抄録
Hard disk drives are packed with increasingly higher density in modern data storage enclosures and systems. This may impose some risks to the system dynamic performances if the system is not well designed. For example, the hard disk drive (HDD) read and write (R/W) performance will be degraded more due to higher mechanical cross-talk as there are more and closely arranged HDDs in the system. Secondary, the more HDDs packed in a storage enclosure, the more mass the system has. This lowers the system modal frequencies and likely affects its dynamic performances, such as non-operational shock behavior during shipping and handling of the system and HDD operational vibration due to external vibrations. In this paper, we will study both non-operational shock and operational vibration using a state of the art HGST storage enclosure which has the highest HDD volumetric density packaged in any enclosure on the market.
