Is it safe to install Exchange 2010 Edge Transport server on the same server as Hub Transport server?

Hello Experts,
I am planning to upgrade my single Exchange 2003 server to 2010.

Current environment:
Single Exchange 2003, single database (70GB), single site, 100-200 users.

I am not sure how many exchange server roles should be running in separate box/network.

Q#1. Is it technically ok to install all Exchange roles (including Edge Transport server) in single server?

Q#2. Is it practically safe enough to install all Exchange roles (including Edge Transport server) in single server?

Q#3. Is the performance ok (for my size) if I run Exchange 2010 in VMware (ESX4) environment?

Q#4. Anyone has any virtualization experience of Exchange 2010? What's your configuration?

Thanks a lot.
richtreeAsked:
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Glen KnightConnect With a Mentor Commented:
>>Q#1. Is it technically ok to install all Exchange roles (including Edge Transport server) in single server?
No, you will not be able to install the Edge Transport role on a server that has any other Exchange Roles on it.

>>Q#2. Is it practically safe enough to install all Exchange roles (including Edge Transport server) in single server?
In a small environment yes, apart from the Edge Transport role for the reasons above.

>>Q#3. Is the performance ok (for my size) if I run Exchange 2010 in VMware (ESX4) environment?
Yes, Absolutely, much larger environments run in VMWare very well.

>>Q#4. Anyone has any virtualization experience of Exchange 2010? What's your configuration?
I have many Exchange 2010 installations running in a virtual environment, in a mixture of single server and multiple server clusters, with o DAS and SAN.



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richtreeAuthor Commented:
Thank you for your clarification. I almost think of combining ETS with other roles.
Would you please provide some virtualization configuration information for your virtual Exchange 2010? e.g CPU, memory, NIC, storage?

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Glen KnightConnect With a Mentor Commented:
Well it really does depend.  I tend to virtualise a single SBS installation these days, with a minimum of 16GB of RAM, storage dependent upon requirements, everyone is diffferent.

CPU regular Quad core Xeon will be moer than sufficient for a single server.
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richtreeAuthor Commented:
I feel the memory, cpu requirement is more straightford for the virtual exchange. But I am not sure about the storage performance for it. Would you please tell me what kind of storage do you use for your virtual Exchange server? e.g. Is it ESX local disk or iSCSI SANor Fibre Channel SAN? What type of disk (SCSI/SATA/SAS)?
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Glen KnightConnect With a Mentor Commented:
I have a mixture, some using Direct Attached (DAS) SCSI/SATA & SAS disks.

I also have SAN's mainly iSCSI

Exchange 2010 has been designd for lower cost disks, so SATA will be OK but go for SCSI or SAS if using DAS but iSCSI or FC will be fine too.  I have a customer with over 2000 mailboxes running on a LeftHand iSCSI SAN.
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richtreeAuthor Commented:
Thanks a lot.
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