Abstract: In a system for dispersively storing data and parity in a plurality of storage devices, information in a first storage device is restored by using information stored in the storage devices other than the first storage device when the first storage device fails. And information in a non-restored area in the first storage device and information in a second storage device are restored by using information stored in the storage devices other than the first and the second storage devices when the second storage device fails while the information in the first storage device is being restored.

Abstract: When a write-back request for writing back new data in a cache memory to disk devices forming a redundant configuration of RAID is generated, a write-back processing unit, reserves a parity buffer area in the cache memory, generates new parity, and then, writes the new data and the new parity to the corresponding disk devices. When an error in which the consistency of RAID is broken occurs in a plurality of the disk devices upon write performed by the write-back processing unit, a recovery processing unit reserves, in the cache memory, a cache stripe area storing data of the entire stripe including the new data which is to be written back, and causes the cache control unit to manage it.

Abstract: Storage destination controller devices wherein N number of data strips and M number of parity strips comprised in each stripe are determined so that the parity strips are not continuously stored to the same memory device between two consecutive stripes when a plurality of stripes, each comprising the N number of data strips and the M number of parity strips of different types, are distributed and stored to the N+M number of memory devices.

Abstract: A substrate processing system which is capable of preventing dust from becoming attached to substrates without increasing the degree of cleanliness of a clean room to a predetermined level, and also capable of increasing the substrate processing throughput without increasing the burden on workers. a plasma processing apparatus 2 that subjects semiconductor wafers W to plasma processing in a cleaned atmosphere. A SMIF 4 has a enclosure 23 that is connected to the plasma processing apparatus 2 and has a cleaned atmosphere therein, a pod stage 26 on which a pod 3 housing semiconductor wafers W is mounted, a pod mounting portion 24 that carries out removal of semiconductor wafers W from the pod 3 and housing of semiconductor wafers W into the pod 3, and a wafer cassette transfer arm 27 that transfers semiconductor wafers W between the pod stage 26 and the plasma processing apparatus 2 via the enclosure 23.

Abstract: A storage control apparatus is provided that comprises a failure monitoring unit arranged to add points in proportion to detected abnormality to find statistically added points for each of N disk devices, the failure monitoring unit issuing an instruction to re-create parity when the statistically added points come closer to a predefined failure determination point, the failure monitoring unit issuing an instruction to disconnect the failed disk device when the statistically added points exceed the failure determination point; and a parity re-creation unit arranged, when receiving the instruction to re-create parity from the failure monitoring unit, to read the plural pieces of user data from (N-1) disk devices to re-calculate parity data for write into the remaining one (1) disk device for each of all addresses of the plurality of disk devices.

Abstract: As a method of vacuum recovery of residual monomers from PVC paste resin latex by heating the latex, the present invention is capable of breaking foam derived from foamable PVC paste resin latex after polymerization by utilizing the methods: using a residual monomer vacuum recovery apparatus having a foam separator and transferring the foam which overflows from the vacuum recovery vessel to the foam separator so that the foam makes direct contact with steam causing a breakdown of the foam. This is done without reducing operability, without lowering stable operation, without degrading product quality, and without reducing the solid concentration of the latex.

Abstract: A method for continuously stripping an unreacted monomer from a vinyl chloride paste resin latex, comprising the steps of continuously supplying the latex to a vacuum recovery vessel, wherein the latex is boiling with generation of foam, under the condition that the temperature of the latex to be supplied is higher than that of the latex in the recovery vessel, withdrawing a monomer gas generated in the recovery vessel through an exhaust line provided with a foam separator, contacting the foam entrained into the exhaust line with steam introduced to the exhaust line and/or the foam separator, thereby destroying the foam, and returning the resulting latex in the separator to the recovery vessel. The unreacted monomer can be efficiently recovered from the latex by a continuous operation, and defoaming can be achieved without deteriorating the quality and without lowering the productivity.

Abstract: A method for continuously stripping an unreacted monomer from a vinyl chloride paste resin latex, comprising the steps of continuously supplying the latex to a vacuum recovery vessel, wherein the latex is boiling with generation of foam, under the condition that the temperature of the latex to be supplied is higher than that of the latex in the recovery vessel, withdrawing a monomer gas generated in the recovery vessel through an exhaust line provided with a foam separator, contacting the foam entrained into the exhaust line with steam introduced to the exhaust line and/or the foam separator, thereby destroying the foam, and returning the resulting latex in the separator to the recovery vessel. The unreacted monomer can be efficiently recovered from the latex by a continuous operation, and defoaming can be achieved without deteriorating the quality and without lowering the productivity.