2010-08-26 09:04 PM
There is no fixed number of hours for reconstruction time. This on many factors such as disk type, disk size, system load, options set with raid.reconstruct.perf_impact, number of drives in a raid group, type of raid etc.
2010-08-27 02:15 AM
You can find estimated rebuild and rapid recovery in chapter 6 of TR-3838. But that is for idle systems.
My experience is that for heavily loaded systems rebuild times can easily be 2-3 times longer.