Performance and memory usage on SBS 2011 standard

Posted on 2011-10-12
Last Modified: 2012-05-12
Recently setup SBS 2011 stnd on IBM X3400M3: M5015 Server RAID/512, 300GB RAID1 (10K SAS), 500GB RAID1 (6GB/s), 16GB DDR.
Less than 10 clients connecting.
No intensive database applications running but holds Trend MIcro Worry Free 7 advanced and runs Shadow Protect for backups.
The server was involved in migration from SBS 2003.
I havn't setup sharepoint services or windows backup as yet and event log does need a bit of cleaning in relation to these.

Task Manager > Performance indicates:

Physical Memory:

Total        16372
Cached    3546
Available  3552
Free          53

This doesn't seem right?

Why do I have only 53 MB free?
Question by:stevenvel
    LVL 95

    Accepted Solution

    You have 3552 available.

    Exchange will EAT RAM by design but free it up as needed.  I would say this sounds normal.

    Author Comment

    Thanks Lee,

    How would I know what the server is capable of with these sort of figures?
    For example, can I load a database application say SQL based with out installing anymore RAM?
    What if I wanted to install a virtual machine?
    How much RAM is enough?
    LVL 95

    Expert Comment

    by:Lee W, MVP
    What do you want it to be capable of?  SBS has a max of 32 GB of RAM.  You can consider just adding more RAM today... but in general, 16 GB for a 10 user office, even with SQL on it.

    SQL Express?  There are SEVERAL already installed.  You can control SQL usage.  If you want it to run SQL (non-express version), then you should consider adding more RAM.

    DO NOT install any virtual machines on an SBS server.  SBS is unsupported when hosting virtual machines.  It can complicate network configurations and break wizards.  You can install SBS IN a VM, but not VMs on SBS.

    For a network of 10 users, I'd stay with what you have, RAM wise... keeping in mind that you MIGHT have a configuration that is not what I expect and it's always possible you need more RAM/CPU/etc.

    Author Comment

    I appreciate you clarifying this.
    Based on your comments at this stage I don't think I will need any more RAM.
    The main role of the server is file/printer sharing, shadow protect snap shots, exchange and some remote web access.
    I think I will focus on ensuring efficient utiliaztion of exisiting memory.

    While on the topic of SBS and memory, not sure if you care to comment about SBS essentials? -otheriwse I can post seperate question.

    Does SBS Essentials also 'chew up memory' very quick and realease it when required?

    (I am planning to setup my first essentials server - once again fairly basic requirements - mostly file/printer sharing. I was thinking of 8GB to atart with).
    LVL 95

    Expert Comment

    by:Lee W, MVP
    Strictly speaking, Essentials should be a separate question.  I don't recall RAM limits in it (might also be 32 GB... might be less).  It's not so much that SBS chews up RAM - it's Exchange - Exchange on SBS and Exchange on non-SBS will behave the same way.  Since Essentials doesn't have Exchange, you can generally expect it to not have the RAM considerations that Standard does.

    Just keep in mind - you can't add an SBS essentials box to your existing SBS Standard domain - only one SBS server per domain is permitted (with the exception of a short grace period for migrations).

    Author Closing Comment

    Thank you Lee!

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