IT managers are often overwhelmed, not only by day-to-day maintenance , but also by major applications for which they are responsible. This could disrupt necessary upgrades, such as delaying upgrades on physical hardware, which could result in continuing to operate very old servers. It is recommended that your servers be replaced every four years. However, life cycle depreciation varies from organization to organization. Ideally, you should ensure that your servers are replaced and updated according to a predefined matrix and schedule. Life cycle depreciation can be eliminated by leasing servers for a set period of time; new hardware upgrades can then be requested upon termination of the lease and contract renewals.