Dell has released an updated set of advisor tools for Exchange 2010. The tools can be used for rough sizing of servers and storage and utilizes Dell’s Equalogic, PowerVault, EMC and PowerEdge components. Unfortunately, and contrary to the HP Sizing Tools for Exchange 2010, the Dell Advisor can only be used online, so solutions can’t be saved or re-used. To be honest, the tool is more like a linear Wizard. It only supports single-site solutions, but it supports Database Availability Groups (DAG), DAS or or SAN-based storage, high availability and client options, but in a very limited fashion (i.e. Yes/No type of questions).
You can start the Dell Exchange 2010 Advisor by clicking here.
Note that for those involved with OCS, Dell also released the Unified Communications Advisor Tool for OCS 2007 R2.
EighTwOne (821) 
Nice Posting and Good to see this, I agree with you…
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Although with Dells Exchange Advisor your configuration inputs cannot be saved as in Microsoft’s Exchange Calculator. The Advisor does allow you save your results in a PDF and download to your system, the option also allows you to print.
I also may be using Microsoft’s spreadsheet incorrectly but Dells doesn’t state the same enormous number of disks are required as MS.
Cheers
Chris
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PDF output and reporting are also found in other sizing tools so they’re no plus. Be sure to read the Exchange Mailbox Role Calculator guide upfront. The tool uses best practices to suggest a configuration, but ofcourse you can deviate from that configuration (but at what costs). Regarding storage, vendors should know their products characteristics best which you can use for matching requirements (e.g. IOPS).
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