Network migration involves moving data and programs from one network to another as an upgrade or add-on to a network system. The process of migration makes it possible to set up migrated files on a new network or to blend two independent networks together. The need for network migration may result from security issues, corporate restructuring, increased storage needs, and many other issues.
Though related to system migration, the process of network migration has a few subtle differences. System migration moves files to a new operating system, while migration of a network may keep the same operating system but changes how the data is accessed. Sometimes, system migration is performed simultaneously with network migration, but this option may result in additional downtime.
A common issue that can require the migration of a network is data security. Older network systems do not always have the security protocols used in the modern computer networks. As informational technology and computer sciences advance, security flaws are located and updates to the network code are issued. In some cases, the network code becomes outdated and so insecure that a system becomes obsolete and must be upgraded.
Corporate structure may also affect network requirements. While a small business may be able to function using an in-house network based on a mainframe computer system, company expansion or growth may result in new or more complex needs. A common example of network migration performed for this scenario is the movement from a mainframe based network to a cloud based networking system. The cloud based system operates remotely, allowing users to upload, edit, and delete files from any area where a network connection can be established. The cloud network also offers an additional measure of data security because files and backups can be stored locally and off-site in a safe location; this eliminates the threat of physical damage to equipment and a resulting loss of data.