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Thread: do not know what app to use, if any...

  1. #1

    Default do not know what app to use, if any...

    I have a home server... ftp and mail... and instead of upgrading the hardware on this server with a lot of mess... I have bought a second server (much cheaper one) and I want to share the resources (processor, ram and especially HDD space!!!) of the second one to the first one... I am running openSuse 11 on both machines... and do not know if it's a program that I should be using or simply a configuration... (sry if I have posted in the wrong thread...)

  2. #2

    Default Re: do not know what app to use, if any...

    I'm going to guess not to many people are going to answer it seems a bit devoid of what you really want.

    If you're after clustering then a volunteer forum may not be the best place. I suspect you're looking for a remote mount, with little to no investigation 2 come to mind sshfs or nfs. This would solve the shared hdd but I suspect would incur some loss in speed ymmv.

    As for the other I had a quick google for clustering postfix and ran away quite quickly but it would seem possible as would a ftp cluster as for the setting up and how I'm pretty sure that went beyond a volunteer forum into a lot of self learning and specific mailing lists.

    IMO I have to admit I would of thought a minimal headless/x-less home server with ftp and mail would need very little resources, perhaps migration would be for the best, or a reconfiguration of unneeded services on the server.
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  3. #3
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    Default Re: do not know what app to use, if any...

    Quote Originally Posted by Devineavenger View Post
    I have a home server... ftp and mail... and instead of upgrading the hardware on this server with a lot of mess... I have bought a second server (much cheaper one) and I want to share the resources (processor, ram and especially HDD space!!!) of the second one to the first one... I am running openSuse 11 on both machines... and do not know if it's a program that I should be using or simply a configuration... (sry if I have posted in the wrong thread...)
    Diskspace could be added easily using NFS. Can be done using YaST and when you get stuck the Forums here are quite capable of helping with NFS.
    Nertheless you should spend some thinking on what you want with the diskpace andd where you want to put what.

    About the usage of the CPU/RAM (when not used for the NFS serving) I suppose, as feathermonkey suggests, that more inside knowledge about your shop and the posibilities of remote execution is needed.
    Henk van Velden

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    Default Re: do not know what app to use, if any...

    As you can read from the previous posters, you have to be more clear about what you want to achieve and what for.
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  5. #5

    Default Re: do not know what app to use, if any...

    well the storage is needed for the ftp server... indeed nfs would be a solution... I have a lot of data on the current server... it's set up with raid 1... and i'm not looking for speed but I do need the space (on the ftp server are 30 or so users <friends, family> and back-ups from my computer...), so trying to migrate the data to bigger hdd's is a pain in the but, but i also want the extra cpu and ram... well, mostly cpu... and yes I was looking for someone that could help me with clustering... the extra cpu is going to be used for... let's just say "compiling"... I tried to do something solo... but I got stuck and I am in need of a "tutorial"... crash course on the subject... If you don't know how to help or for other reasons you can't, I'll be satisfied with some concrete documentation... I just can't seem to find any... so... any material on the subject would be of use... Thank you for you're help

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    Default Re: do not know what app to use, if any...

    Like said, you might be lucky if some cluster manager drops in (have seen some in the past), but this is a very specialized setup you're looking for. I can help on NFS, like the others, but this is beyond my skills (yet)
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  7. #7

    Default Re: do not know what app to use, if any...

    As I said, any help would be appreciated.. I know red hat has some sort of programs for the enterprise version that handle clustering, and i know a program for ubuntu and how to partially set it up... but i need something on suse and with documentation... so... thank you... and if you find someone willing to help please redirect them here... much appreciated

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    Default Re: do not know what app to use, if any...

    Was that "heartbeat" ? Maybe this helps:

    Start the software installer, check the top 4 options, and search for "cluster".
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    Default Re: do not know what app to use, if any...

    Clustering is not something to be done easily. First one should have some good knowledge about the subject (including hearbeat indeed, networking, client-server aspects). Then one must design ones solution taking into account the application (can it be split in application server and database server, is data to be mirrored, what should run where in normal day working, what should run were on failure, what should run where during maintenance) and the available hardware and tools. Which subnets to use where (seperate hearbeat network, loadsharing, etc., etc.
    All sorts of solutions are to be found including very poor man's clustering and take over.
    Henk van Velden

  10. #10

    Default Re: do not know what app to use, if any...

    @Devineavenger

    Why do you think that clustering is needed?

    Now far from all knowing and google is letting me down.. But I did find this RedHat: RE: vsftpd beginner's tutorial? which states
    Memory is NOT important for a dedicated FTP server, about 256 MB RAM is sufficient for a very big server
    Which ruled out ram that leaves cpu but I can't honestly see that being cpu intensive.

    So I'm lead to believe your postfix/mta is doing some major cpu eating i.e aggressive virus scanning and/or spam filtering. Surely this is a case of configuring postfix to run from the other one and the usage of remote mounts rather than looking at clustering.

    In all honestly I would expect the bottle neck to be at the disks or the network over cpu/ram unless we're talking ancient.
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