What to use for VM Host Machine for a SBS 2008 Premium? Backups? Fax?

We are going to be replacing a SBS 2003 Server & a Separate 2003 R2 Terminal Server w/ SBS 2008 Premium.   We only have the option for 1 new Physical Server & are looking at Virtualizing, but with the hardware limitations in VM's for backup & Fax are not sure which way to go.  We still have a need to use tape backup & are looking at Backup Exec again,  & would like to start using the fax Service.  

 If I install the Windows 2008  as a Host OS w/ Hyper-V, then the SBS Std on the 1st VM,  I can Install a 2nd VM as a SQL &  TS  Server.   Problem is -  How would I backup?   The Host OS shouldn't be on the Domain, so if I install Backup Exec &  tape drive there & agents on the VM's  I would think security would be a issue.  Also how could we use the Fax Service?  Could it exist on the Host?   Security issues there?
ggobleAsked:
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ggobleAuthor Commented:
Ok, sorry for the delay, but I think I sorted this out.  

We are going to have the server running Windows 2008 server w/ hyper-V.  Run the SBS Std (1st server) on it as a VM, and run the SQL and TS on another windows 2008 VM.  This will all be done with our SBS Premium Server licensing.

 We will use Backup Exec System Recovery on both of those VM's (installed locally on each VM) to backup to the Host 2008 Harddrive via a share.  
We will then backup the Host Machine w/ Backup Exec to a Ext USB HDD and duplicate to Tape.  We may also use BESR on the Host machine to speed up that recovery time as well.  

We may also add a second identical server in our branch location running Windows 2008 Standard and use DFS-R on it.  It would also have Hyper-V ready on it for Disaster recovery.  Just not sure if we will put the host in that branch in the domain or run a VM on it to do the DFS-R incase we do need to failover to that machine with the SBS and SQL VM's.  But I'll ask another question on that.

The Fax service will have to wait, but I should be able to get it going on the Host system somehow, wether it is on the domain or not.

Thanks for some insite on this.  All the info I compiled with this site and talking with some vendors etc... led to this solution.

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gilgetCommented:
you can do just as you described and your fine, but I guess you can have only one SBS server in a network, thats the SBS limitation as far as I know.

security wont be an issue.
just make sure to give a user with appropriate rights of the domain to the configuration of your backup software / agents and you should be fine.

as for the host machine, this one depends on how much money you can spend.
but having a 2008 server running services and vms with services is quiet a heavy load.
I would suggest a 2 x QUAD CORE / 16GB or 32GB memory.
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Andres PeralesCommented:
You would have one SBS server and your second server would be just a windows 2008 server, you can have more than one server in an SBS Domain, you just can't have more than one SBS server...
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ggobleAuthor Commented:
So if I understand you correctly I can  assign the Domain user  rights in the Host Server OS Backup Exec even though it is not a Member of the Domain?  I don't understand how that works .  How can I set that?  Is there any kind of documentation on how this atop would work?

Yes we are Doing a Server w/ Dual Quad Cores & ~16 GB of Ram.  From what I understand I should also be looking at RAID 10 for the VM files.
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gilgetCommented:
well, for the VMs, I guess a lvl5 would do it too.

but for the other thing its the other way around.

you have your host that is not on domain with backup exec.
you have 2 hosts on domain without backup exec.

on every host you make a local user with same username / password. not a domain user.
then you give this user full access to the filesystem and other roles needed for backup.

then give your backupexec service on your host server this new configured local username/pass, this should work.

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ggobleAuthor Commented:

Any other thoughts on what would be needed for Backup Exec licensing?  We have existing BE for SBS license we could upgrade to the BE for premium SBS, and add windows agent for the 2nd 2008 server, but will the BE for SBS licenses work on our host server since it is not SBS?  Would I also need a 2nd windows agent for the host?

Also on the Fax service in 2008 is it similar to the one in 2003 SBS?  I've only used it on SBS 2003 and older, we would need to use it on the Host 2008 server (Windows Server 2008 Std) for the hardware to work.  Will this work correctly still?  Is it included with the Windows Server 2008 Std or only in SBS?  Would it be better to put in a 3rd party driver on the SBS to run a modem on the host?  I've seen some people mention this.
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