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To upgrade the systems or fix the security issues, some physical machines (PMs) in data centers are required to undergo a maintenance process, which might disable the continuous services of the virtual machines (VMs) run on them for a few time slots. To reduce the waiting delay, one may migrate the VMs to other active PMs. However, it will incur extra migration cost, e.g., bandwidth or memory used...
During the failure free operating period (FFOP), products have ZERO FAILURE and not unscheduled maintenance. Comparing with the traditional reliability measurement of mean time between failures (MTBF), the concept of FFOP abandons the hypothesis of random failure. Firstly, the essential features of FFOP are expounded; then a powerful equation is derived for setting quantitative reliability requirements...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.