A scroll compressor includes a fixed scroll and an orbiting scroll. The dispenser comprises a holder for a bottle and arranged to pressurize a fluid in the bottle by applying gas pressure. The IR sensing element comprises a flat themistor flake supported by a substrate. Techniques are also provided for managing checkpoints associated with the caches, where the checkpoints are used to determine the position at which to begin processing recovery logs in the event of a failure. Thus, the target amplification gain locking can be realized.