[Beowulf]Infrastruture planning for small HPC 40/100 gigabyet eyhernet or Infiniband?
gerry.creager at tamu.edu
Thu Jul 24 08:33:02 EDT 2008
My next home will have multiple fiber pairs to high-use rooms, plus
convenience wireless. I don't intend to pull copper through the walls.
I plan to put switches in rooms that need multi-drop and have at least
one pair of fiber for high-speed access for a server, NAS, or cluster
leading back to the wiring closet and patch panel.
With a glass infrastructure you can support a lot of technologies.
> I am, wirin my home for a high-speed intranet, to internet fateway. I
> had ;planned 10/100/1000 and Catb6 cables, but with the merger ofr
> entertainment, my 50,000 book digitial ,ibrary (anffrowing), as well as
> statistcal modeling of econometrics and comnpamies including hedging
> (Monte Carlo Simulations) will als be doing video and audio editinmg and
> some web site hosing.
> wuith 40/1000 ethernet being talked about as well as InfinioBand should
> i just wire forone of those insted as senseless to cut acallopen twice.
> The storgage area for the centralized computers and data storage, nodes
> will als have some, is already wired, cooling vents cut and installed to
> dump excess het into the building, it is a condo, exhaust stsrem as
> wellas the room can be closde and kept air=conditioned with the heat
> dumbs turned off.
> My question is the wiring with the wotk i do, my2 terabytes is full
> bringing 3 more on line, and exopct much more, it only makes sense to
> look at the backbone to see if it will be abottle neck.
> What are your feelings. 10/00/100, 40 gigabyte ethernet,or 100 gigabyte
> eithernet or InfiniBand? I can run the CAR 6 and just change switches
> and routers later as needed but is far cheaoer to put it the wire growth
> path now. What do you recommend. we will be runnng anywhere from 6 at
> the start to 40 cores, te database will be a dedicated node, maybe if
> overloaded a 2nd database or nas WILL BE ADDED. i USE scsi SYSTEM
> REFERRABLY AS TRAINED THAT WAY BUT MAY ALSO LOOK AT rAID AT LEAST rAID 5
> sata SYATES, WITH FAST DUAL or a QUAD iore, or multile Dual or Quad
> Cores in the groth path.
> whawould you sujest as homes will soon neeed a central data management
> vault where even game consoles feed the system instead of multiole
> cmputers everywhere.
> Later we will be doing the smae to a TESDA accreduted Private Philippone
> Technical Collegee with approximaeyly 150 nodes, and muliple servers and
> NAS systems, so plannong goes for both. and my home HPU may be the daily
> offsite, out of the cointry even,daily back up, I canm get guranteed
> bandwidgth so tey could actually use server here but that pushes it with
> internationak work in real time as the Philippines is far ferom haHawaii
> in rebilility. And the Philippine Static Modem is tooslowfor that many
> to access in real time. Thank y
> --- On *Wed, 7/23/08, Gerry Creager /<gerry.creager at tamu.edu>/* wrote:
> From: Gerry Creager <gerry.creager at tamu.edu>
> Subject: Re: [Beowulf] Drive screw fixed with LocTite
> To: "Perry E. Metzger" <perry at piermont.com>
> Cc: beowulf at beowulf.org, "David Mathog" <mathog at caltech.edu>
> Date: Wednesday, July 23, 2008, 5:12 PM
> Perry E. Metzger wrote:
> > "David Mathog" <mathog at caltech.edu> writes:
> >> A vendor who shall remain nameless graced us with a hot swappable
> >> caddy in which one of the three mounting screws used to fasten the
> >> to the caddy had been treated with blue LocTite. This wasn't
> >> from external inspection, but the telltale blue glop was on the
> >> when the screw finally let go and came out. It was beginning to look
> >> like power tools were going to be needed to get it out, and the screw
> >> head was pretty badly torn up after removal.
> > I believe a touch from a soldering iron will usually loosen LocTite,
> > but that might also damage a drive, so be careful.
> Acetone or mineral spirits will also take care of locktite. Based on
> some rather harsh experience showed that the piddly little heat
> generated by a soldering iron won't really cause much damage.
> >> This is the first time I have encountered a drive screw on a removable
> >> drive which was, well, unremovable. Is this a trend or are we just
> >> dealing with a sadistic assembler?
> > I've never seen it used with a drive, it is certainly not normal.
> > Perry
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> Gerry Creager -- gerry.creager at tamu.edu
> Texas Mesonet -- AATLT, Texas A&M University
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Gerry Creager -- gerry.creager at tamu.edu
Texas Mesonet -- AATLT, Texas A&M University
Cell: 979.229.5301 Office: 979.862.3982 FAX: 979.862.3983
Office: 1700 Research Parkway Ste 160, TAMU, College Station, TX 77843
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