UPS inventory for CCB Clusters and non-cluster HPCs

What does it cost to UPS a research systems?

Assuming protection for 1-3 minutes MAXIMUM:

Do all head nodes and stand-alone computers in 248 Baker Lab

• Started getting done. About $180 (APC brand) per head node or server every ~3-4 years  (3 yr for warranty and ~4 years actual battery life). And ~$900/ set of 4 GPU systems every ~3-4 years (to confirm approach and estimates).

CCB head nodes' UPS status:

Remaining UPS's to invest in

Clusters

Most we been done Spring 14, after the spate of power failures. See CCB's HPC page (first chart, in "UPS for headnode" column) for details

Non-clusters

See CCB's HPC page (second chart, in "UPS" column) and CCB's non-HPC page (in "UPS" column) for details of the few that are already done.

Stand-alone computers' UPS status:

Review  others at above two cited pages which might need a UPS, after above ones done.

Switches

Do all switches: Maybe ~$340 ($170*2), every ~4 years.

• Recommend: Do ASAP.
• Q: Funding?
• Other issues and concerns with actually implementing this approach:
  • Rack space. Maybe power. Maybe cord lengths. What other issues?

Do all compute nodes: ~$18K initially, and perhaps ~$4.5K every ~4 years to replace batteries and deal with UPS hardware failures.

• ~20 20amp UPS's ($900 each) required.
  • Replacement batteries ~$200 each, or ~1/4 replacement cost.
• Estimates are simply back-of-the-envelope calculations.
• If were to actually implement, there may be smarter ways to do this, but the total cost will likely not be lower.
  • In fact, costs may be higher, if sufficiently higher benefit doing it a different way, for example.
• Issues and concerns with actually implementing this approach:
  • Costs. Rack space. Maybe power. Maybe cord lengths. What other issues?

Compute node counts, for UPS pricing estimates. Does not include head node:

• Count source: ChemIT's Computer counts with CCB clusters