A snapshot of the UPS's used to support servers, switches, and other equipment under ChemIT's management. Mostly within ChemIT's Baker 248 server room.

UPS inventory for CCB Clusters and non-cluster HPCs

Cluster name	UPS for headnode	Upgrade status
Abruna	NONE Unique: Need to do ASAP (no backup of OS!)	4/14: Within a year, upgrade OS? No h/w upgrades planned
Ananth	(unknown)	n/a
Collum	Done Spring'14	Fall'13: Upgraded OS and added 2 nodes
Hoffmann	Done Spring'14	Winter'13/14: Upgraded OS and added 2 nodes
Lancaster (w/ Crane)	Done Spring'14 (Funded by Crane)	Spring'14: Upgraded OS and added 2 nodes
Loring	NONE Unique: Need to do ASAP (no backup of OS!)	4/14: When do OS upgrades, and why? No hardware upgrades planned
Scheraga	Done Fall'14 (See chart for stand-alone computational (GPU) computers)	Summer'14: $50K hardware upgrades; to include OS upgrade.
Widom	Yes Waiting for head node to deploy (on C4 at the moment)	Spring'14: Upgraded OS and added 2 nodes
ChemIT (C4)	Done Old UPS; on the margin	4/14: When turn into production, and for whom?
Totals:

CCB non-cluster HPCs, summary information

Inventory and summary notes regarding non-cluster HPC systems in 248, including computational stand-alone systems.

Columns needed - software installed / managed (do per system; dedicated page?), Cores, Age, storage and related (RAID: h/w or s/w?)

Name of system, and purpose	ChemIT / other support	DNS name (may have CNAME)	IP Gateway	ChemIT Network	Headnode IPMI Network	OS	OS Version	UPS
Baird: 1 rack-mounted computational computer	ChemIT	as-chm-bair-08.ad.cornell.edu compute.baird.chem.cornell.edu	10.253.229.178	192.168.255.120	192.168.255.121	Windows Server	2012R2	NONE ( Suggested but not done )
Freed: Eldor	ChemIT	eldor.acert.chem.cornell.edu	10.253.229.96	192.168.255.87		CentOS	6.4	NONE
Petersen: 2 rack-mounted computational computers	ChemIT	calc01.petersen.chem.cornell.edu calc02.petersen.chem.cornell.edu	10.253.229.196/192			Windows Server	2012R2	Yes, but needs to be deployed in true production; using Widom's UPS for now. ChemIT using UPS for testing UPS-related control software.
Scheraga: 4 GPU rack-mounted computational computers	ChemIT	gpu.scheraga.chem.cornell.edu	10.253.229.70	192.168.255.139	192.168.255.138	CentOS	6.4	NONE ($900, estimate) Need to protect? Data point: Feb'14 outage resulted in one of these not booting up correctly.

What would it cost to UPS our 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

Cluster	Done	Not done	Notes
Loring		X	Unique: Need to do ASAP
Abruna		X	Unique: Need to do ASAP

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:

Computer	Note done	Notes
Coates: MS SQL Server	X	Unique: Need to do ASAP
Freed: Eldor	X	Unique: Need to do ASAP? (Q: Is OS backed up?)
Baird: 1 rack-mounted computational computer	X	Need?

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

Cluster	Compute node count	Power strip equivalents (~8/strip MAX)	Cost estimate, every 4 years	Notes
Collum	8	1	$900
Lancaster, with Crane (new)	10	2	$1.8K
Hoffmann	19	2	$1.8K
Scheraga	91	13	$11.7K
Loring	4	1	$900
Abruna	9	1	$900
C4 head node: pilot Widom's 2 nodes there.	N/A	N/A	N/A	This CCB Community head node pilot has no compute nodes of its own. It hosts compute nodes from CCB researchers.
Widom	2	1	?	Compute nodes are hanging off of "C4" head node, above.
TOTALS	~140?	21	$18K + Widom