Distributing Exchange Services on SBS 2011

We are upgrading our SBS 2008 standard server to SBS 2011 standard. We are having problems with "Extremely" high RPC requests on the server. We are running Symantec End Point Protection for Exchange and plan to install the most updated version. I believe the current servers woos are due in part to the its playing the role of antivirus scanning.

WIth exchange 2007/2010 you can split out roles to other servers, edge transports and the like. Is i possible to do that with SBS 2011 Standard?

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Joseph_BarronAsked:
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Cris HannaCommented:
Technically and legally all components of SBS must remain on the same box.  how much ram in the server?  Tell me about the disk configuration
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Joseph_BarronAuthor Commented:
Dual xeon proc. 12gb ram, 6 each triple channel. 2 mirrored 500 mb drives for os and 2 mirrored 1 TB drives for data. Plan to exchange store on 1tb drives and trans log on os drives.  
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Cris HannaCommented:
Are the drives mirrored via the OS, an integrated on motherboard raid controller, or separate raid controller.  how many users?
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Joseph_BarronAuthor Commented:
Mb integrated controller. 15 users, 32gb exchange store, about 8 phones active sync. No real share point usage.
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Cris HannaCommented:
My first suggestion is that you need to bump RAM to at least 16 GB (24 would be better)

I think you would also benefit by moving drives to a dedicated controller, but that almost certainly would require a reinstall...not an exciting prospect.  Onboard controllers notoriously slow things down.

What are you using for AV protection on the workstations?
My other recommendation would be get the AV protection off the server..and move to a UTM firewall
Think of the castle and moat analogy.   a Firewall with UTM acts as the "moat" to keep everyone out of the castle, except those you choose to let through

In your current setup...only email is being scanned and only after it gets in the castle.

But definitely need more RAM
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Joseph_BarronAuthor Commented:
We are running a 5505.

The config was for a new server. I took your suggestion and added a seperate controller to the design and 1 additiona 1TB drive. So we will have 2 x 250 GB RAID 1 for OS and trans log of Exch. and 3 x 1TB drives RAID 5 for data. We are decommissioning he existing server to make a database server for document management system.  Thats about all the budget will allow.

The system has dual Xeox 2.53Ghz processors, each with its own 6GB of triple channel RAM.

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Cris HannaCommented:
RAM is not assigned by processor
Exchange is a RAM hog!  It will take as much RAM as it can get.

I think the Controller will help, but this system really needs more RAM
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Joseph_BarronAuthor Commented:
10 GB is the recommended and I'm over that with 12. Next stop would be 24, the max and it gets real expensive right now for those chips.

I didn't say assigned, but there is a connection between the memory and the processor. I'm not a spec junky.
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Cris HannaCommented:
10 GB is the recommended RAM for 5 users not doing a whole lot.   I would suspect that navigating around the console on SBS is very slow...

Although no others have chimed in, you'll have to take my word as the longest awarded Microsoft MVP for small business server(since 1997) that performance would be enhanced significantly by adding more RAM

But you should see some benefit moving the drives to a dedicated controller.
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Joseph_BarronAuthor Commented:
Went with recommendation of 24GB of RAM
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