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User: dy2t

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  1. Fit 120 HDDs in 4U enclosure? on Should a Teenage Entrepreneur Sell Out To Facebook? · · Score: 1
    My rough calculation says the volume of 120 HDDs (3.5") will use 90% of the volume of a 4U container. I can't imagine how to physically position the HDDs inside the container.

    Maybe they are using 2.5" HDDs each of which has 8x less volume than a 3.5" HDD. That would be an easier exercise.

    In either case, the drives are probably not hot-swap (unless you do it like a puzzle)

  2. Re:They Just Don't Get It... on Star Trek Game To Launch Alongside New Movie · · Score: 1
    I agree completely. The Star Trek: Judgment Rites released following that game was also great and seemed to capture to a suprising degree the flavor of the old show.

    I just saw the "Not your father's Star Trek" trailer for the movie the other day. It seems to dovetail this new mindless shoot'em up game. I'm sad to see Star Trek de-evolve from an interesting, optimistic future into a rehash of Tom Corbett or Flash Gordon fighting BEMs (but with better sfx, of course.)

    Yes, I am old.

  3. LACP on One Failed NIC Strands 20,000 At LAX · · Score: 2

    Also known as IEEE 802.3ad supports aggregating NICs to both improve overall bandwidth as well as gracefully deal with failed links.
    More info at http://en.wikipedia.org/wiki/Link_Aggregation_Cont rol_Protocol

    Systems seem to be more commonly shipping with multiple NICs (esp. servers) so maybe this will be used more and more. It is important to note that the network switch/router needs to be able to support LACP (dumb/cheap switches do not while expensive/managed ones do) so that might be a barrier. Cisco switches and maybe others have implemented proprietary trunking/aggregation schemes but this 802.3ad is a standard.

    In practice, I tried to use LACP with a Linksys SRW2048 $800 switch (targeted at small-businesses, much cheaper than typical managed switch) but it did not work reliably (performance got worse, some clients could not connect/timed-out.) Still working on it.

  4. Re:So how do you manage your Sun patches? on Local Root Vulnerability in passwd(1) on Solaris 8, 9 · · Score: 1
    Solaris SRS Net Connect is a relatively recent system management offering. I saw a demo of it recently and, among other things, it supposedly automatically alerts you of new patches of your system(s). It probably just uses PatchPro to do that, though. It is a free product for now (with extra services that you can buy) and you need to have all your system info stored on a centralized system managed by Sun, but I am sure they promise not to spy on you.

    I think that PatchPro requires you to have a service contract/ESID number with Sun (not a problem for most companies, I guess.) I believe also that even access to the Solaris bug database (just to read descriptions--handy if you are trying to figure out if a problem is due to you or Sun) can only be done if you are a paying Solaris customer.

  5. Re:This will linger on for quite a while... on Local Root Vulnerability in passwd(1) on Solaris 8, 9 · · Score: 2, Informative
    I have used Live Upgrade to manage patches on Solaris systems. It lets you create a clone (or "alternate boot environment" in Sun's terminology) of your running system then apply the patches to the clone. The whole time the patching is taking place (and it can take a while) the "original" system is still running as usual (well, maybe a little slower due to the patching of the cloned system.)

    When it is done, you just need to reboot and your system is patched. If something does not work, it is very easy to just reboot back into your original, pre-patched boot environment then figure out what went wrong (kind of like a save game feature!)

    So, Live Upgrade is handy for maximizing uptime while not ignoring patches. Like you, I do not understand why so many Solaris patches want you to apply them in single user mode, then reboot afterwards, though.