How do I fully utilize my network connection?
There are two basic factors involved:
- How networks function.
- The role MigrationWiz plays on your network.
You can think of your network as a highway, where cars represent the data flowing and the lanes representing the size of your network pipe. If you have a single car travelling down a four-lane highway, you will have three lanes under-utilized. Similarly, with your migration, a single connection can only utilize a fraction of your network speed; this is also known as your
goodput. You can utilize more of your network by opening more connections. An aggregation of your
goodput will allow you to achieve maximum
throughput of your network.
MigrationWiz opens a single connection per mailbox to the Source and a single connection per mailbox to the Destination. Using a single connection on a server allows us to minimize the resource utilization (mainly CPU) on your server. MigrationWiz implements many network optimization techniques, making us one of the fastest data transfers on the market over a single connection. We support the migration of hundreds of thousands of mailboxes at any given second. If you have a large network pipe, you will need to migrate more mailboxes simultaneously in order to utilize more bandwidth. A good rule of thumb is that for every 1Mbps of bandwidth available, you will be able to migrate approximately three mailboxes simultaneously before the network is overutilized. Note that your mileage may vary depending on many network factors, including latency. If you wish to obtain a more accurate number, you can size your migration. Speed test tools measure throughput and not goodput.
Finally, note that not all internet service providers are created equal. A T1 line from one provider may have different network performance than a T1 line from another provider. One may require only three simultaneous migrations to consume a T1 line, while another may require eight simtultaneous migrations to consume the line. To have an accurate measurement, we recommend that you size your migration ahead of time.
More information can also be found on Wikipedia regarding measurement of network throughput.