swati poddar

• Nov 16th, 2007

 

Fault tolerence is a concept in kernel. There are basically two types of kernel
[1] monolithic kernel [used in windows XP or generally]
[2] microkernel [used in robotics]

Monolithic kernel has hierarchical protection domain. That means its hardware management is in ring form. In monolithic kernel there is single memory and all applications are using same memory with frequent &  good access of system resoures. There resources are linked with h/w. So even a single fault to hardware can currupt the whole system.
So in safety of this micro kernel designed so that even a single fault of h/w do not currupt whole system.