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I assume its enough but also very much depends on whats the usage plan .... meaning do they just use Outlook or they would be much more usage ?<br />
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Did you try using the Storage calculator to understand the configuration<br />
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- Rancy
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I assume its enough but also very much depends on whats the usage plan .... meaning do they just use Outlook or they would be much more usage ?

Did you try using the Storage calculator to understand the configuration

- Rancy

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It's an environment I've just inherited.<br />
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Usage plan - Outlook Locally on the users PC, OWA, ActiveSync...
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It's an environment I've just inherited.

Usage plan - Outlook Locally on the users PC, OWA, ActiveSync...

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<div class="content wysiwyg-content">
How much memory must be allocated to the casarray server for about 550 mailboxes.<br />
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Current;y have 2 X CAS servers allocated 4GB each.....is this enough?
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How much memory must be allocated to the casarray server for about 550 mailboxes.

Current;y have 2 X CAS servers allocated 4GB each.....is this enough?

Exchange Casarray server memory allocation

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

Microsoft applications include a variety of software programs, including development and digital authoring programs (Expression and Media Center), educational programs, Internet software, including Essentials, Skype and the Live family, anti-virus, productivity applications and suites like Office, Excel, Word, Outlook, Access and PowerPoint, video games and server applications such as Exchange, SharePoint, IIS and Virtual Server.

Microsoft Applications

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.