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How do you do....it? Thread, Order of kit in a Server Cabinet in Technical; Now I know theres probably no right and wrong answers to this question, but I am currently in school today ...
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    Sylv3r's Avatar
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    Order of kit in a Server Cabinet

    Now I know theres probably no right and wrong answers to this question, but I am currently in school today unboxing our new kit ready to rack into our cabinet over the next week. Does anybody have any preferences or hints and tips as to the best order to the put the following kit into an empty server cabinet.

    2 x 1U Switches
    1 x 1U Autoloader
    1 x 2U Diskbox
    2 x 2U ESX Servers
    1 x 2U SAN
    2 x 2U UPS's

    I am thinking the heaviest stuff at the bottom, but other than that, I can't really think of any necessary order. I'd be interested in hearing your views.

    Right now back to the unboxing - as you some of you may have seen the picture I have just posted on twitter - these UPS's are going to take some moving for one person!

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    plexer's Avatar
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    ups, autoloader, san, servers, diskbox ,switches

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    Sylv3r (25th June 2011)

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    Sylv3r's Avatar
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    Quote Originally Posted by plexer View Post
    ups, autoloader, san, servers, diskbox ,switches
    Cheers - I take it you are talking bottom - up?

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    bossman's Avatar
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    UPS,Servers,San,diskbox,autoloader,switches and if you have one a KVM with smoothwall.
    Bottom up

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    Sylv3r (25th June 2011)

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    Sylv3r's Avatar
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    Quote Originally Posted by bossman View Post
    UPS,Servers,San,diskbox,autoloader,switches and if you have one a KVM with smoothwall.
    Bottom up
    Bottoms up

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    featured_spectre's Avatar
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    UPS at the bottom, always always always.
    SAN just above
    Servers just above
    Diskbox just above
    Autoloader just above
    Switches at the top

    If you have a Smoothwall box and a kvm, put them under the switches.

    Similar to bossman, but not quite the same :-)

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    Sylv3r (25th June 2011)

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    FN-GM's Avatar
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    You dont want your rack top heavy, so i tend to fill racks with the heavier stuff at the bottom and the lighter stuff at the top. Then the KVM in an appropriate place so you can use it.

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    Sylv3r (25th June 2011)

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    Sylv3r's Avatar
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    Quote Originally Posted by nephilim View Post
    UPS at the bottom, always always always.
    SAN just above
    Servers just above
    Diskbox just above
    Autoloader just above
    Switches at the top

    If you have a Smoothwall box and a kvm, put them under the switches.

    Similar to bossman, but not quite the same :-)
    This was my initial idea - if anybody else can argue against it, I will probably go with this.

    Thanks everyone for your ideas up to now.

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    I'd go with that.

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    featured_spectre's Avatar
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    sounds like its a winning combination lol

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    GrumbleDook's Avatar
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    3 things to consider when installing kit into your rack.

    1 - H&S. Racks and kit in racks has to be considered under 2 areas of H&S ... a) use of equipment and b) how the equipment impacts on the H&S of the server room / environment

    To some extent it is affected by how you make use of the kit in the rack, either by remote / lights out or by hands on / direct KVM access. If you are hands-on at the KVM then you should consider the length of time spent at it, the range of people accessing it and the varied requirements for this. Also consider the other aspects of working environment within the room containing the rack (eg noise, temperature, working space, etc).

    The placement of equipment should also be planned against other aspects of H&S such as moving / lifting equipment, space hazards, fire hazards, etc. Sometimes the placement or relocation of heavy equipment will be determined by the available people / tools to lift / move the equipment.

    2 - Maintenance. Although it is expected that equipment, once purchased and installed, will just work, we have to accept the reality that things can and will go wrong. All equipment installed in the racks should be in a position to be individually serviced or removed without affecting any other device within the rack (apart from technical / logical dependencies ... eg equipment plugged into the UPS, servers using the SAN). As much as there is a H&S requirement on staff which support the kit within the school, there is also a requirement to look after those who come to service / replace equipment / parts. There is nothing worse than trying to have to squeeze down the back / side of the rack to do some work, trying to dislocate your arm so you can find that one cable to unplug so you don't rip everything else out of the core switch when having to replace a unit.

    3 - Security. All equipment should be appropriately secured, logically and physically, no matter where the location of the rack. This might mean that certain equipment has to be placed in particular racks in a school, in particular locations, due to security. The MIS box, SAN and backup system might be kept in a more secure rack (eg one that actually *has* a lock on it!) because other racks in the server room, or racks in other locations, are not secure.

    Saying all of this though ... @bossman does cover it quite well, but for anyone who has to consider things from scratch it is worth considering the above.

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    Roberto (28th June 2011)

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    Butuz's Avatar
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    One thing I would note is to always leave at least 2u, preferably 4u spare at the bottom before fitting your UPS's. Just in case of a possible flood really, having UPS's right at the very bottom means if you get more than a couple of inches of water, god forbid, you could be risking your entire rack as a UPS getting flooded out has the potential to fry anything connected to it and possibly catch fire if your really unlucky.

    Apart from that consideration the rest of the advice above is spot on.

    Butuz

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    plexer's Avatar
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    Poroblem with that though is if the ups are the reasonably large ones is getting them into place, I guess the mounting rails for them fix front and back though.

    Ben

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    Just had a thought ... does anybody actually close and lock their cabs?

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    FN-GM's Avatar
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    Quote Originally Posted by thepineapplehead View Post
    Just had a thought ... does anybody actually close and lock their cabs?
    I close the doors but not lock. The server room is locked up anyway and a few people only have the keys so it doesnt really matter.



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