摘要:
A piezoelectric ceramic material comprising a bismuth layer compound containing MII, Bi, Ti and O wherein MII is selected from Sr, Ba and Ca, and containing MIIBi4Ti4O15 type crystals, wherein MII, is represented by SrxBayCaz wherein x+y+z=1, utilizes thickness shear vibration when 0≦x≦ 1, 0≦y≦0.9, and 0≦z≦1, and thickness extensional vibration when 0≦x
摘要翻译:一种包含含有MII,Bi,Ti和O的铋层化合物的压电陶瓷材料,其中MII选自Sr,Ba和Ca,并含有MIIBi4Ti4O15型晶体,其中MII由SrxBayCaz表示,其中x + y + z = 1, 当0 <= x <= 1,0 <= y <= 0.9,0 <= z <= 1时使用厚度剪切振动,当0 <= x <0.9,0 <= y <= 0.9时, 0 <= z <1。 还提供了包含含有Ca,Bi,Ti,Ln和0的铋层化合物的压电陶瓷材料,其中Ln是镧系元素,并且含有CaBi 4 Ti 4 O 15型晶体,其中原子比Ln /(Ln + Ca)在以下范围内: 0
摘要:
Proposed are a storage apparatus and its control method capable of restoring data of a virtual page to an appropriate device hierarchy according to its data value. This storage apparatus stores, in a backup-destination storage medium, data stored in the respective physical pages allocated with the virtual volume and management information of the virtual volume including information concerning the device hierarchy to which the respective physical pages belong according to a backup command of the virtual volume, and allocates a physical page of the same device hierarchy as the device hierarchy of the physical page that was allocated before the backup to each of the restoration-target virtual pages of the virtual volume, respectively, and writes corresponding data, which was read from the storage medium, into each of the allocated physical pages according to a restoration command of the virtual volume and based on the management information of the virtual volume stored in the storage medium.
摘要:
The present invention enables a unified way of accessing files generated by application programs configured to store contents in files in different formats, without using a conversion program.A database for holding correspondence between an identifier of a content and a storage position of the content is generated based on a backup catalog generated by a backup server, and contents are accessed by using this database. Contents generated by a plurality of different application programs are accessed in a unified way using a single name space.
摘要:
Availability of an information system including a storage apparatus and a computer is improved. First and second storage apparatuses execute remote copy of copying data written into a first primary volume from the computer to a second primary volume, at least one of the first and second storage apparatuses executes local copy of copying the data written into the first or second primary volume in a self-storage apparatus to the corresponding first or second secondary volume, and the computer switches the destination of a write request of the data from the first storage apparatus to the second storage apparatus in case of a failure occurring in the first storage apparatus.
摘要:
A secondary subsystem reads first differential data recorded in a magnetic tape device into a magnetic disk device, and manages such data based on second differential data that was created based on the read first differential data and differential management information. Then, whether differential data exists in partial data is determined based on the differential management information, and, if such differential data exists, the partial data is read into a cache memory, and differential data is applied to the partial data. Meanwhile, if differential data does not exist, the partial data is read into the buffer. Moreover, new full data is recorded by writing the partial data, which was read into the cache memory or the buffer, onto the magnetic tape device in parallel with other read processing.
摘要:
A storage system having a cluster configuration that prevents a load from concentrating on a certain storage node and enhances access performance is disclosed. The storage system is provided with plural storage adaptors having a cache memory for storing data read/written according to an I/O request from a host and a device for holding the data stored in the cache memory, means for connecting an external storage having a logical device that handles the read/written data and a cache memory to the storage adaptor, means for monitoring and grasping a usage situation of each cache memory of the plural storage adaptors and means for referring to information of the usage situation of each cache memory acquired by the grasping means and selecting any of the storage adaptors so that usage of each cache memory is equalized, and the logical device of the external storage is controlled by the storage adaptor selected by the selection means via connection means.
摘要:
A storage apparatus installed in a first site generates a snapshot of a copy source logical device in an intermediate logical device. Next, an external storage apparatus including a logical device corresponding to the intermediate logical device is disconnected from the first site and connected to the second site. A storage apparatus in the second site is made to recognize the logical device in the external storage device as a logical device of a remote copy target. Next, the storage apparatus instructs the second site about writing in the copy target logical device through a global network on the basis of the difference data managed with the bit map.
摘要:
A dielectric ceramic composition comprising at least a main component containing a dielectric oxide of a composition expressed by {(Sr1−xCax)O}m.(Ti1−yZry)O2 and a first subcomponent containing at least one type of compound selected from oxides of V, Nb, W, Ta, and Mo and/or compounds forming these oxides after firing, wherein the symbols m, x, and y showing the molar ratio of the composition in the formula contained in the main component are in relations of 0.94
摘要翻译:一种电介质陶瓷组合物,其包含至少一种主要成分,该主要成分含有由{(Sr 1-x Ca 2+)O} m表示的组成的电介质氧化物, (Ti 1-y-z y O)O 2 2和包含至少一种选自V的氧化物的化合物的第一副成分 Nb,W,Ta,Mo和/或烧成后形成这些氧化物的化合物,其中,表示主成分中所含的式中的组成的摩尔比的符号m,x,y为0.94
摘要:
A method of production of a multilayer ceramic capacitor or other multilayer ceramic electronic device with few structural defects and improved highly accelerated life, that is, a method of production of a multilayer ceramic electronic device having a firing step of firing a stack comprised of a dielectric layer paste and an internal electrode layer paste including a base metal alternately arranged in a plurality of layers, a first annealing step of annealing, at a temperature T1 of 600 to 900° C., the stack after firing and a second annealing step of annealing, at a temperature T2 of 900 to 1200° C. (however, excluding 900° C.), the stack after said first annealing.
摘要:
A method of producing an electronic device including a dielectric layer includes a dielectric ceramic composition containing a main component expressed by a formula of {(Sr1−xCax)O}m.(Ti1−yZry)O2, wherein x fulfills 0≦x≦1.00 and y fulfills 0≦y≦0.20, and producing said dielectric ceramic composition by using a material expressed by a formula of {(Sr1−xCax)O}m′.(Ti1−yZry)O2 wherein the mole ratio m′ fulfills m′
摘要翻译:制造包括电介质层的电子器件的方法包括含有由{(Sr1-xCax)O} m(Ti1-yZry)O2表示的主成分的介电陶瓷组合物,其中x满足0 <= x < = 1.00,y满足0 <= y <0.20,通过使用由{(Sr1-xCax)O} m'(Ti1-yZry)O2表示的材料制备所述介电陶瓷组合物,其中摩尔比m “满足m”