If you have trouble accessing this website, please contact the Office of Web Communications via email.via email. Many organizations are gravitating to the lure of giving up running Exchange Server in favor of turning it over to Microsoft Office 365. The Exchange Online offering in Office 365 is much easier to manage, eliminates the capital cost associated with running the Server edition and the management overhead associated with it. Dailymotion video downloader software free download for mac. At the same time, anyone who has performed an Exchange Server to Office 365 migration will tell you doing so is a complex undertaking. Even the cutover migration method, which is designed to be relatively easy, requires extensive planning. Needless to say, the potential exists for things to go wrong during the migration process. Fortunately, there are some things you can do to hedge your bets and improve your chances of a smooth migration. Choose an Appropriate Migration Method Perhaps the single-most-important thing you can do to ensure a smooth migration to Office 365 is to choose an appropriate migration method. Some of the marketing hype surrounding Exchange Server migrations to Office 365 might lead you to believe the migration process can be completed in six easy steps. In reality, only the smallest organizations can get away with these simplified migrations. Microsoft supports three primary migration types. The first type is a cutover migration. Cutover migrations are designed to be easy, but can only be used in Exchange Server organizations with less than 1,000 mailboxes. However, cutover migrations might not always be the best choice, even for small organizations, because the migration must be completed all at once. If the users have excessively large mailboxes, then a cutover migration might take an unacceptable amount of time to complete. The second type supported by Microsoft is an IMAP migration. An IMAP migration is designed primarily for situations in which mailboxes are migrated from a non-Exchange mail system to Office 365. IMAP migrations can sometimes be used as a shortcut for migrating mailboxes from outdated Exchange Server versions (Exchange 2000 and newer are supported), but IMAP migrations are incapable of migrating anything other than e-mail messages. Consequently, contacts, calendar items and tasks are lost during the migration process. The third primary type supported by Microsoft is a hybrid migration. ![]() ![]() It's the most flexible migration type, but it's also the most complicated. A hybrid migration requires the Exchange admin to create a hybrid Exchange Server deployment by establishing coexistence between the local Exchange Server and Office 365. Hybrid migrations are usually the only migration method suitable for use by larger organizations. Estimate the Time Commitment as Accurately as You Can To ensure a smooth migration, try to estimate the amount of time the migration process will take. If you're performing a hybrid migration, then you'll be able to migrate users in batches. Even so, you don't want to make the batches so large it takes an unreasonable amount of time for the migration batch to complete. Microsoft outlining the average throughput you should expect during an Office 365 migration. A staged migration often experiences an average throughput of 10GB to 14GB per hour. Even so, there are a number of factors that can impact the actual throughput. For instance, the amount of WAN bandwidth you have available is a major factor. There are also three different types of throttling that can make a difference: • Office 365 User Throttling: Designed to adjust user sessions by regulating client access protocols such as RPC over HTTP. This type of throttling tends to impact third-party migration tools and client upload-based migrations. • Office 365 Migration Service Throttling: Places limits on the number of mailboxes you can migrate simultaneously. The default throttle value is 10, but the throttle can be adjusted to meet your needs. • Office 365 Resource Health-Based Throttling: The least restrictive type of throttling. It only comes into play when Office 365 is experiencing service degradation issues. If the service is degraded to the point where users experience performance problems, then the migration process will be put on hold until an acceptable level of performance is restored. Don't Skimp on the Migration Infrastructure If you're planning to perform a staged migration, there are some infrastructure requirements to which you'll have to adhere.
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