-------| Exchange & Outlook UPDATE |-------

IN THIS ISSUE
*Commentary: How Big is "Larger"?
*A Message from Mark Minasi: New Interoperability Show
*Make Your Mark on the IT Community!
*Exchanging Ideas: Tricks and Tweaks for Maintaining Exchange Databases
*New and Improved: Protect from Spam and Viruses

++++++++++++++++++++++++++++++++++++++++++++++++++

OUR SPONSORS WHO HELP SUPPORT FREE DELIVERY OF THIS NEWSLETTER:

Dynamic Group Management with Imanami SmartDL
http://www.imanami.com/specials/winitpro_webdir.asp

Integrated Backup/Recovery and Replication Solution for Exchange Server
http://www.sonasoft.com/products/exchange.asp

Clean Up Your Company's Email Act: Using Filters to Block Threats
http://www.windowsitpro.com/go/whitepapers/stbernard/cleanup/?code=EXCHot1019

++++++++++++++++++++++++++++++++++++++++++++++++++

Sponsor: Imanami

Dynamic Group Management with Imanami SmartDL
Accurate security groups and distributions lists are a beautiful thing. Imanami's SmartDL allows an organization to automate the creation and maintenance of these groups with simple-to-create rules and queries. As Active Directory is updated, your security groups and distribution lists are updated. Easy. Efficient. Automated.

Learn how our customers have achieved a 45% reduction in help desk calls with a free 30-day trial. Download at
http://www.imanami.com/specials/winitpro_webdir.asp

++++++++++++++++++++++++++++++++++++++++++++++++++

***COMMENTARY: How Big Is "Larger"?
by Paul Robichaux, Exchange Editor, exadmin@windowsitpro.com

As almost any parent knows, young children have a knack for asking difficult questions. One of my favorite question types is the "relational" question, exemplified by queries such as "How long is 'a while'?" or "How much is 'some'?" Because Microsoft's been touting the ability of Exchange Server 2007 to handle "larger" mailboxes than its predecessors, the question "How big is 'larger'?" has started to pop up more often.

First, a bit of context: Exchange doesn't have a hard limit on the size of individual mailboxes, and it never has. (I dare say it never will, but don't take that as a promise until you hear it from Microsoft.) Exchange does have limits on the size of mailbox databases, which effectively caps the size of individual mailboxes. However, average mailbox size is more often limited by other factors, notably the number of disk I/O operations per second (IOPS) available for mailbox service, the total amount of disk space available, and the number of mailboxes that can be managed on a single server.

These factors are all interrelated, and they all tie in to backup and recovery speeds. Say you want to put 2000 mailboxes on a server. You can back up 20GB per hour on that server, and your service level agreement calls for a maximum of 6 hours of downtime for restores. Because restores take roughly twice as long as backups, your server mailboxes should be limited to about 30MB each:

(3 hours x 20GB per hour) / 2000 mailboxes = 30MB per mailbox

Of course, that's with current disk sizes; in the days when a 20GB disk was big stuff, you might have settled on smaller mailboxes or fewer mailboxes per server.

Now, 250GB and larger disks are becoming commonplace in new server installations. Exchange 2007 promises a large-scale reduction in the number of IOPS required per mailbox, thanks to its 64-bit-powered ability to use large amounts of RAM for the Extensible Storage Engine cache. Microsoft says you can now use much larger mailboxes without a performance penalty. But should you?

Maybe not. Allowing mailboxes to grow without limit can be a bad decision for several reasons:

  • Large mailboxes hurt client performance. Microsoft Outlook 2000 and later do a good job of handling large mailboxes; the problem is with the number of items in the mailbox. Compared with older versions, Outlook 2007 does a better job of dealing with high item counts, but that's not necessarily true of other clients, such as Research in Motion's BlackBerry devices.
  • Large mailboxes hurt worker productivity. A commenter on the Microsoft Exchange Team Blog used the analogy of storing all your paper mail in your mailbox, instead of sorting through it and acting on or filing the important stuff. Exchange 2007 and Outlook 2007 have vastly better search capabilities than the versions we have now, but allowing unbounded mailbox growth encourages people to keep stuff they don't need just because they can.
  • For companies that have retention or compliance requirements, letting employees keep lots and lots of email in their mailboxes instead of in the archive multiplies the problems associated with tracking and retaining necessary messages.

I can already hear teeth clenching among the legions of administrators and users who hate mailbox quotas. It's true that you shouldn't impose arbitrary quotas—if you have a business requirement for large mailboxes, feel free to let them grow. However, just because you can support larger mailboxes on your existing hardware doesn't mean that you must, or even should, until you thoroughly understand the impact on compliance, productivity, and performance.

Many of the technical obstacles that limited the use of large mailboxes in older versions of Exchange, such as slow full-text search and I/O congestion, have been eliminated from Exchange 2007. If those technical limits were getting in the way of your business processes, you'll be able to move forward with allowing larger mailboxes. Just be sure you know what you're getting into.

++++++++++++++++++++++++++++++++++++++++++++++++++

Sponsor: Sonasoft

Integrated Backup/Recovery and Replication Solution for Exchange Server
SonaSafe for Exchange Server is the only software that offers both backup/recovery and replication for Exchange Server as part of a single integrated solution. The solution provides automated one-click rapid recovery to the point of failure. Reliable replication—no distance limitation, can be anywhere in the world. Typically, customers have to buy multiple solutions from different vendors to get similar capability. Also, it would cost three to four times more to get comparable functionality offered by Sonasoft's SonaSafe solution.

Get your free trial TODAY
http://www.sonasoft.com/sonaweb/TestDrive.aspx

++++++++++++++++++++++++++++++++++++++++++++++++++

***A Message from Mark Minasi: New Interoperability Show

TechX World Shows You How to Make It All Fit Together
I wanted to pass along some information about a show that I'm not speaking at, but that looks like a good deal. It's a $129, one-day interoperability road show from Penton, the folks who put out Windows IT Pro magazine, the periodical that I do columns for.

If you're like most folks, "interop" isn't just a buzzword, it's a daily headache. If we all used the same operating system, directory service, and database engines, then life would be a lot easier . . . but most of us can't. Worse yet, interop info can be hard to come by because no vendor's all that excited about helping you use any products but their own.

In response to that, Penton's put together a show with four tracks, each geared to a solution. One features Dustin Puryear talking about making Windows, Linux, and Unix work together. The second offers a day of Active Directory expert Gil Kirkpatrick on integrating AD with other LDAP directory services. At the same time, database techie Randy Dyess explains how to solve data interoperability problems by making different databases replicate amongst one another and produce integrated reports, as well as how to integrate dissimilar relational database engines. Last but not least, popular Windows IT Pro veteran author Mike Otey tackles what may be the single best new IT technology of the past few years—virtualization.

TechX World is coming to DC, Chicago, San Francisco and Dallas in the next few weeks, and you can find out more at
http://www.techxworld.com/registration/index.cfm?code=1019exchange

++++++++++++++++++++++++++++++++++++++++++++++++++

***Make Your Mark on the IT Community!

Nominate yourself or a peer to become an "IT Pro of the Month." This is your chance to get the recognition you deserve and get exclusive notoriety in the IT community. "IT Pro of the Month" winners will be featured in Windows IT Pro magazine, the TechNet Flash email newsletter, and best of all will receive over $600 in IT resources. All you have to do is email us your name, title, photo, and answers to the following questions: "How did your IT solution save your company money?" "In what ways has your solution made innovative use of technology?" and "How is your solution adaptable to other business environments?" It's easy to enter—taking October nominations now for a limited time!

To nominate someone, visit
http://www.windowsitpro.com/go/itpromonth

++++++++++++++++++++++++++++++++++++++++++++++++++

***EXCHANGING IDEAS

Focus: Tricks and Tweaks for Maintaining Exchange Databases

These tasks may be automated, but they can benefit from a bit of manual intervention
Learn how to modify Exchange's automated maintenance processes to keep it running at peak performance.
http://www.windowsitpro.com/Articles/ArticleID/93253/93253.html

------
Have a question? Got answers? Join your peers in the Exchange discussion forums:
http://forums.windowsitpro.com/web/forum/categories.aspx?catid=40&entercat=y
Current Threads:
Exchange 2000 w/Outlook 2003—calendar moved into another default folder
Error updating the Active Directory Schema
Need Exchange "Best Practices" Guide

------
Don't forget to sound off in our Instant Poll. This month's question is "What are your Exchange plans for 2007?"
http://www.windowsitpro.com/MicrosoftExchangeOutlook/Index.cfm

~~~~ Hot Spot: ~~~~

Clean Up Your Company's Email Act: Using Filters to Block Threats
Do you want to block unwanted or undesirable email? Download this free whitepaper to learn how to manage the content of information crossing your network.
http://www.windowsitpro.com/go/whitepapers/stbernard/cleanup/?code=EXCHot1019

++++++++++++++++++++++++++++++++++++++++++++++++++

***NEW AND IMPROVED
by Blake Eno, products@windowsitpro.com

Protect from Spam and Viruses
SPAMfigher announced SPAMfigher Exchange Module (SEM) 3.2, a spam and antivirus filter for Exchange Server 2003/2000. SEM includes a new Outlook Web Access (OWA) toolbar, which lets your users check email from anywhere, while still benefiting from SPAMfighter's spam and antivirus defense features. SEM also gives you the option of having spam filtered to a central SPAMfigher folder, which only you, the administrator, can access. Users benefit because they don't have to see any spam in their mailbox. Updates to SEM's core engine help filter image-based and animated .gif emails. For more information, contact SPAMfigher.
http://www.spamfighter.com

------
Wanted: your reviews of products you've tested and used in production. Share your experiences and ratings of products to "whatshot@windowsitpro.com" and get a Best Buy gift certificate.

++++++++++++++++++++++++++++++++++++++++++++++++++

***EVENTS AND RESOURCES

These Windows-related events, papers, and resources will help you keep your knowledge and skills up to date and help you deploy, secure, and maintain the latest Exchange- and Windows-related technologies. For more Exchange related resources, visit
http://www.windowsitpro.com/go/exchangeresources

Any unscheduled downtime—especially of Exchange systems—can quickly affect a company's bottom line. Learn essential skills for reducing downtime to minutes instead of hours.
http://www.windowsitpro.com/go/essential/lucid8/exchange/?code=1010emailannc

You know you need to manage your email data; how do you do it? What steps are you taking? What additional measures should you enact? What shouldn't you do? Get answers to these questions and get control of your vital messaging data. Download the free eBook today!
http://www.windowsitpro.com/go/ebooks/ilumin/discovery/?code=1018emailannc

Can disaster recovery planning create real value for your business beyond mere survival? Justify your investments in DR planning, and get real answers to your questions about how DR planning and implementation affect the financial performance of your organization. Make cost-effective decisions to positively impact your bottom line! Live Event: Tuesday, November 14
http://www.windowsitpro.com/go/seminars/xosoft/drplanning/?partnerref=1010emailannc

Join experts Douglas McDowell from Solid Quality Learning and Andrew Sisson from Scalability Experts, as well as Intel insiders and other database professionals, to learn the latest about SQL Server and Oracle database mirroring, BI, 64-bit database computing, and high availability. Coming to cities across the US this fall. Visit
http://www.windowsitpro.com/roadshows/sqloracle/?code=1018emailannc

FEATURED WHITE PAPER

===============

Prevent installation and execution of unauthorized software on the computers on your network. Download this free white paper today for a comparison of different techniques for detecting and preventing unauthorized code. Protect yourself against emerging risks today!
http://www.windowsitpro.com/go/whitepapers/bit9/lockdown/?code=1018emailannc

Special Offer: Download any white paper from Windows IT Pro before October 31 and enter to win a Casio Exilim Card Camera! The more you download, the more chances to win! Visit http://www.windowsitpro.com/whitepapers for a full listing of white papers and contest rules.

==== ANNOUNCEMENTS

=====================

Monthly Online Pass—only $5.95 per month!
Includes instant online access to every article ever published in Windows IT Pro, as well as the latest digital issue. Sign up now:
https://store.pentontech.com/index.cfm?s=1&promocode=eu206Aum

Get $40 off on Windows IT Pro
Subscribe to Windows IT Pro today and SAVE up to $40! Along with your 12 issues, you'll get FREE access to the entire Windows IT Pro online article archive, which houses more than 9,000 helpful IT articles. This is a limited-time offer, so order now:
https://store.pentontech.com/index.cfm?s=1&promocode=eu206Auw

~~~~ Contact Us ~~~~

About the newsletter -- letters@windowsitpro.com
About technical questions -- http://www.windowsitpro.com/forums
About product news -- products@windowsitpro.com
About your subscription -- exchangeandoutlookupdate@windowsitpro.com
About sponsoring UPDATE -- salesopps@windowsitpro.com

===============

This email newsletter is brought to you by Exchange & Outlook Administrator, the leading publication for IT professionals managing, securing, optimizing, and migrating Exchange and Outlook. Subscribe today!
https://store.pentontech.com/index.cfm?s=1&promocode=eu205xeb

View the Windows IT Pro Privacy policy at
http://www.windowsitpro.com/AboutUs/Index.cfm?action=privacy

Windows IT Pro a division of Penton Media Inc.
221 East 29th Street, Loveland, CO 80538,
Attention: Customer Service Department

Copyright 2006, Penton Media, Inc. All Rights Reserved.