4.7 Estimating Migration Time

There is no precise way to estimate how long it will take to migrate a particular post office or domain to Linux. The major determining factors are:

  • Amount of data to migrate

  • Connection speed between the source and destination servers

Fortunately, the Server Migration Utility makes it easy to perform any number of practice runs. You can safely run the Server Migration Utility on a live post office or domain as long as you do not make any of the configuration changes in ConsoleOne that would be made during a real server migration.

You can expect to see the Server Migration Utility move about 6 GB of data per hour. If performance is substantially slower than this, check your network configuration for slow links, and ensure that none of the following processes are running while you are migrating data:

  • GroupWise maintenance activities such as Mailbox/Library Maintenance or Nightly User Upkeep

  • Indexing of messages and documents

  • Backups of GroupWise databases

These activities can hold files open and cause the Server Migration Utility to wait, thus slowing the migration process.

To speed server migration, you might want to move agent log files out of post office folders and domain folders, especially if any of the following situations apply:

  • You have been using the verbose log level.

  • You retain log files for a long period of time.

  • You have been generating MTA message log files.

Agent log files are stored in the following locations:

Agent

Log File Location

POA

post_office\wpcsout\ofs

MTA

domain\mslocal

GWIA

domain\wpgate\gwia\000.prc

WebAccess Agent

GroupWise 2012: N/A

GroupWise 8: domain\wpgate\webac80a\000.prc