Abstract: A system and method are provided for retention of data on a storage system. An application program provides the storage system with data to be stored on the storage system. The application program also provides the storage system with a retention period that indicates a period of time for which the data may not be deleted. When the storage system receives a request to delete the data, it first evaluates the retention period associated with that data to determine if the retention period has expired. If the retention period has not expired, the storage system denies the request to delete the data.

Abstract: A system and method are provided for retention of data on a storage system. An application program provides the storage system with data to be stored on the storage system. The application program also provides the storage system with a retention period that indicates a period of time for which the data may not be deleted. When the storage system receives a request to delete the data, it first evaluates the retention period associated with that data to determine if the retention period has expired. If the retention period has not expired, the storage system denies the request to delete the data.

Abstract: An apparatus used in electrophotographic printing or copying for conveying magnetically attractable toner or developer particles that includes a stator, electric windings, and an end-plate made of magnetizable material arranged in parallel with the major dimension of the stator. The end-plate and the stator define a channel therebetween in which the particles are conveyed. Electric current supplied to the windings creates a magnetic field whose force moves the particles within the channel. This apparatus may be realized by converting a linear induction electromotor having a stator, an armature, and a translator and replacing the armature and translator with the magnetizable end-plate. Alternatively, this apparatus may be realized by converting a linear induction electromotor having a double stator and a translator and replacing one of the stators and the translator with the magnetizable end-plate.