A read-only integer, in seconds, reporting how often this drive is polled for SMART failure-prediction data, referencing the underlying IBMPSG_StorageFailurePredictionSettings.Period property. This tells an admin how frequently the system checks the disk's health status, which affects how quickly a newly developing failure condition would actually be detected and reported. A drive polled every 300 seconds would have its failure-prediction status refreshed roughly every 5 minutes.