6:e7:88, 0c:c4:7a:c6:e7:89) [Unused]

History

Hyrda was purchased in Fall 2016 since most of our VM infrastructure at the time was failing. We bought an AMD Opteron with 16 (slow) cores over an Intel Xeon with 8 (fast) cores because we wanted to have more VMs and speed didn't matter as much as running our vast infrastructure.

Until sometime around September 2017, we did not understand why using GDB would occasionally crash the server (used often in 141). This would cause a kernel panic, and we installed Arch Linux in January 2017 because it was the only OS that didn't seem to have the problem.

Later, we determined that it was because we forgot to do BIOS updates that fixed the CPU microcode.

Installation:

It's Ubuntu?

Additional packages:

htop iotop iftop lm_sensors vim sudo qemu libvirtd screen rsync tmux p7zip

Additional configuration:

Hardware:

Services:

  • anthonyresearch
  • atlas
  • bouncer
  • cjsd
  • crow
  • docker [Inactive]
  • docs [Inactive]
  • dubsdot
  • eldoom
  • gitea
  • GMy [Inactive]
  • info
  • library
  • linalg [Inactive]
  • mail [Inactive]
  • nagios [Inative]
  • OpenVPN
  • qvm
  • ros-pxe [Inactive]
  • Scan2 [Inactive]
  • sdrserver [Inactive]
  • seance-pxe
  • tino
  • undocs
  • undocs [Unused]
  • unifycontroller
  • voip