The most common indication for CRI in this group was device failure in 26 ears (22 ears with hard failure and four ears with soft failure) contributing to 76.5% of the total CRI.
The most common indication for CRI in this group was also device failure in 13 ears (12 ears with hard failure and one ear with soft failure) contributing to 68.4% of the total CRI.
The low maxSoft column represents an assignment where hard checkpoints are created frequently, which guarantees a small re-execution time after a hard failure. The high maxSoft column corresponds to the opposite case.
The first type of failure will be referred to as hard failures, and the second type as soft failures.
The two previous protocols always assume hard failures. Our protocol does not rely on the foreign agents to store the checkpoints.
The protocol uses checkpoints saved locally in the mobile host to tolerate soft failures, and it uses checkpoints stored in stable storage to recover hard failures. The first type of checkpoint is called soft checkpoints, and the second type hard checkpoints.
At the high temperature limits in HALT, hard failures
tend to occur in poorly designed components and parts that already run hot, such as power supplies.
The detector performed without soft or hard failures
, proving to be more than robust when exposed to thermal extremes.
After three days of testing, 23 boards showed hard failures
, and the last two had intermittent readings.
Any hard failures
induced during the precipitation screen will be detected as well as any soft failures that may be induced by the stresses.