Can systems be self-healing ?
Your hard drive is already self-healing… up to a point. Your hard drive has a number of “reserve sectors”. If one of the sectors on the HD goes bad, the HD will save your data, and remap the dead sector to one of the reserve sectors on the fly. To you, the HD was just a little slow in responding, but the sector is still there. The modern HD also has a lot of OTHER parameters that it keeps track about its own health, and warns you about pending failures through a system called S.M.A.R.T. You can look it up yourself. Error detection and correction code that improve transmission quality is another. Most modem protocols incoporate EDACC in various forms. Quality-adaptive speed algorithms are another. When there’s a lot of noise on the line, transmission speed slows, but does not stop. When noise goes back down, speed kicks up again. Speed is adaptive to the line condition. So yes, some systems are already self-healing.
