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John
John
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Hi all,

I apologize up front if this post is like kicking in an open door.
I found some info about the COS System Requirements, but I still have a question about this.

One of my boxes is 64 bit, but it only has 1Gb of RAM and so far it is running just fine ... but at the moment I don't do much with it besides DHCP and PXE true a Flexshare and I am the only user.
I intend to use more services on it in the future, but before I do that I would like to know what processes require more RAM.
All I know is that 64 bit can use more than 4Gb of RAM.
Can someone please explain to me why I should install more RAM into my box and for what purpose ... ?!?

Please advice,

John
Thursday, February 20 2014, 02:46 PM
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  • Accepted Answer

    John
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    Tuesday, February 25 2014, 08:49 AM - #Permalink
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    Thanks for the info Tim.

    I will seriously consider upgrading my RAM.
    It is my home box and I intend to experiment a lot with it and I don't want to get into trouble because of too little RAM.
    And because it's a 64bit box, it just sounds better with at least 4Gb of RAM even when it's just for 1 user ... for now.

    Greetings,

    John
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    Sunday, February 23 2014, 09:39 PM - #Permalink
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    It's a case of 'try it and see'

    If 1GB is performing fine then stick with it...you need to watch that your system does not start swapping out memory to disk (which is slow). If it does then you'll need to add more RAM to ensure that it remains at peak performance. If your system is very lightly used its possible that you might not even notice the extra hard drive activity so go with 1GB until you move the services across.... the output of 'top' during usage helps to monitor

    4GB is a good starting point, particularly as RAM is relatively cheap nowadays.
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    John
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    Friday, February 21 2014, 04:00 PM - #Permalink
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    Thanks Nick & Alex,

    I think I will upgrade my RAM soon too ... just to be on the save side.
    Not sure yet if it's going to be 2, 3 or 4Gb ... that depends on the RAM that I have lying around here and the price of new RAM.

    Greetings,

    John
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    Alex
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    Friday, February 21 2014, 03:34 PM - #Permalink
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    There's no straight answer for this.
    I have several clearos implementations. On one, a 1GB RAM clearos 6 installed on a vmware ESXi 3.5 serving a small internet cafe with 15 users, keeps coredumping the squid proxy service after some weeks of use, due to insufficient (virtual) ram.
    I'll replace this as soon as possible.
    So you just have to do the math; i think Nick's guessing is quite reasonable.

    Alex
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    Thursday, February 20 2014, 09:48 PM - #Permalink
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    I'd be a bit nervous of 1GB. I currently run 4GB and looking at my memory usage, kernel+apps hovers just under 2GB and I don't use Zarafa, or squid but I have a fairly large rule set from Emerging Threats for snort. I only really have a couple of users and the Plex. I'm about to replace the box so I'm going for 8GB. There is no real rationale behind it only, by observation over the years, memory requirements for what is considered basic functionality always seems to increase.
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    John
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    Thursday, February 20 2014, 09:19 PM - #Permalink
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    Thanks Nick,

    The reason why I chose for the 64bit version is, because the hardware it is running on supports it.
    Now that I know that it will be possible to upgrade to version 7 makes it the only choice.

    I know this is a hard question to answer because my box is not yet finished.
    But that still does not answer my question about the best amount of RAM to use ...

    Please assist,

    John
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  • Accepted Answer

    Thursday, February 20 2014, 06:44 PM - #Permalink
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    64bit for a single user is a bit of overkill but, on the other hand, I think everyone should use 64bit as RHEL are dropping 32bit for v7 so there will be no upgrade path beyond ClearOS 6.x for those on 32bit.
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    John
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    Thursday, February 20 2014, 06:22 PM - #Permalink
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    Thanks Ben,

    The last time I checked Zarafa it was too complicated for me so I guess I won't be installing that.
    The others that you mention are AFAIK system services.

    How much RAM would you suggest for 1 user, because so far the response time of my box is already really fast with just 1 Gb of RAM ... ?!?
    Would it make any sense to go to 2Gb- or 4Gb of RAM ... ?!?
    I mean ... it is a 64bit box so ... I know little to nothing about the advantages of 64bit ... :blush:

    Please advice,

    John
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  • Accepted Answer

    Thursday, February 20 2014, 03:03 PM - #Permalink
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    John,

    Here's a list of the following services I'm aware of that like to consume RAM (no particular order):

    [ol]
  • ClamAV

  • IDS (Snort)

  • Zarafa (SMB or Community)

  • Squid/DansGuardian

  • [/ol]

    B
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