Abstract: A storage system includes: a central processing unit; a main memory; first management information that associates a hash value of received data with an address in a volume; and an I/O processing package. The I/O processing package includes an I/O processor and an I/O memory. The I/O processor executes protocol processing. The I/O processor executes at least a part of search processing of an address associated with a hash value of first received data in the first management information. The central processing unit controls execution of deduplication processing of the first received data based on data of an address associated with the hash value of the first received data.

Abstract: A ball joint includes a bearing seat in the form of a resin ball seat provided within a seat-accommodating portion of a metal socket for slidably and rotatably receiving a ball portion of a ball stud. An end portion of the seat-accommodating portion through which the stud portion passes extends towards the stud portion beyond the spherical center of the ball portion. The ball seat has a covering portion formed on the outer side of a seat opening portion of a ball-accommodating portion which has a spherical shape conforming to a sliding surface of the ball portion of the ball stud. The covering portion is formed by bending the seat opening portion such that it covers the outer periphery of the opening portion of the seat-accommodating portion of the socket.

Abstract: A ball joint which is capable of ensuring the retention strength to resist a force tending to pull out or pry out a ball portion of a ball stud while ensuring sealing performance of the dust cover is provided. A ball joint 100 includes a bearing seat in the form of a resin ball seat 130 which is provided within a seat-accommodating portion 121 of a metal socket 120 for slidably and rotatably receiving a ball portion 113 of a ball stud 110. The seat-accommodating portion 121 is formed such that its end portion through which the stud portion 111 passes extends towards the stud portion 111 beyond the spherical center O of the ball portion 114. The ball seat 130 has a covering portion 133 formed on the outer side of a seat opening portion 132 of a ball-accommodating portion 131 which has a spherical shape in conformity to a sliding surface 114a of the ball portion 114 of the ball stud 110.