A data storage device that includes a magnetic storage device and a non-magnetic nonvolatile storage device that measures a hit rate of readwrite commands that result in accesses to the non-magnetic nonvolatile storage device, and adjusts a length of a time period, such as an idle time, based on the hit rate. Input messages are encoded according to a structured parity check matrix that imposes restrictions on a sub-matrix of the parity check matrix to generate LDPC codes. The phase detector compares the firing times of the local oscillator and the input and provides an output whose firing rate is monotonically related to the time difference. The processing aid has a lower melting temperature than the stabilizer. A force may be exerted on an exterior portion of the enclosure such that the activating member pushes on the receptacle and crushes or ruptures the container.