[Noisebridge-discuss] /missing/...

jim jim at well.com
Thu Mar 1 11:52:53 PST 2012


    there are people who've expressed interest in 
learning on physical devices. there's also a lot 
of interest in VM, of course. 
    Gopi*'s idea of laptops is a good one and the 
ASrock mobos in the newegg link look good, too. 
There's the new raspberry pie and so on. 
    Seems like a good set up would require one 
computer that can support VMs and then just 
about any other computers that can work as nodes 
on the same or other networks. 



On Thu, 2012-03-01 at 11:44 -0800, Ronald Cotoni wrote:
> We can do all of these complex configurations with virtual switches
> within Xen and other environments.  However.  I would not be against
> obtaining two of these
> http://www.newegg.com/Product/Product.aspx?Item=N82E16813157247 and
> some ram for them.  Low power, they have VT and up to 16gb of ram
> along with a PCI slot and usb 3.0!  CHEAP!  They would be perfect for
> learning.   
> 
> On Thu, Mar 1, 2012 at 11:39 AM, Gopiballava Flaherty
> <gopiballava at gmail.com> wrote:
>         What about laptops? I'll bet laptops with broken screens are
>         readily available. They could be used for configurations that
>         need lots of slower devices. I can probably donate a dozen or
>         more USB 1.1 to Ethernet converters so we could have low speed
>         but complex configurations.
>         
>         I'd love a resource like this to play with.
>         
>         Thanks,
>         
>         gopi at iPhone
>         
>         
>         On Mar 1, 2012, at 11:17, jim <jim at systemateka.com> wrote:
>         
>         >
>         >    One of the considerations that we in turing have
>         > discussed is electrical power: our plan is to have
>         > equipment available but not always on, rather mostly
>         > off, to be used for a few hours each week as part of
>         > a regularly scheduled class.
>         >    We've also looked at low-power machines such as
>         > ARM- or Atom-based systems. It seems good to have
>         > one machine capable of supporting VMs (Linux KVM)
>         > and one or two other machines that can serve as
>         > hosts on "other" LANs.
>         >
>         >    Note that working in a classroom allows more
>         > people to participate in the physical aspects of
>         > learning along with the convenience of the use of
>         > a projector and whiteboard at hand.
>         >
>         >
>         >
>         > On Thu, 2012-03-01 at 10:28 -0800, Ben Kochie wrote:
>         >> We've done most of the work to isolate the "important"
>         networking away
>         >> from the main rack.  There are still a few things that
>         people rely on
>         >> in the rack so it's not exactly safe.
>         >>
>         >> A few of us in the noiseops group have talked about
>         replacing the
>         >> existing rack wtih a smaller 9U cabinet mounted above the
>         closet
>         >> instead of the 20U rack on the floor.  The only thing
>         stopping us is a
>         >> bit of budget money to buy the rack and a few related items
>         to reduce
>         >> our server footprint to this smaller rack.
>         >>
>         >> The other issue with setting up a dedicated experimental
>         network rack
>         >> is the power cost.  Running a rack of servers/networking
>         gear would be
>         >> 1000-1500 watts of power.  That's another $120-180/month in
>         power
>         >> costs.
>         >>
>         >> On Thu, Mar 1, 2012 at 09:37, jim <jim at systemateka.com>
>         wrote:
>         >>>
>         >>>
>         >>>   (Summarizing prior discussions: ) The argument against
>         >>> using the existing rack is that it subjects the
>         noisebridge
>         >>> LAN to people screwing up. Having a separate "lab" space
>         >>> lets people configure multiple LANs and subnets and learn
>         >>> not only the physical aspect but the logical aspect
>         >>> (configuration and use of various software tools) without
>         >>> risking screwing up the LAN that everybody else in the
>         >>> space uses for internet access.
>         >>>
>         >>>   I believe that we as a community should isolate the
>         >>> elements of infrastructure and respect the maintenance
>         >>> (hard work by a few) and not feel like we can turn
>         >>> anything and everything into a robot. This is on the order
>         >>> of cleaning toilets, maintaining saw blades and drill
>         >>> bits, the LAN, the electronic tools, the sewing machines,
>         >>> and so on so that people can use them to do interesting
>         >>> things.
>         >>>
>         >>>
>         >>>
>         >>> On Wed, 2012-02-29 at 23:31 -0800, Ronald Cotoni wrote:
>         >>>> Hmm.  I like the idea of a place to learn how to properly
>         rack servers
>         >>>> and even moreso of proper cabling.  Now, I am wondering
>         if we could
>         >>>> use the rack in the electric closet as an example or
>         something like
>         >>>> that.  I mean it would be just like working with live
>         stuff.  Would
>         >>>> breaking something in the electrical closet break
>         internet for
>         >>>> everyone?
>         >>>>
>         >>>> On Wed, Feb 29, 2012 at 10:25 PM, jim
>         <jim at systemateka.com> wrote:
>         >>>>        On Wed, 2012-02-29 at 22:16 -0800, Brian Morris
>         wrote:
>         >>>>> I'd sort of reconciled myself to laptops, somebody gave
>         an
>         >>>>        ancient one
>         >>>>> (900mhz) but I need a 15volt 4 amp powerbrick. I already
>         >>>>        went through
>         >>>>> the bins on Tuesday afternoon. It could use a stick of
>         pc100
>         >>>>        256mB or
>         >>>>> two as well. The main problem is parts are expensiver
>         and
>         >>>>        hard to find
>         >>>>> and graphics cannot be updated.
>         >>>>
>         >>>>        JS: seems to me easy enough to make a power supply
>         that's 15V
>         >>>>        at 4A
>         >>>>        with what's lying around. Not pretty, only
>         clumsily portable,
>         >>>>        but
>         >>>>        do-able. Finding the RAM is a matter of luck, I'm
>         guessing.
>         >>>>>
>         >>>>> If there is space in an electrical closet for storage,
>         >>>>        perhaps we
>         >>>>> could establish some basic policy and post it where
>         people
>         >>>>        can see it.
>         >>>>> Labels including a recent date and contact info - or
>         else
>         >>>>
>         >>>>        JS: I'm confused. why an electrical closet? to
>         store what?
>         >>>>           The bins and shelves around the electronic
>         equipment
>         >>>>        have various hackable gizmos. I think the policy
>         is to grab
>         >>>>        something and tear it apart, use what you like,
>         then put
>         >>>>        what you've built in some safe place (like your
>         house or,
>         >>>>        if you're brave, "your member shelf"). I'm
>         guessing you
>         >>>>        have something different in mind.
>         >>>>
>         >>>>>
>         >>>>> On Wed, Feb 29, 2012 at 9:44 PM, jim
>         <jim at systemateka.com>
>         >>>>        wrote:
>         >>>>>
>         >>>>>
>         >>>>>           What I would like a lot is that we all stop
>         being
>         >>>>>        hasty. It's easy to get off on doing stuff and
>         >>>>        making
>         >>>>>        things better and fighting evil-doers and making
>         >>>>        things
>         >>>>>        more in our images and so on.
>         >>>>>           Take it easier, don't take things too
>         seriously,
>         >>>>>        relax, accept, focus on a personal creation, even
>         if
>         >>>>>        the FBI or Salvadore Dali Lama or some
>         pornographers
>         >>>>>        show up....
>         >>>>>           I like that the place gets clean and cleaned
>         of a
>         >>>>>        bunch of crap that piles up, but in the fervor to
>         >>>>>        accomplish goodness a bunch of people have been
>         hurt
>         >>>>>        and there's been toxic division. How about making
>         a
>         >>>>>        point to take more time, not one week but one
>         month.
>         >>>>>        Sure it takes more time to get less done, but
>         it's
>         >>>>>        worth protecting the things that matter
>         most--each
>         >>>>>        others' reasons to be here, no matter how wacky.
>         >>>>>
>         >>>>>
>         >>>>>
>         >>>>>
>         >>>>>
>         >>>>>        On Wed, 2012-02-29 at 20:33 -0800, Ben Kochie
>         wrote:
>         >>>>>> I talked to jim and it is likely the 1U computer
>         >>>>        was put in
>         >>>>>        ewaste.
>         >>>>>> This is my fault for not reviewing things more
>         >>>>        closely. My
>         >>>>>        criteria
>         >>>>>> for ewaste is fairly harsh.  I have already
>         >>>>        offered to
>         >>>>>        replace the
>         >>>>>> machine.
>         >>>>>>
>         >>>>>> On Feb 28, 2012 5:57 PM, "maestro"
>         >>>>        <maestro415 at gmail.com>
>         >>>>>        wrote:
>         >>>>>>        # in the bullshit taking shit out of
>         >>>>        turing the tote
>         >>>>>        has been
>         >>>>>>        found and seems to have things in tact,
>         >>>>        however...
>         >>>>>>        # the pc tower that was with it has NOT
>         >>>>        been found
>         >>>>>        and was
>         >>>>>>        clearly tagged turing and had cardboard
>         >>>>        taped over
>         >>>>>        that...
>         >>>>>>        # where is this computer?...
>         >>>>>>        # jim has a single unit computer that
>         >>>>        belongs to his
>         >>>>>        friend
>         >>>>>>        that was in the "rack" room adjacent to
>         >>>>        the library
>         >>>>>        where the
>         >>>>>>        house rack(s) are...
>         >>>>>>        # where is this computer?
>         >>>>>>
>         >>>>>>        end comments
>         >>>>>>
>         >>>>>>
>         >>>>>>
>         >>>>        _______________________________________________
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>         >>>>>>
>         >>>>>
>         >>>>
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>         >>>>>>
>         >>>>>> _______________________________________________
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>         >>>>>>
>         >>>>>
>         >>>>
>          https://www.noisebridge.net/mailman/listinfo/noisebridge-discuss
>         >>>>>
>         >>>>>
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>         >>>>
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>         >>>>>
>         >>>>>
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>         >>>>
>         >>>>
>         >>>>        _______________________________________________
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>         >>>>
>         >>>>
>         >>>>
>         >>>>
>         >>>> --
>         >>>> Ronald Cotoni
>         >>>> Systems Engineer
>         >>>>
>         >>>
>         >>>
>         >>> _______________________________________________
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>         >>>
>         https://www.noisebridge.net/mailman/listinfo/noisebridge-discuss
>         >
>         >
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> 
> 
> 
> 
> -- 
> Ronald Cotoni
> Systems Engineer
> 
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